{"id":4144,"date":"2024-04-03T17:54:32","date_gmt":"2024-04-03T08:54:32","guid":{"rendered":"http:\/\/www.uwastrocamp.com\/?p=4144"},"modified":"2024-04-03T17:54:32","modified_gmt":"2024-04-03T08:54:32","slug":"4%ec%9b%94%ec%9d%98-%ea%b3%bc%ed%95%99%ec%82%ac-%eb%b3%b4%ec%9d%b4%ec%a7%80-%ec%95%8a%eb%8a%94-%ea%b2%83%ec%9d%84-%eb%b0%94%eb%9d%bc%eb%b3%b4%eb%8a%94-%eb%b0%a9%eb%b2%95","status":"publish","type":"post","link":"http:\/\/www.uwastrocamp.com\/?p=4144","title":{"rendered":"4\uc6d4\uc758 \uacfc\ud559\uc0ac: \ubcf4\uc774\uc9c0 \uc54a\ub294 \uac83\uc744 \ubc14\ub77c\ubcf4\ub294 \ubc29\ubc95"},"content":{"rendered":"\n

\u3000\ud754\ud788 \ub9d0\ud558\ub294 \uc624\uac10 \uc911 \uc2dc\uac01\uc740 \uc778\uccb4 \uac10\uac01 \uc218\uc6a9\uccb4 \uc911 70%\ub97c \ucc28\uc9c0\ud560 \uc815\ub3c4\ub85c \uc911\uc694\ud55c \uc694\uc18c\uc774\ub2e4. \u2018\ubcf8\ub2e4\u2019\ub77c\ub294 \uac83\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc6b0\ub9ac\uc5d0\uac8c \ub108\ubb34 \ub2f9\uc5f0\ud55c \uc77c\uc774\ub2e4. \uc9c0\uae08 \uc774 \uae00 \uc5ed\uc2dc \uc6b0\ub9ac\uac00 \ub208\uc73c\ub85c \u2018\ubcf4\uace0\u2019 \uc788\ub294 \uac83\uc774\uba70 \uc9c0\uae08\ub3c4 \ub208\uc55e\uc5d0 \ubb34\uc5b8\uac00\uac00 \u2018\ubcf4\uc774\uace0\u2019 \uc788\uc744 \uac83\uc774\ub2e4. \uc774\ub807\uac8c \ub208\uc73c\ub85c \ubcf4\ub294 \uc791\uc5c5\uc740 \uc778\uac04\uc5d0\uac8c \uad11\uc7a5\ud788 \uc758\ubbf8\uc788\ub294 \uc77c\uc774\ub2e4. \uadf8\ub807\ub2e4\uba74 \uc6b0\ub9ac\ub294 \ub208\ub9cc \uc81c\ub300\ub85c \uc791\ub3d9\ud55c\ub2e4\uba74 \ubaa8\ub4e0 \uac83\uc744 \ubcfc \uc218 \uc788\uc744\uae4c? \uadf8\ub807\uc9c0 \uc54a\ub2e4. \uc6b0\ub9ac\uac00 \ubb34\uc5b8\uac00\ub97c \ubcf4\uae30 \uc704\ud574\uc11c \ud544\uc694\ud55c \uc900\ube44\ubb3c\uc740 \u2018\ub208\u2019 \ud558\ub098\uac00 \uc544\ub2c8\ub2e4. \ubc14\ub85c \ube5b\uc774 \ud544\uc694\ud558\ub2e4. \ube5b\uc774 \ud574\ub2f9 \ubb3c\uccb4\uc758 \uc815\ubcf4\ub97c \ub2f4\uace0 \uc6b0\ub9ac\uc5d0\uac8c \ub2e4\uac00\uc624\uace0 \uc6b0\ub9ac\ub294 \uadf8\uac83\uc744 \ud574\uc11d\ud55c\ub2e4. \uc774 \uacfc\uc815\uc774 \u2018\ubcf8\ub2e4\u2019\ub77c\ub294 \uac83\uc774\ub2e4. \uadf8\ub7f0 \uc758\ubbf8\uc5d0\uc11c \ub9ce\uc740 \uc0ac\ub78c\uc758 \ud638\uae30\uc2ec\uc744 \uc790\uadf9\ud558\ub294 \uac83\uc774 \uc800 \uba3c \uc6b0\uc8fc\uc5d0 \uc874\uc7ac\ud55c\ub2e4. \uc6b0\ub9ac\uac00 \ubcf4\uae30 \uc704\ud574 \ud544\uc694\ud55c \uc900\ube44\ubb3c\uc778 \u2018\ube5b\u2019\uc744 \ube7c\uc557\uc544 \uac00\ubc84\ub9ac\ub294 \uad34\ubb3c. \ube14\ub799\ud640\uc774 \uadf8 \uc8fc\uc778\uacf5\uc774\ub2e4.
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\ube14\ub799\ud640\uc758 \uc0c1\uc0c1\ub3c4<\/figcaption><\/figure><\/div>\n\n\n


\u3000\uc601\uad6d\uc758 \uc131\uc9c1\uc790 \uacb8 \ucca0\ud559\uc790 \uc874 \ubbf8\uccbc\uc774 1783\ub144 \ube14\ub799\ud640\uc758 \uac1c\ub150\uc744 \ucc98\uc74c \uc5b8\uae09\ud55c \uc774\ub798 \uc774 \uc758\ubb38\uc758 \ucc9c\uccb4\ub294 \uc624\ub7ab\ub3d9\uc548 \ucc9c\ubb38\ud559\uc790\ub4e4 \uc0ac\uc774\uc5d0 \ub17c\uc7c1\uac70\ub9ac\uac00 \ub418\uc5b4 \uc654\ub2e4. \uc911\ub825\uc774 \ub108\ubb34\ub098\ub3c4 \uac15\ud574 \ube5b\ub3c4 \ube60\uc838\ub098\uac08 \uc218 \uc5c6\ub294 \ucc9c\uccb4\ub77c\ub2c8? \uc544\uc778\uc288\ud0c0\uc778\uc870\ucc28 \uc774\ub7ec\ud55c \ucc9c\uccb4\ub97c \uc778\uc815\ud558\uc9c0 \uc54a\uc558\ub2e4. \uc624\ud39c\ud558\uc774\uba38\uac00 \ud558\ud2c0\ub79c\ub4dc\uc640 \ud568\uaed8 \ube14\ub799\ud640\uc774 \uc874\uc7ac\ud560 \uc218 \uc788\uc74c\uc744 \ubcf4\uc600\uc9c0\ub9cc \uc5ec\uc804\ud788 \uacc4\uc0b0 \uc0c1\uc73c\ub85c\ub9cc \uc608\uce21\ud560 \ubfd0 \uc2e4\uc81c \ube14\ub799\ud640\uc744 \ucc3e\uc544\ub0b4\uc9c0\ub294 \ubabb\ud55c \uc0c1\ud669\uc774\uc5c8\ub2e4. \uc774\uc81c \ube14\ub799\ud640\uc774\ub77c\ub294 \uac83\uc774 \uc815\ub9d0 \uc874\uc7ac\ud558\ub294\uc9c0 \uadf8 \uc99d\uac70\ub97c \uac00\uc838\uc640\uc57c \ud588\ub2e4.<\/p>\n\n\n\n

\u3000\ube14\ub799\ud640\uc740 1964\ub144\uc774 \ub418\uc5b4\uc11c\uc57c \uadf8 \ud754\uc801\uc744 \uc7a1\uc744 \uc218 \uc788\uc5c8\ub2e4. \uc6b0\uc8fc\uc5d0\uc11c \ub0a0\uc544\uc624\ub294 X\uc120\uc744 \uce21\uc815\ud558\uae30 \uc704\ud574 \ubc1c\uc0ac\ud55c \uad00\uce21 \ub85c\ucf13\uc5d0\uc11c \uc5ec\ub7ec \uac1c\uc758 X\uc120 \ucc9c\uccb4\uac00 \ubc1c\uacac\ub418\uc5c8\ub2e4. \uadf8 \uc911 \ubc31\uc870\uc790\ub9ac \uc704\uce58\uc5d0\uc11c \ubc1c\uacac\ub41c \uac15\ub825\ud55c X\uc120 \ucc9c\uccb4\uac00 \uc788\uc5c8\ub294\ub370 \uc774\ub97c \ubc31\uc870\uc790\ub9ac X-1\uc774\ub77c \ubd80\ub978\ub2e4. \uc9c0\uad6c \ub300\uae30\uc5d0 \uc758\ud574 \ub9c9\ud600\ubc84\ub9ac\ub294 X\uc120 \uad00\uce21\uc740 \uc7a0\uae50\uc758 \ub85c\ucf13 \ubc1c\uc0ac\ub85c\ub294 \ud55c\uacc4\uac00 \uc788\uc5c8\uace0 1970\ub144, \uc6b0\ud6c4\ub8e8\ub77c \ubd88\ub9ac\ub294 \uc704\uc131\uc744 \ubc1c\uc0ac\ud558\uc5ec X-1\uc744 \uc870\uae08 \ub354 \uc790\uc138\ud788 \ud655\uc778\ud560 \uc218 \uc788\uc5c8\ub2e4. \uadf8 \uacb0\uacfc \uccad\uc0c9 \ucd08\uac70\uc131 \ubcc4 \uc606\uc5d0 \ubb34\uc5b8\uac00\uac00 \uc788\ub2e4\ub294 \uac83\uc744 \uc54c \uc218 \uc788\uc5c8\ub2e4. \ubcf4\uc774\uc9c0 \uc54a\uc9c0\ub9cc \ubb34\uc5b8\uac00\uac00 \ubcc4\uc744 \ub2f9\uae30\uace0 \uc788\uc5c8\ub2e4. \uc774 \uc815\uccb4 \ubd88\uba85\uc758 \ucc9c\uccb4\uac00 \ube14\ub799\ud640\uc778\uac00 \uc544\ub2cc\uac00\ub294 \ud559\uc790\ub4e4 \uc0ac\uc774\uc5d0\uc11c\ub3c4 \ub17c\ub780\uac70\ub9ac\uac00 \ub418\uc5c8\ub2e4. \ud2b9\ud788 1970\ub144\ub300\uc5d0\ub294 \uacc4\uc0b0\ub41c \uc9c8\ub7c9(\ud0dc\uc591 \uc9c8\ub7c9\uc758 7\ubc30 \uc774\uc0c1) \uc5ed\uc2dc \ubd88\ud655\uc2e4\ud558\uae30 \ub54c\ubb38\uc5d0 \ud574\ub2f9 \ubd84\uc57c\uc758 \uad8c\uc704\uc790\uc600\ub358 \uc2a4\ud2f0\ube10 \ud638\ud0b9\uacfc \ud0b5.\uc190\uc740 \uc774 \ucc9c\uccb4\ub97c \uac00\uc9c0\uace0 \ub0b4\uae30\ub97c \uac78\uae30\ub3c4 \ud588\ub2e4.
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\ubc31\uc870\uc790\ub9ac X-1\uc758 \uc0c1\uc0c1\ub3c4. \ube14\ub799\ud640\uc774 \uccad\uc0c9\ucd08\uac70\uc131\uc758 \ubb3c\uc9c8\uc744 \ub04c\uc5b4\ub2f9\uae30\uace0 \uc788\ub2e4.<\/figcaption><\/figure><\/div>\n\n\n


\u3000\uc758\ubb38\uc740 \uace7 \ud655\uc2e0\uc774 \ub418\uc5c8\ub2e4. \uc9c0\uc18d\ub41c \uc5f0\uad6c\uc640 \uad00\uce21\uc744 \ud1b5\ud574 \ubc31\uc870\uc790\ub9ac X-1\uc740 \uc778\ub958\uac00 \ubc1c\uacac\ud55c \ucd5c\ucd08\uc758 \ube14\ub799\ud640\ub85c \ud655\uc815\ub418\uc5c8\ub2e4. \ud638\ud0b9\uc740 \ub0b4\uae30\uc5d0\uc11c \uc84c\uace0 \uc790\uc2e0\uc758 \ube14\ub799\ud640 \uc5f0\uad6c\uac00 \uc633\ub2e4\ub294 \uac83\uc744 \ud655\uc778\ud588\ub2e4. \uc2ec\uc9c0\uc5b4 \uc774 X-1\uc740 2021\ub144 \ud55c\uad6d\ucc9c\ubb38\uc5f0\uad6c\uc6d0\uacfc \uad6d\uc81c \uacf5\ub3d9\uc5f0\uad6c\ud300\uc774 \ub2e4\uc2dc \ubd84\uc11d\ud558\uc5ec \uadf8 \uc9c8\ub7c9\uc774 \ud0dc\uc591\uc758 21\ubc30\ub85c \uc774\uc804 \uacb0\uacfc\uac12\ubcf4\ub2e4 \ubb34\ub824 50% \uac00\uae4c\uc774 \ubb34\uac81\ub2e4\ub294 \uc0ac\uc2e4\uc744 \ubc1d\ud600\ub0b4\uae30\ub3c4 \ud588\ub2e4. \uc774\uc81c \ube14\ub799\ud640\uc740 \uc2e4\uc874\ud55c\ub2e4. \ub2e4\ub9cc \uc5ec\uc804\ud788 \ube14\ub799\ud640\uc774 \uc815\ud655\ud558\uac8c \uc5b4\ub514 \uc788\ub294\uc9c0 \uc54c\uc544\ub0b4\ub294 \uac83\uc740 \uc26c\uc6b4 \uc77c\uc774 \uc544\ub2c8\uc5c8\ub2e4. \ub208\uc5d0 \ubcf4\uc774\uc9c0 \uc54a\ub294 \ube14\ub799\ud640\uc744 \uc704\ud574 \ub2e4\ub978 \ubc29\ubc95\uc744 \ucc3e\uc544\uc57c \ud588\ub2e4.
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\uc2a4\ud2f0\ube10 \ud638\ud0b9\uc758 \ubaa8\uc2b5. \ube14\ub799\ud640\uc774 \uc788\ub2e4\uace0 \ubbff\uc5c8\ub358 \ud638\ud0b9\uc740 \uc815\uc791 \ubc31\uc870\uc790\ub9ac X-1\uc774 \ube14\ub799\ud640\uc774 \uc544\ub2c8\ub2e4\uc5d0 \ub0b4\uae30\ub97c \uac78\uc5c8\ub2e4. \ub9cc\uc57d \ub0b4\uae30\uc5d0 \uc9c0\ub354\ub77c\ub3c4 \uc790\uc2e0\uc774 \uc5f0\uad6c\uac00 \uc633\ub2e4\ub294 \uac83\uc774 \ub418\ubbc0\ub85c \uc5ec\ub7ec\ubaa8\ub85c \uae30\ubd84 \ub098\uc060 \uc77c\uc774 \uc5c6\ub2e4\ub294 \uc774\uc720 \ub54c\ubb38\uc774\uc5c8\ub2e4.<\/figcaption><\/figure><\/div>\n\n\n


\u3000\ubc31\uc870\uc790\ub9acX-1\uc774 \uac15\ud55c X\uc120\uc744 \ubfdc\uc5b4\ub0b4\uba74\uc11c \uc790\uc2e0\uc758 \uc874\uc7ac\uac10\uc744 \ubcf4\uc5ec\uc8fc\uace0 \uc788\uc5c8\ub2e4\uba74 \uc804\ud30c\ub97c \ud1b5\ud55c \uc6b0\uc8fc \uad00\uce21\uc5d0\uc11c\ub3c4 \uc774\uc0c1\ud55c \ucc9c\uccb4\ub4e4\uc774 \uac10\uc9c0\ub418\uae30 \uc2dc\uc791\ud588\ub2e4. \ucf00\uc784\ube0c\ub9ac\uc9c0 \ucd9c\uc2e0\uc758 \ud638\uc8fc \ucc9c\ubb38\ud559\uc790 \uc874 \ubcfc\ud134\uc740 2\ucc28 \ub300\uc804 \ub2f9\uc2dc \ub808\uc774\ub354 \uac1c\ubc1c\uc744 \ud588\ub358 \uacbd\ud5d8\uc744 \uc0b4\ub824 \uc804\ud30c\uc640 \uad00\ub828\ub41c \uc5f0\uad6c\ub97c \ud558\uace0 \uc788\uc5c8\ub2e4. \uadf8 \uacfc\uc815\uc5d0\uc11c \uac15\ub825\ud55c \uc804\ud30c\ub97c \ubfdc\uc5b4\ub0b4\uace0 \uc788\ub294 \ucc9c\uccb4\uc758 \uc704\uce58 \uc815\ud655\ub3c4\ub97c \ub192\uc77c \uc218 \uc788\uc5c8\ub294\ub370 \uc774 \uc911 \uc6b0\ub9ac\uc740\ud558\uc758 \uc911\uc2ec \ubc29\ud5a5\uc73c\ub85c \ucd94\uce21\ub418\ub294 \uac15\ud55c \uc804\ud30c\uc6d0 \uad81\uc218\uc790\ub9acA\uc5d0 \uad00\uc2ec\uc744 \uac00\uc84c\ub2e4. \uacfc\uc5f0 \uc6b0\ub9ac\uc740\ud558\uc5d0\uc11c \uc774 \uac15\ub825\ud55c \uc804\ud30c\uac00 \ub098\uc624\ub294 \uac83\uc774 \ub9de\ub294\uac00? \uadf8\ub807\ub2e4\uba74 \uc774 \uc804\ud30c\uc6d0\uc758 \uc815\uccb4\ub294 \ubb34\uc5c7\uc778\uac00. \uadf8 \ube44\ubc00\uc740 1963\ub144 \ud018\uc774\uc0ac\uac00 \ubc1c\uacac\ub418\uba74\uc11c \ud480\ub9ac\uae30 \uc2dc\uc791\ud588\ub2e4.
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\uc874 \ubcfc\ud134\uc774 \uc0ac\uc6a9\ud588\ub358 \uc804\ud30c\ub9dd\uc6d0\uacbd. \ub545\uc5d0 \ud3ec\ubb3c\uba74\uc758 \uc7a5\uce58\ub97c \ub9cc\ub4e4\uc5c8\ub2e4.<\/figcaption><\/figure><\/div>\n\n\n


\u30001963\ub144 \ub9c8\ub974\ud2f4 \uc288\ubbf8\ud2b8\uc640 \uc5f0\uad6c\ud300\uc774 \uac15\ub825\ud55c \uc804\ud30c\uc6d0 3C273\uc758 \uc704\uce58\ub97c \ud2b9\uc815\ud574 \uad00\uce21\ud55c \uacb0\uacfc \uc774 \ucc9c\uccb4\uac00 \uc218\uc2ed\uc5b5 \uad11\ub144 \ub5a8\uc5b4\uc838 \uc788\ub2e4\ub294 \uc0ac\uc2e4\uc744 \uc54c\uc544\ub0b4\uba74\uc11c \uc774 \uc804\ud30c\uc6d0\uc774 \ubb34\uc5c7\uc778\uc9c0\uc5d0 \ub300\ud55c \uc5f0\uad6c\uac00 \uc9c0\uc18d\ub418\uc5c8\ub2e4. \uadf8 \uc720\ub825\ud55c \ud6c4\ubcf4\uc790\ub85c \uaf3d\ud78c \uac83\uc774 \ube14\ub799\ud640\uc774\uc5c8\ub2e4. \uc774 \uad34\ubb3c\uac19\uc740 \ucc9c\uccb4\uac00 \ud018\uc774\uc0ac\uc758 \uc911\uc2ec\uc5d0 \uc874\uc7ac\ud55c\ub2e4\uace0 \uac00\uc815\ud558\uba74 \ub9ce\uc740 \uc758\ubb38\uc810\uc774 \ud480\ub9b0\ub2e4. \uadf8\ub807\ub2e4\uba74 \uc774\uc81c \ub2e4\uc2dc \uad81\uc218\uc790\ub9acA\ub85c \ub3cc\uc544\uac00\ubcf4\uc790. \ube14\ub799\ud640\uc774\ub77c\ub294 \uac83\uc774 \uc874\uc7ac\ud55c\ub2e4. \uadf8\uac83\ub3c4 \uc740\ud558\uc758 \uc911\uc2ec \ubd80\ubd84\uc5d0 \uc704\uce58\ud560 \uac00\ub2a5\uc131\uc774 \uc788\ub2e4. 1970~80\ub144\ub300 \ucc9c\ubb38\ud559\uc790\ub4e4\uc740 \ube14\ub799\ud640\uc774 \uc788\uc744 \uac83\uc73c\ub85c \uc758\uc2ec\ub418\ub294 \uc740\ud558\uc758 \ubaa9\ub85d\uc744 \ub9cc\ub4e4\uae30 \uc2dc\uc791\ud588\ub2e4. \uc774\ub97c \ud65c\ub3d9\uc131\uc740\ud558\ud575(Active Galactic Nuclei, AGN)\uc774\ub77c \ubd80\ub978\ub2e4. \uadf8 \uc0ac\uc774 1974\ub144, \ubbf8\uad6d\uc758 \ucc9c\ubb38\ud559\uc790 \ub85c\ubc84\ud2b8 \ube0c\ub77c\uc6b4\uacfc \ube0c\ub8e8\uc2a4 \ubc1c\ub9ad\uc740 \uc6e8\uc2a4\ud2b8\ubc84\uc9c0\ub2c8\uc544\uc5d0 \uc704\uce58\ud55c 45\ud53c\ud2b8 \uc804\ud30c\ub9dd\uc6d0\uacbd\uc73c\ub85c \uad81\uc218\uc790\ub9acA \uc18d \uac15\ud55c \uc804\ud30c\uc6d0\uc744 \ub4dc\ub514\uc5b4 \ucc3e\uc544\ub0c8\ub2e4. \u2018\uc740\ud558\uc911\uc2ec\ubd80\uc758 \ubc00\uc9d1\uc804\ud30c\uc6d0\u2019\uc774\ub77c \ubd88\ub9b0 \uc774\uac83\uc740 \uc904\uc5ec\uc11c \uad81\uc218\uc790\ub9acA* (\ub354 \uc904\uc5ec\uc11c Sgr A*)\ub85c \ubd80\ub978\ub2e4.
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\ucc2c\ub4dc\ub77c X\uc120 \ub9dd\uc6d0\uacbd\uc774 \uad00\uce21\ud55c Sgr A*\uc758 \ubaa8\uc2b5<\/figcaption><\/figure><\/div>\n\n\n


\u3000Sgr A*\uc758 \uc704\uce58\ub294 \uc54c\uc544\ub0c8\uc5b4\ub3c4 \uc774 \ucc9c\uccb4\ub97c \uc790\uc138\ud788 \uc0b4\ud3b4\ubcf4\uae30\uc5d0\ub294 \uc81c\ud55c \uc0ac\ud56d\uc774 \uc0c1\ub2f9\ud788 \ub9ce\uc558\ub2e4. \uc218\ub9ce\uc740 \uc131\uac04\ubb3c\uc9c8\uc774 \uc6b0\ub9ac \ub208\uc73c\ub85c \ubcfc \uc218 \uc788\ub294 \uac00\uc2dc\uad11\uc120 \uc601\uc5ed\uc744 \ubc29\ud574\ud588\ub2e4. \ube14\ub799\ud640\uc740 \uc560\ucd08\uc5d0 \ubcfc \uc218 \uc5c6\uace0(\ub9cc\uc57d \uc800 \ucc9c\uccb4\uac00 \uc9c4\uc9dc \ube14\ub799\ud640\uc774\ub77c\uba74) \uc77c\ubc18 \ub9dd\uc6d0\uacbd\uc73c\ub85c\ub294 \uadf8 \uc18d\uc744 \ub4e4\uc5ec\ub2e4 \ubcfc \uc218 \uc5c6\ub2e4. \uc774\ub54c \uc0ac\uc6a9\ud55c \uac83\uc740 \uc801\uc678\uc120\uc774\uc5c8\ub2e4. \uc131\uac04 \uba3c\uc9c0\ub97c \ub6ab\uace0 \ub098\uc62c \uc218 \uc788\ub294 \uc801\uc678\uc120\uc73c\ub85c Sgr A*\ub97c \uc0b4\ud3b4\ubcf8 \uc720\ub7fd\uacfc \ubbf8\uad6d\uc758 \uc5f0\uad6c\uc9c4\uc740 (\uac01\uac01 \ub3c5\uc790\uc801\uc73c\ub85c \uc9c4\ud589\ub418\uc5c8\ub2e4.) \uadf8 \uc8fc\ubcc0\uc744 \ub3c4\ub294 \ubcc4\uc758 \uc774\uc0c1\ud55c \uc6c0\uc9c1\uc784\uc5d0 \uc9d1\uc911\ud588\ub2e4. 20\ub144 \uac00\uae4c\uc774 \uc774\uc5b4\uc9c4 \uad00\ucc30\uc740 \ubcc4\uc758 \uc6c0\uc9c1\uc784\uc744 \ud718\uac8c \ub9cc\ub4dc\ub294 \uc774 \uc815\uccb4 \ubd88\uba85\uc758 \ucc9c\uccb4\uac00 \ube14\ub799\ud640\uc774 \ubd84\uba85\ud568\uc744 \ubcf4\uc600\ub2e4. \uc774\uc81c \uc6b0\ub9ac\uc740\ud558 \uc911\uc2ec\uc5d0\ub3c4 \ube14\ub799\ud640\uc740 \uc788\ub2e4. \ub2e4\ub9cc \uc5ec\uc804\ud788 \ubcf4\uc774\uc9c0 \uc54a\ub294\ub2e4.
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Sgr A* \uc8fc\ubcc0 \ubcc4 \uc6c0\uc9c1\uc784\uc744 \uc5f0\uad6c\ud55c \uc548\ub4dc\ub808\uc544 \uac8c\uc988(\uc911\uc559)\uc640 \ub77c\uc778\ud558\ub974\ud2b8 \uac90\uccbc(\uc6b0\uce21)\uc740 2020\ub144 \ub178\ubca8\uc0c1\uc744 \uc218\uc0c1\ud558\uac8c \ub41c\ub2e4. \uc88c\uce21\uc5d0 \uc788\ub294 \ub85c\uc800 \ud39c\ub85c\uc988 \uc5ed\uc2dc \ube14\ub799\ud640 \uc5f0\uad6c\uc758 \ub300\uac00\ub85c 2020\ub144 \ub178\ubca8 \ubb3c\ub9ac\ud559\uc0c1\uc740 \ube14\ub799\ud640\uc5d0\uac8c \uc8fc\uc5b4\uc84c\ub2e4\uace0 \ud574\ub3c4 \uacfc\uc5b8\uc774 \uc544\ub2c8\ub2e4.<\/figcaption><\/figure><\/div>\n\n\n


\u3000\uc815\ub155 \ube14\ub799\ud640\uc744 \ub208\uc73c\ub85c \ubcfc \uc218\ub294 \uc5c6\ub294 \uac83\uc77c\uae4c. \ube14\ub799\ud640\ub85c \ub4e4\uc5b4\uac00 \ubc84\ub9ac\ub294 \ube5b\uc740 \ubab0\ub77c\ub3c4 \uadf8 \uc8fc\ubcc0\uc744 \ud718\uac10\uc544 \ube60\uc838\ub098\uc624\ub294 \ube5b\uc744 \uc6b0\ub9ac\uac00 \ud655\uc778\ud560 \uc218\ub294 \uc5c6\uc744\uae4c. \ubaa8\ub4e0 \uac83\uc744 \ube68\uc544\ub4e4\uc778\ub2e4\ub294 \uc0ac\ub78c\ub4e4\uc758 \uc778\uc2dd\uacfc \ub2e4\ub974\uac8c \ube14\ub799\ud640 \uc8fc\ubcc0\uc5d0\ub294 \uc0c1\ub2f9\ud788 \ub9ce\uc740 \uac83\uc774 \ub3cc\uace0 \uc788\ub2e4. \ubb3c\uc9c8\uc774 \ube60\ub978 \uc18d\ub3c4\ub85c \ud68c\uc804\ud558\uba74\uc11c \uac15\ub82c\ud55c \ube5b\uc744 \ubfdc\uc5b4\ub0b4\ub294 \uac15\ucc29\uc6d0\ubc18\uc774 \uc788\ub2e4. \uadf8\ub9ac\uace0 \uadf8\ubcf4\ub2e4 \ub354 \uc548\ucabd, \ubb3c\uc9c8\uc774 \ub2ff\uc744 \uc218 \uc5c6\ub294 \uacf3\uc5d0\ub294 \ube5b\uc774 \uc874\uc7ac\ud55c\ub2e4. \uc9c0\uad6c\uac00 \ud0dc\uc591 \uc8fc\ubcc0\uc744 \uacf5\uc804\ud558\ub4ef \uc544\uc2ac\uc544\uc2ac\ud55c \uc911\ub825 \ud3c9\ud615\uc744 \uc720\uc9c0\ud558\uba74\uc11c \ube14\ub799\ud640\uc744 \ub3cc\uace0 \uc788\ub294 \ube5b\uc758 \uace0\ub9ac. \ube5b\uc758 \uace0\ub9ac\uac00 \uc720\uc9c0\ub418\ub294 \uada4\ub3c4\ub294 \ud56d\uc0c1 \uc77c\uc815\ud558\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc5d0 \uc774\uacf3\uc5d0 \uba38\ubb3c\ub358 \ube5b\uc740 \ube68\ub824\ub4e4\uc5b4\uac00\uac70\ub098 \ud295\uaca8\ub098\uc640 \uc6b0\ub9ac\ub97c \ud5a5\ud574 \uc62c \uc218\ub3c4 \uc788\ub2e4. \uc5b4\uca0c\uac74 \ube14\ub799\ud640 \uc8fc\ubcc0\uc5d0\uc11c\ub294 \ube5b\uc774 \ub098\uc628\ub2e4. \uc6b0\ub9ac\uac00 \ubcfc \uc218 \uc788\ub294 \uc7ac\ub8cc\uac00 \uc788\ub294 \uac83\uc774\ub2e4. \uc774\uc81c \uadf8 \ube5b\uc744 \ud5a5\ud574 \ub208\uc744 \ub3cc\ub824\uc57c \ud55c\ub2e4.
<\/p>\n\n\n

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NASA\uc5d0\uc11c \uc81c\uacf5\ud55c \ube14\ub799\ud640\uc758 \uac1c\uc694. \uc911\uc2ec \ube14\ub799\ud640\uc758 \uadf8\ub9bc\uc790 \ubc14\ub85c \ubc14\uae65\uc5d0 \ube5b\uc758 \uace0\ub9ac(photon ring)\uac00 \uc788\ub2e4.<\/figcaption><\/figure><\/div>\n\n\n


\u3000\ub9c9\uc0c1 \ub098\uc624\ub294 \ube5b\uc774 \uc788\ub2e4\uace0 \ud558\ub354\ub77c\ub3c4 \uc6b0\ub9ac\uc5d0\uac8c \ub3c4\ub2ec\ud558\ub294 \uc591\uc774 \ub108\ubb34 \uc801\uc5b4 \uad6c\ubcc4\ud558\uae30 \uc5b4\ub824\uc6b4 \uc218\uc900\uc774\ub77c\uba74 \uc77c\ubc18\uc801\uc778 \ub208(\ub9dd\uc6d0\uacbd)\uc73c\ub85c\ub294 \uad00\uce21\uc774 \ubd88\uac00\ub2a5\ud558\ub2e4. \ub9dd\uc6d0\uacbd\uc774 \ub354 \uc791\uc740 \ubb3c\uccb4\ub97c \ubcf4\uae30 \uc704\ud574\uc11c\ub294 \ub354 \ucee4\ub2e4\ub780 \uad6c\uacbd\uc774 \ud544\uc694\ud558\ub2e4. \uc6b0\ub9ac\uc740\ud558 \uc911\uc2ec \ube14\ub799\ud640\uc744 \ub9cc\ub098\uae30 \uc704\ud574\uc11c\ub294 \uc9c0\uad6c\uc5d0\uc11c \ub2ec\uc5d0 \ub5a8\uc5b4\uc9c4 \ub3c4\ub11b \uc815\ub3c4\ub97c \uad6c\ubcc4\ud560 \uc218 \uc788\uc5b4\uc57c \ud588\ub2e4. \uadf8\uac78 \ud655\uc778\ud558\uae30 \uc704\ud574\uc11c\ub294 \uadf8\ub0e5 \ud070 \uc218\uc900\uc774 \uc544\ub2c8\ub77c \u2018\uc9c0\uad6c \ud06c\uae30\u2019\uc758 \ub9dd\uc6d0\uacbd\uc774 \ud544\uc694\ud588\ub2e4. \uc9c0\uad6c\uc5d0 \uc788\ub294 \uc7ac\ub8cc\ub97c \uac00\uc9c0\uace0 \uc9c0\uad6c \ud06c\uae30\uc758 \ub9dd\uc6d0\uacbd\uc744 \ub9cc\ub4e0\ub2e4? \uc790\ubcf8\uc758 \ubb38\uc81c \uc774\uc804\uc5d0 \ubb3c\ub9ac\uc801\uc73c\ub85c \ubd88\uac00\ub2a5\ud574 \ubcf4\uc774\ub294 \ubbf8\uc158\uc774\uc5c8\ub2e4.<\/p>\n\n\n\n

\u3000\uc774 \ubb38\uc81c\uc758 \ud574\ub2f5\uc740 \uc0ac\uc2e4 \uacfc\ud559\uc790\ub4e4\uc774 \uc798 \uc54c\uace0 \uc788\uc5c8\ub2e4. \uc774\ubbf8 \uc0ac\uc6a9\ud558\uace0 \uc788\ub294 \uae30\uc220\uc758 \uc0ac\uc774\uc988\ub97c \ud0a4\uc6b0\uba74 \ub418\ub294 \uc77c\uc774\uc5c8\ub2e4. \ucd08\uc7a5\uae30\uc120 \uc804\ud30c\uac04\uc12d\uacc4(VLBI – Very Long Baseline Interferometry)\ub77c \ubd88\ub9ac\ub294 \uc774 \uae30\uc220\uc740 1974\ub144 \ub178\ubca8\uc0c1 \uc218\uc0c1\uc790\uc778 \ub9c8\ud2f4 \ub77c\uc77c\uc774 \uc774\ubbf8 \uc81c\uc548\ud55c \uad00\uce21 \ubc29\ubc95\uc774\uc5c8\ub2e4. \uc804\ud30c\uac04\uc12d\uacc4\ub294 \uc11c\ub85c \uba40\ub9ac \ub5a8\uc5b4\uc9c4 \uc804\ud30c\ub9dd\uc6d0\uacbd\uc744 \uc11c\ub85c \uc5f0\uacb0\ud574 \uac00\uc0c1\uc758 \uac70\ub300\ud55c \uc804\ud30c\ub9dd\uc6d0\uacbd\uc73c\ub85c \uc0ac\uc6a9\ud558\ub294 \uac83\uc774\ub2e4. \uac01\uac01\uc758 \ub9dd\uc6d0\uacbd\uc774 \ub3c5\ub9bd\uc801\uc73c\ub85c \uad00\uce21\ud55c \ud55c \ub300\uc0c1\uc758 \ub370\uc774\ud130\ub97c \ud569\uce58\ub294 \uae30\uc220\uc778\ub370 \uc774\ub97c \uad6c\ud604\ud558\uae30 \uc704\ud574\uc11c\ub294 \uac01 \ub9dd\uc6d0\uacbd\uc758 \uad00\uce21 \uc790\ub8cc\uc5d0 \ucd08\uc815\ubc00 \uc2dc\uac04 \uc815\ubcf4\uac00 \uac19\uc774 \uae30\ub85d\ub418\uc5b4\uc57c \ud55c\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub9dd\uc6d0\uacbd\ub4e4 \uc0ac\uc774\uc758 \uac70\ub9ac\uc640 \uae30\ub85d\ub41c \uc2dc\uac04 \ucc28\uc774\ub97c \ubcf4\uc815\ud558\ub294 \uac83\uc774\ub2e4. \uc774 \ub9dd\uc6d0\uacbd \uc0ac\uc774\ub97c \ub300\ub959 \uc218\uc900\uc73c\ub85c \ub298\ub824\ubc84\ub9b0 VLBI\ub294 \uc5bc\ud54f \ubcf4\uba74 \uad6c\ud604\ud558\uae30 \ud798\ub4e4 \uac83\ucc98\ub7fc \ubcf4\uc774\uc9c0\ub9cc \uc774\ubbf8 1989\ub144 \uc131\uacf5\uc801\uc778 \uad00\uce21\uc744 \uc9c4\ud589\ud588\uc5c8\ub2e4. \uadf8\ub807\ub2e4\uba74 \ub300\ub959 \uc218\uc900\uc758 \ub9dd\uc6d0\uacbd \uac04 \uac70\ub9ac\ub97c \ub354 \uba40\ub9ac \ub298\ub824\ubc84\ub9ac\uba74 \uc5b4\ub5bb\uac8c \ub420\uae4c? \uc9c0\uad6c \uacf3\uacf3\uc5d0 \uc704\uce58\ud55c \ub300\ud615 \uc804\ud30c\ub9dd\uc6d0\uacbd\uc744 \ud558\ub098\ub85c \uc5f0\uacb0\ud55c\ub2e4\uba74 \uadf8 \uc790\uccb4\uac00 \uc9c0\uad6c \ud06c\uae30 \ub9dd\uc6d0\uacbd\uc774 \ub418\ub294 \uac83\uc774 \uc544\ub2cc\uac00. \ube14\ub799\ud640\uc744 \ubcf4\uae30 \uc704\ud55c \ub208\uc744 \ub9cc\ub4e4 \uc218 \uc788\uac8c \ub418\uc5c8\ub2e4.
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VLBI\uc758 \uac1c\uc694. \ucc9c\uccb4\uae4c\uc9c0\uc758 \uac70\ub9ac\uac00 \uac01 \ub9dd\uc6d0\uacbd\ub9c8\ub2e4 \uc870\uae08\uc529 \ub2e4\ub974\uae30 \ub54c\ubb38\uc5d0 \uc2dc\uac04 \ucc28\uc774\uac00 \uc0dd\uae34\ub2e4.<\/figcaption><\/figure><\/div>\n\n\n


\u3000\uc774\ub860 \uc0c1\uc73c\ub85c \uac00\ub2a5\ud558\ub354\ub77c\ub3c4 \uc804 \uc138\uacc4\uc5d0 \uc788\ub294 \ub9dd\uc6d0\uacbd\uc744 \ub300\uc0c1\uc73c\ub85c \uc9c4\ud589\ud558\ub294 \ud504\ub85c\uc81d\ud2b8\uc778 \ub9cc\ud07c \uad6d\uc81c\uc801 \ud611\ub825\uacfc \uc790\uae08\uc774 \ud544\uc218\uc600\ub2e4. MIT\uc758 \uc138\ud37c\ub4dc \ub3cc\uba3c\uacfc \ub124\ub35c\ub780\ub4dc \ub77c\ub4dc\ubc14\uc6b0\ub4dc \ub300\ud559\uc758 \ud558\uc774\ub178 \ud314\ucf00\uac00 \uc911\uc2ec\uc774 \ub41c \uc774 \uc5f0\uad6c\ud300\uc740 \uc791\uc740 \uaddc\ubaa8\ub85c \uad00\uce21\uc744 \uc9c4\ud589\ud558\uba74\uc11c \uc790\uc2e0\ub4e4\uc758 \uc544\uc774\ub514\uc5b4\ub97c \ud64d\ubcf4\ud588\ub2e4. \uc774 \uacfc\uc815\uc5d0\uc11c \uc5f0\uad6c\ub97c \uc870\uae08 \ub354 \ud64d\ubcf4\ud558\uae30 \uc704\ud574 \uc774\ub984\ub3c4 \uc0ac\uac74\uc758 \uc9c0\ud3c9\uc120 \ub9dd\uc6d0\uacbd(Event Horizon Telescope)\ub85c \ubc14\uafd4 \ubd80\ub974\uac8c \ub418\uc5c8\ub2e4. \ubbf8\uad6d, \uc720\ub7fd\uc744 \uac00\ub9ac\uc9c0 \uc54a\uace0 \uc790\uae08\uc744 \ubaa8\uc544 \uc628 \uc5f0\uad6c\ud300\uc740 \uadf8 \ud06c\uae30\ub3c4 \ubc29\ub300\ud574\uc84c\ub2e4. 2014\ub144 \ub9d0 EHT\uc758 \ub0b4\ubd80 \uc870\uc9c1 \ud615\ud0dc\uac00 \uc5b4\ub290 \uc815\ub3c4 \ub4dc\ub7ec\ub0ac\ub2e4. \uadf8\ub9ac\uace0 2016\ub144. \uc720\ub7fd, \ubbf8\uad6d, \uc544\uc2dc\uc544, \uba55\uc2dc\ucf54, \uce90\ub098\ub2e4 \ub3c4\ud569 13\uac1c\uc758 \uae30\uad00, 200\uc5ec \uba85\uc758 \uc5f0\uad6c\uc9c4\uc774 \ubaa8\uc778 \uac70\ub300 \ud300\uc774 \uacb0\uc131\ub418\uc5c8\ub2e4. (\uc774 \uaddc\ubaa8\ub294 \uc774\ud6c4 300\uba85\uc744 \ub3cc\ud30c\ud558\uac8c \ub41c\ub2e4.)
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2017\ub144 \uad00\uce21 \ub2f9\uc2dc EHT\uc758 \uc704\uce58\ub97c \ud45c\uc2dc\ud55c \uc9c0\ub3c4<\/figcaption><\/figure><\/div>\n\n\n


\u3000\uae30\uc874\uc5d0 \uc870\uae08\uc529 \uc6b4\uc6a9\ud558\ub358 EHT\ub294 \uc774\uc81c \ubaa9\ud45c\ubb3c\uc744 \uc815\ud588\ub2e4. \uc6b0\ub9ac\uc740\ud558 \uc911\uc2ec\uc758 Sgr A* \ubfd0 \uc544\ub2c8\ub77c M87\uc740\ud558\ub3c4 \uaca8\ub0e5\ud558\uae30\ub85c \ud55c \uac83\uc774\ub2e4. Sgr A*\uac00 \uc6b0\ub9ac\ud55c\ud14c \uac00\uc7a5 \uac00\uae4c\uc6b4 \uac70\ub300 \ube14\ub799\ud640\uc784\uc740 \ud2c0\ub9bc\uc5c6\uc9c0\ub9cc \ub354 \uba3c \uac70\ub300\uc740\ud558 \uc18d \ube14\ub799\ud640\uc5d0 \ube44\ud558\uba74 \uc791\uc740 \ud3b8\uc5d0 \uc18d\ud55c\ub2e4. M87\uc740\ud558\uc5d0 \uc704\uce58\ud55c \ube14\ub799\ud640\uc758 \uc9c8\ub7c9\uc740 Sgr A*\uc758 1000\ubc30\uc5d0 \ub2ec\ud55c\ub2e4. \uc774\ub807\uac8c \uac70\ub300\ud55c M87 \ube14\ub799\ud640\uc740 \ubcc0\ud654\uac00 \ud06c\uc9c0 \uc54a\ub2e4. \ubc18\uba74 \uc6b0\ub9ac\uc740\ud558 \uc18d\uc5d0 \uc704\uce58\ud55c \ub140\uc11d\uc740 \ubab8\uc9d1\uc774 \uc791\uc740 \ub9cc\ud07c \ub9d0\uc37d\uafb8\ub7ec\uae30\ub77c \ubcfc \uc218 \uc788\ub2e4. \uce74\uba54\ub77c \uc55e\uc5d0 \uc26c\uc9c0 \uc54a\uace0 \uc6c0\uc9c1\uc774\ub294 \uc544\uc774\ub97c \uae54\ub054\ud558\uac8c \ucc0d\ub294 \uac83\uc740 \uc26c\uc6b4 \uc77c\uc774 \uc544\ub2c8\ub2e4. \uacb0\uad6d \uba40\ub9ac \uc788\uc9c0\ub9cc M87 \uc18d \uc740\ud558\uac00 \ucd2c\uc601\ud558\uae30\uc5d0\ub294 \ub354 \uc88b\uc740 \ucc9c\uccb4\uc77c \uc218 \uc788\ub294 \uac83\uc774\ub2e4.
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M87\uc740\ud558\uc758 \ubaa8\uc2b5<\/figcaption><\/figure><\/div>\n\n\n


\u3000\ubaa9\ud45c\ub3c4 \ub098\uc654\ub2e4. 2017\ub144 3\uc6d4 \ub9d0. EHT\uc758 \ucc9c\ubb38\ud559\uc790\ub4e4\uc774 \uce60\ub808, \ud558\uc640\uc774, \uc2a4\ud398\uc778, \uba55\uc2dc\ucf54, \uc560\ub9ac\uc870\ub098, \ub0a8\uadf9\uc5d0 \uc704\uce58\ud55c \ub9dd\uc6d0\uacbd\uc744 \ud5a5\ud574 \ub5a0\ub0ac\ub2e4. \uadf8\ub4e4\uc5d0\uac8c \uc8fc\uc5b4\uc9c4 \uc2dc\uac04\uc740 4\uc6d4 4\uc77c\ubd80\ud130 \ucd5c\ub300 10\uc77c\uc774\uc5c8\ub2e4. \uadf8 \uc548\uc5d0 \uc218\ub9ce\uc740 \uc694\uc18c\uac00 \ub9de\uc544 \ub5a8\uc5b4\uc838\uc57c \ud588\ub2e4. \ub2e8\uc77c \ub9dd\uc6d0\uacbd\uc73c\ub85c \uad00\uce21\ud560 \ub54c\ub294 \ud574\ub2f9 \uc7a5\uc18c\uc758 \ub0a0\uc528\ub9cc \ubcf4\uba74 \ub41c\ub2e4. \ud558\uc9c0\ub9cc \uc774 \ubbf8\uc158\uc740 \uc804 \uc138\uacc4 8\uac1c \uc9c0\uc5ed\uc758 \ub0a0\uc528\ub97c \ubaa8\ub450 \uccb4\ud06c\ud574\uc57c \ud588\ub2e4. \uae30\uacc4\uc5d0\uc11c \ubc8c\uc5b4\uc9c8 \uc218 \uc788\ub294 \uc624\ub958 \uc5ed\uc2dc \ud55c \ub300\ub97c \uc4f8 \ub54c\ubcf4\ub2e4 \ud6e8\uc52c \ub354 \ub9ce\uc544\uc9d0\uc740 \ub2f9\uc5f0\ud588\ub2e4. \ub2e4\ud589\ud788 \ud558\ub298\uc774 \uc5f0\uad6c\uc9c4\uc758 \uc190\uc744 \uc7a1\uc544\uc92c\ub2e4. \ub0a0\uc528\ub294 \ub098\uc058\uc9c0 \uc54a\uc558\ub2e4. \uc774\uc81c \ud558\ub298\uc744 \uc62c\ub824\ub2e4 \ubcfc \uc2dc\uac04\uc774\uc5c8\ub2e4.<\/p>\n\n\n\n

\u3000\uad00\uce21\uc740 \ucd1d 5\uc77c \ub3d9\uc548 \uc9c0\uc18d\ub418\uc5c8\ub2e4. \uc911\uc694 \ucc9c\uccb4\uc600\ub358 M87\uacfc Sgr A* \ubfd0 \uc544\ub2c8\ub77c \ub300\uc870\uad70\uc73c\ub85c \ud65c\uc6a9\ud574\uc57c \ud558\ub294 \ud018\uc774\uc0ac\uac19\uc740 \ucc9c\uccb4\ub97c \ud3ec\ud568\ud558\uc5ec \uae34 \uad00\uce21\uc774 \uc9c4\ud589\ub418\uc5c8\ub2e4. \uac01 \ub370\uc774\ud130\ub294 \uc6d0\uc790\uc2dc\uacc4\ub97c \ud1b5\ud574 \uae30\ub85d\ub41c \uc2dc\uac04\uacfc \ud568\uaed8 \uc800\uc7a5\ub418\uc5c8\ub2e4. \uc5f0\uad6c\uc9c4\uc740 \ucd2c\uc601 \ub0b4\ub0b4 \uac70\uc758 \ubc24\uc0d8 \uc791\uc5c5\uc744 \ud558\uba74\uc11c \ubcf4\ub0c8\ub2e4. \uae34 \uc2dc\uac04 \ub9dd\uc6d0\uacbd\uc774 \uc788\ub294 \uc804\uc5ed\uc5d0\uc11c \uad00\uce21\uc774 \uac00\ub2a5\ud588\ub2e4\ub294 \ucee4\ub2e4\ub780 \ucd95\ubcf5\uc744 \ubc1b\uc558\uc9c0\ub9cc \uc77c\uc740 \ub05d\ub098\ub824\uba74 \ud55c\ucc38 \uba40\uc5c8\ub2e4. \ub2f9\uc7a5 \ub370\uc774\ud130\uac00 \uc800\uc7a5\ub41c \ub514\uc2a4\ud06c\ub9cc \ud1a4 \ub2e8\uc704\uc600\ub2e4. (\ucd1d \ub370\uc774\ud130\ub9cc 4\ud398\ud0c0\ubc14\uc774\ud2b8 \uc218\uc900\uc774\uc5c8\ub2e4.) \ub108\ubb34 \ub370\uc774\ud130\uac00 \ub9ce\uc740 \ub098\uba38\uc9c0 \ubc31\uc5c5\uc740 \uafc8\ub3c4 \uafb8\uc9c0 \ubabb\ud588\ub2e4. \ud574\ub2f9 \ub514\uc2a4\ud06c\ub294 \ud0dd\ubc30\ub85c \ubc30\uc1a1\ud558\uc5ec \ud55c \uacf3\uc73c\ub85c \ubaa8\uc544\uc57c \ud588\ub2e4. \ub9cc\uc57d \ud55c \uacf3\uc774\ub77c\ub3c4 \ub370\uc774\ud130\uac00 \ubd84\uc2e4\ub41c\ub2e4? 5\uc77c\uc758 \uafc8\uc774 \uc544\ub2c8\ub77c \uc218\uc2ed\ub144\uc758 \uafc8\uc774 \ub0a0\uc544\uac08 \uc704\uae30\uc600\ub2e4. \ud0dd\ubc30\ubd80\ud130 \uc704\uae30\uc5d0 \ube60\uc9c4 \ucc9c\ubb38\ud559\uc790\ub77c\ub2c8 \uc774\uac8c \ubb34\uc2a8 \ud669\ub2f9\ud55c \uc77c\uc774\ub780 \ub9d0\uc778\uac00.
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\ub370\uc774\ud130\uac00 \uc800\uc7a5\ub41c \ud558\ub4dc\ub514\uc2a4\ud06c\uc758 \ubaa8\uc2b5<\/figcaption><\/figure><\/div>\n\n\n


\u3000\ub2e4\ud589\ud788 \uac00\uc7a5 \uad50\ud1b5\uc774 \uc88b\uc9c0 \uc54a\uc740 \ub0a8\uadf9\uc5d0\uc11c \ub0a0\uc544\uc628 \ub514\uc2a4\ud06c\ub3c4 \uc815\uc0c1\uc801\uc73c\ub85c \ub3c4\ucc29\ud588\ub2e4. \uc774\uc81c \ub370\uc774\ud130\ub97c \ud569\uccd0 \ud558\ub098\uc758 \uc774\ubbf8\uc9c0\ub97c \ub9cc\ub4e4\uc5b4\uc57c \ud558\ub294\ub370 \uc774 \uc791\uc5c5 \ub610\ud55c \ub09c\uad00\uc774\uc5c8\ub2e4. EHT\ub294 \uac70\ub300\ud55c \ub9dd\uc6d0\uacbd\uc5d0 \uc5b4\ub9c8\uc5b4\ub9c8\ud558\uac8c \ub9ce\uc740 \uad6c\uba4d\uc744 \ub0b8 \ud615\ud0dc\ub77c \ubcfc \uc218 \uc788\ub2e4. \uadf8\ub098\ub9c8 \uc810\ucc98\ub7fc \uc788\ub294 \uac01 \ub9dd\uc6d0\uacbd\uc774 \uc9c0\uad6c\uc758 \uc790\uc804\uc5d0 \uc758\ud574 \uc218\uc9d1\ud55c \ub370\uc774\ud130\uc758 \ubc94\uc704\uac00 \uc870\uae08\uc774\ub098\ub9c8 \ub113\uc5b4\uc84c\ub2e4\uace0 \ud574\ub3c4 \uad6c\uba4d\ub09c \ubd80\ubd84\uc774 \ucc44\uc6cc\uc9c4 \ubd80\ubd84\ubcf4\ub2e4 \ub113\ub2e4\ub294 \uac83\uc740 \ubcc0\ud568\uc5c6\ub2e4. \uc774 \ubd80\ubd84\uc744 \ub9e4\uc6cc\uc57c \ud558\ub294 \uac83\uc740 \ud504\ub85c\uadf8\ub798\uba38\ub4e4\uc758 \uc54c\uace0\ub9ac\uc998\uc774\uc5c8\ub2e4. \uac01\uae30 \ub2e4\ub978 \ud300\uc5d0\uac8c \ub611\uac19\uc740 \ub370\uc774\ud130\ub97c \uc8fc\uace0 \uc774\ubbf8\uc9c0\ud654 \uc791\uc5c5\uc744 \uc2dc\uc791\ud588\ub2e4. \ub370\uc774\ud130\uc5d0 \uac19\uc774 \uc800\uc7a5\ub41c \uc2dc\uac01 \uae30\ub85d\uc744 \ubcf4\uace0 \ud558\ub098\ud558\ub098 \uc774\ubbf8\uc9c0\ub97c \ucc3e\uc544\uac04\ub2e4. \uac70\ub300\ud55c \ud37c\uc990\uc774 \uc794\ub729 \ubfcc\ub824\uc9c4 \ubc14\ub2e5\uc5d0\uc11c \uae38\uc744 \ub9cc\ub4e4\uc5b4\uc57c \ud588\ub2e4. \uac01 \uc774\ubbf8\uc9c0 \ud300\uc740 \uc11c\ub85c \ub2e4\ub978 \uc54c\uace0\ub9ac\uc998\uc744 \uc774\uc6a9\ud574\uc11c \uacb0\uacfc\ubb3c\uc744 \ub9cc\ub4e4\uae30\ub85c \ud588\ub2e4. \uadf8\ub9ac\uace0 \uc808\ub300\ub85c \uac01 \ud300\uc740 \ub2e4\ub978 \ud300\uc774 \uc791\uc5c5 \uc911\uc778 \uc774\ubbf8\uc9c0\ub97c \ubcfc \uc218 \uc5c6\uc5c8\ub2e4. \ub2e4\ub978 \uc0ac\uc9c4\uacfc \ub2e4\ub974\uac8c \ube14\ub799\ud640\uc740 \uc774\uc804\uc5d0 \uc5c6\ub358 \uc774\ubbf8\uc9c0\uc600\ub2e4. \ub2f5\uc548\uc9c0\uac00 \uc5c6\ub294 \ubb38\uc81c\ub97c \ud480\uc5b4\uc57c \ud558\ub294 \uacfc\uc815\uc5d0\uc11c \uc790\uc2e0\ub4e4\uc774 \ub9e4\uc6b4 \uad6c\uba4d\uc774 \uc2e4\uc81c \ube14\ub799\ud640\uc774\ub77c\uace0 \ud655\uc2e0\ud560 \uc218 \uc788\uc744\uae4c? \uadf8\ub7ec\uae30 \uc704\ud574\uc11c \uc11c\ub85c \ub2e4\ub978 \ud300\uc774 \ub2e4\ub978 \uae38\uc744 \ud1b5\ud574 \uacb0\uacfc\ubb3c\uc744 \ub9cc\ub4e4\uc5c8\ub294\ub370 \ub9cc\uc57d \uadf8 \uc774\ubbf8\uc9c0\uac00 \uc11c\ub85c \ub9e4\uc6b0 \ud761\uc0ac\ud558\ub2e4\uba74? \ub2f9\uc5f0\ud558\uac8c\ub3c4 \uc774\ubbf8\uc9c0\uc758 \uc2e0\ub8b0\ub3c4\uac00 \uc62c\ub77c\uac08 \uc218 \ubc16\uc5d0 \uc5c6\ub2e4. 2018\ub144 6\uc6d4\uc5d0 \uc2dc\uc791\ub41c \uc774\ubbf8\uc9c0 \uc791\uc5c5\uc758 \uacb0\uacfc\ub294 \uc131\uacf5\uc801\uc774\uc5c8\ub2e4. \ubaa8\ub4e0 \ud300\uc758 \uc774\ubbf8\uc9c0 \ub9e4\uce6d\ub960\uc774 \ub9e4\uc6b0 \ub192\uc558\ub358 \uac83\uc774\ub2e4. \ube44\uc5b4\uc788\ub294 \ud37c\uc990 \uc870\uac01\uc774 \uc81c\ub300\ub85c \ub9de\ucdb0\uc84c\ub2e4.<\/p>\n\n\n\n

\u3000\uc5f0\uad6c\ud300\uc740 \uad00\ub828 \ub17c\ubb38 \uc791\uc5c5\uc744 \ub05d\ub0b4\uace0 2019\ub144 4\uc6d4 11\uc77c. \uc804\uc138\uacc4 6\uacf3\uc5d0\uc11c \ub3d9\uc2dc\uc5d0 \uae30\uc790\ud68c\uacac\uc744 \uc5f4\uc5c8\ub2e4. \uadf8\ub9ac\uace0 \uadf8 \uc7a5\uc18c\uc5d0\uc11c M87 \uae4a\uc740 \uacf3\uc5d0 \uc228\uc5b4 \uc788\ub358 \ubb34\uc5b8\uac00\ub97c \ubcf4\uc600\ub2e4. \uc8fc\ud64d\ube5b \uc6d0 \uc548\uc5d0 \uc228\uc5b4 \uc788\ub294 \uac80\uc740 \uad6c\uba4d. \uc218\ub9ce\uc740 \uacfc\ud559\uc790\uac00 \ucc3e\uc544\ub2e4\ub154\ub358 \uadf8 \ube14\ub799\ud640\uc774 \uc790\uc2e0\uc758 \ud754\uc801\uc744 \ubcf4\uc5ec\uc900 \uc5ed\uc0ac\uc801\uc778 \uc7a5\uba74\uc774\uc5c8\ub2e4.
<\/p>\n\n\n

\n
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M87 \ube14\ub799\ud640\uc758 \ubaa8\uc2b5. \uc5c4\ubc00\ud558\uac8c \ub530\uc9c0\uc790\uba74 \ube14\ub799\ud640 \uc790\uccb4\ub97c \ucc0d\uc5c8\ub2e4\uae30\ubcf4\ub2e4 \ube14\ub799\ud640\ub85c \uc778\ud574 \ud718\uc5b4\uc9c4 \uc8fc\ubcc0\ubd80\uc758 \ube5b\uc744 \ucc0d\uc740 \uac83\uc774\ub2e4. \uadf8\ub798\uc11c \uc774\ub97c \ube14\ub799\ud640\uc758 \uadf8\ub9bc\uc790\ub97c \ucc0d\uc5c8\ub2e4\uace0 \ub9d0\ud558\uae30\ub3c4 \ud55c\ub2e4.<\/figcaption><\/figure><\/div>\n\n\n


\u3000EHT \uc5f0\uad6c\ud300\uc740 \uc9c0\uae08\ub3c4 \ud65c\ubc1c\ud788 \ud65c\ub3d9 \uc911\uc5d0 \uc788\ub2e4. 2019\ub144 \ubc1c\ud45c \uc774\ud6c4 2021\ub144\uc5d0\ub294 Sgr A*\uc758 \ubaa8\uc2b5\uc744 \ubc1c\ud45c\ud588\uc73c\uba70 \uac01 \ube14\ub799\ud640\uc758 \ub2e4\ub978 \ubaa8\uc2b5 \uc5ed\uc2dc \uafb8\uc900\ud558\uac8c \ubcf4\uc5ec\uc8fc\uace0 \uc788\ub2e4. \ud300 \uc790\uccb4\uc758 \uaddc\ubaa8\ub3c4 \ucd08\uae30\ubcf4\ub2e4 \ud6e8\uc52c \ucee4\uc84c\uc73c\uba70 \uc6b0\ub9ac\ub098\ub77c\uc5d0 \uc788\ub294 KVN \uc804\ud30c \uac04\uc12d\uacc4\ub3c4 \uc774 \uc5f0\uad6c\uc5d0 \ud55c \ubaab\uc744 \ud574\ub0b4\uace0 \uc788\ub2e4. \uc0ac\uc9c4 \uc790\uccb4 \ubfd0 \uc544\ub2c8\ub77c \uc218\uc9d1\ub41c \ub370\uc774\ud130\ub294 \ube14\ub799\ud640 \uc5f0\uad6c\uc5d0 \uc88b\uc740 \uc790\ub8cc\uac00 \ub418\uc5b4\uc8fc\uace0 \uc788\uc73c\uba70 \ud6c4\uc18d \uad00\uce21\uc744 \ud1b5\ud574 M87 \ube14\ub799\ud640\uc774 \uc870\uae08\uc529 \ubcc0\ud654\ud558\ub294 \ubaa8\uc2b5\ub3c4 \ud3ec\ucc29\ud560 \uc218 \uc788\uc5c8\ub2e4. \uac80\uc740 \ubca0\uc77c \ub108\uba38\uc5d0 \uc874\uc7ac\ud558\ub358 \ube14\ub799\ud640\uc758 \ube44\ubc00\uc5d0 \ud55c \uac78\uc74c \ub2e4\uac00\uac08 \uc218 \uc788\ub294 \uc5ec\uc9c0\ub97c \ucc3e\uc544\ub0b8 \uac83\uc774\ub2e4.
<\/p>\n\n\n

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1\ub144 \ucc28\uc774\ub97c \ub450\uace0 \uad00\uce21\ud55c M87 \ube14\ub799\ud640\uc758 \ubaa8\uc2b5. \ubc1d\uc740 \ubd80\ubd84\uc758 \uc704\uce58\uac00 \uc57d\uac04 \ubcc0\ud588\ub2e4.<\/figcaption><\/figure><\/div>\n\n\n


\u3000\ube14\ub799\ud640\uc740 \ucc9c\ubb38\ud559\uc774\ub77c\ub294 \ud559\ubb38\uc744 \uc798 \ubaa8\ub974\ub294 \uc0ac\ub78c\ub3c4 \ud55c \ubc88\ucbe4\uc740 \ub4e4\uc5b4\ubd24\uc744 \uc544\uc8fc \uc778\uae30\uc788\ub294 \ucc9c\uccb4\uc774\ub2e4. \uadf8\ub798\uc11c \uadf8\ub7f0\uc9c0 \ubc1c\ud45c\uc640 \ud568\uaed8 \uc804 \uc138\uacc4\uc758 \uc5b8\ub860\uc740 \ube14\ub799\ud640 \uc0ac\uc9c4\uc744 \ub300\uc11c\ud2b9\ud544 \ud588\uc73c\uba70 \uc0ac\ub78c\ub4e4\uc740 \uc5f4\uad11\ud588\ub2e4. \uc0ac\ub78c\ub4e4\uc758 \ud638\uae30\uc2ec\uc5d0 \ubd88\uc744 \uc9c8\ub7ec\ubc84\ub9b0 \uc774 \uc774\ubbf8\uc9c0\ub294 \ub2e8\uc21c\ud558\uac8c \u2018\ube14\ub799\ud640\uc744 \ucc0d\ub2e4\ub2c8 \ub300\ub2e8\ud558\ub124!\u2019\ub85c \ub05d\ub0b4\uae30\uc5d4 \uc544\uae4c\uc6b4 \uac83\uc774 \ub9ce\ub2e4. \uc774\ub860\uc73c\ub85c \uc874\uc7ac\ud558\ub358 \uac83\uc744 \ud604\uc2e4\ub85c \ub04c\uc5b4\ub0b4 \uc99d\uba85\ud558\ub294 \uacfc\uc815\uc740 \uacfc\ud559\uc5d0\uc11c \uc218\uc5c6\uc774 \uc774\ub904\uc838 \uc628 \uc77c\uc774\uc5c8\ub2e4. \ud558\uc9c0\ub9cc \uc774\ubc88 \ube14\ub799\ud640\uc740 \uc870\uae08 \ud2b9\ubcc4\ud588\ub2e4. \uc774 \uc77c\uc744 \ud574\uacb0\ud558\uae30 \uc704\ud574 \uc804 \uc138\uacc4\uc758 \ud559\uc790\uac00 \uc804 \uc138\uacc4 \ud06c\uae30\uc758 \ub3c4\uad6c\ub97c \uc774\uc6a9\ud558\uc5ec \uc800 \uc6b0\uc8fc\uc758 \uc2ec\uc5f0\uc744 \ub4e4\uc5ec\ub2e4 \ubcf4\uc558\ub2e4. \ub2e8\uc21c\ud788 \ud55c \uc0ac\ub78c\uc758 \ud798\uc744 \ub118\uc5b4 \ub2e4\uc218\uc758 \uc9c0\uc131\uc774 \ub3c4\uc804\ud55c \uc774 \uc5f0\uad6c\ub294 \ud604\uc7ac \uacfc\ud559\uc774, \uadf8\ub9ac\uace0 \uc55e\uc73c\ub85c\uc758 \uacfc\ud559\uc774 \uc5b4\ub5a4 \ubc29\uc2dd\uc73c\ub85c \uc791\ub3d9\ud574\uc57c \ud558\ub294\uc9c0, \uadf8\ub9ac\uace0 \uc798 \uc791\ub3d9\ub418\uc5c8\uc744 \ub54c \uadf8 \uacb0\uacfc\uac00 \uc5b4\ub5a0\ud560\uc9c0 \ubcf4\uc5ec\uc8fc\ub294 \uc88b\uc740 \uad50\ubcf4\uc7ac\ub77c \ud560 \uc218 \uc788\ub2e4. \uc544\ubb34\ub3c4 \ubcfc \uc218 \uc5c6\ub2e4 \ud588\ub358 \uac83\uc744 \u2018\uc6b0\ub9ac\u2019\ub294 \ubcf4\uc558\ub2e4. \ub2e4\uc74c\uc740 \uc5bc\ub9c8\ub098 \ub354 \uae4a\uc740 \uc2ec\uc5f0\uc744 \ubcfc \uc218 \uc788\uc744 \uac83\uc778\uac00. \uadf8 \uc18d\uc5d0 \uc228\uc740 \ube44\ubc00\uc744 \ud5a5\ud574 \u2018\uc6b0\ub9ac\u2019\ub294 \uc810\uc810 \ub354 \ub2e4\uac00\uac00\uace0 \uc788\ub294 \uc911\uc774\ub2e4.
<\/p>\n\n\n

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EHT\uc5d0 \ucc38\uc5ec\ud55c \ub9dd\uc6d0\uacbd \uc911 SPT(\ub0a8\uadf9)\uc758 \ubaa8\uc2b5<\/figcaption><\/figure><\/div>\n\n
\n
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EHT\uc5d0 \ucc38\uc5ec\ud55c \ub9dd\uc6d0\uacbd \uc911 ALMA(\uce60\ub808)\uc758 \ubaa8\uc2b5<\/figcaption><\/figure><\/div>\n\n
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EHT\uc5d0 \ucc38\uc5ec\ud55c \ub9dd\uc6d0\uacbd \uc911 JCMT(\ud558\uc640\uc774)\uc758 \ubaa8\uc2b5<\/figcaption><\/figure><\/div>\n\n\n

<\/p>\n\n\n\n

\ucc38\uace0\uc790\ub8cc<\/p>\n\n\n\n

    \n
  1. \ud558\uc774\ub178 \ud314\ucf00, \uc678\ub974\ud06c \ub8b0\uba38(\uae40\uc6a9\uae30, \uc815\uacbd\uc219 \uc5ed). 2023. \uc774\uac83\uc774 \ucd5c\ucd08\uc758 \ube14\ub799\ud640 \uc0ac\uc9c4\uc785\ub2c8\ub2e4. \uc5d0\ucf54\ub9ac\ube0c\ub974<\/li>\n\n\n\n
  2. \uc560\ub098 \ud06c\ub864\ub9ac \ub808\ub529 (\uad8c\uac00\ube44 \uc5ed). 2022. \uc120\uc744 \ub118\ub294 \uacfc\ud559\uc790\ub4e4. \ub2e4\ub978<\/li>\n\n\n\n
  3. \uc6b0\uc885\ud559. 2009. \ube14\ub799\ud640 \uad50\ud5a5\uace1. \ub3d9\ub158\uc0ac\uc774\uc5b8\uc2a4<\/li>\n\n\n\n
  4. \uc815\ud0dc\ud604. 2019. \ube14\ub799\ud640 \uc0ac\uc9c4 \ucc0d\uae30: \ucd08\uc7a5\uae30\uc120 \uc804\ud30c\uac04\uc12d\uacc4. HORIZON<\/a><\/li>\n\n\n\n
  5. \ud55c\uad6d\ucc9c\ubb38\uc5f0\uad6c\uc6d0. 2019. \uc0ac\uc0c1 \ucd5c\ucd08\ub85c \uc2e4\uc81c \ube14\ub799\ud640 \uc601\uc0c1 \uc5bb\ub294 \ub370 \uc131\uacf5<\/a><\/li>\n\n\n\n
  6. \ud55c\uad6d\ucc9c\ubb38\uc5f0\uad6c\uc6d0 \uc804\ud30c\ucc9c\ubb38\uc5f0\uad6c\ubcf8\ubd80 \ud648\ud398\uc774\uc9c0<\/a><\/li>\n\n\n\n
  7. EHT \ud648\ud398\uc774\uc9c0<\/a><\/li>\n\n\n\n
  8. \ud53c\ud130 \uac24\ub9ac\uc2a8. 2020. \ube14\ub799\ud640: \uc0ac\uac74\uc758 \uc9c0\ud3c9\uc120\uc5d0\uc11c. \ub137\ud50c\ub9ad\uc2a4<\/li>\n<\/ol>\n\n\n\n

    Copyright 2021. \uc758\uc655\ucc9c\ubb38\uc18c\uc2dd \uae40\uc6a9\ud658 \uc5f0\uad6c\uc6d0 All right reserved.
    dydgks0148@astrocamp.net<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u3000\ud754\ud788 \ub9d0\ud558\ub294 \uc624\uac10 \uc911 \uc2dc\uac01\uc740 \uc778\uccb4 \uac10\uac01 \uc218\uc6a9\uccb4 \uc911 70%\ub97c \ucc28\uc9c0\ud560 \uc815\ub3c4\ub85c \uc911\uc694\ud55c \uc694\uc18c\uc774\ub2e4. \u2018\ubcf8\ub2e4\u2019\ub77c\ub294 \uac83\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc6b0\ub9ac\uc5d0\uac8c \ub108\ubb34 \ub2f9\uc5f0\ud55c … <\/p>\n","protected":false},"author":1,"featured_media":4156,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"_links":{"self":[{"href":"http:\/\/www.uwastrocamp.com\/index.php?rest_route=\/wp\/v2\/posts\/4144"}],"collection":[{"href":"http:\/\/www.uwastrocamp.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.uwastrocamp.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.uwastrocamp.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.uwastrocamp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4144"}],"version-history":[{"count":1,"href":"http:\/\/www.uwastrocamp.com\/index.php?rest_route=\/wp\/v2\/posts\/4144\/revisions"}],"predecessor-version":[{"id":4161,"href":"http:\/\/www.uwastrocamp.com\/index.php?rest_route=\/wp\/v2\/posts\/4144\/revisions\/4161"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.uwastrocamp.com\/index.php?rest_route=\/wp\/v2\/media\/4156"}],"wp:attachment":[{"href":"http:\/\/www.uwastrocamp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4144"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.uwastrocamp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4144"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.uwastrocamp.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}