主題: VLBA 研究 4C +37.11星系 雙黑洞運動 作者: peter 於 2017-06-29 09:04:24 https://www.sciencedaily.com/releases/2017/06/170627114815.htm
超重聯星黑洞 4C +37.11星系 或叫 0402+379 相鄰24光年左右 (https://www.sciencedaily.com/images/2017/06/170627114815_1_540x360.jpg) Artist's conception of the pair of supermassive black holes at the center of the galaxy 0402+379, 750 million light-years from Earth. https://wiwiko.ru/nauka/404-uchenye-vpervye-uvideli-kak-chernye-dyry-vraschayutsya-vokrug-drug-druga.html (https://wiwiko.ru/uploads/posts/2017-06/medium/1498663723_1482589535.jpg) http://www.cnbeta.com/articles/tech/626757.htm 天文学家利用甚大基线射电望远镜阵列,在距离地球 7.5 亿光年的编号为 0402+379 的星系内发现了一对超大质量黑洞,其组合质量是太阳的 150 亿倍,其轨道周期大约为 2.4 万年,天文学家已经对它们观察了十年以上,仍然没有发现最轻微的轨道曲率变化。 => WIKI 好像寫是 15萬年週期 ?? (http://static.cnbetacdn.com/thumb/article/2017/0628/6b27f9a8301d8b2.jpg) (http://static.cnbetacdn.com/article/2017/0628/e7f0ece5c5eb28a.jpg) as of 2006. The separation between the two is 24 light-years or 7.3 parsecs, with an orbital period of 150,000 years. The previous directly observed least separation of supermassive binary black holes was 2,400 light-years . However, quasar OJ 287 is inferred to have a binary supermassive black hole pair with an orbital period of 12 years, 4C +37.11星系 雙黑洞 相隔 24光年但是 15萬年 ? OJ 287 雙黑洞相隔 2400 光年 但是 12 年 ? https://zh.wikipedia.org/wiki/OJ_287 光學的光度曲線顯示OJ287有11-12年的週期變化,最大光度有一個狹宰的雙峰值。 這種變化被認為是另一個超大質量黑洞引起的, 一個質量較小約為一億個MSun的黑洞以11-12年的週期環繞著這個大的黑洞。當小的夥伴在近星點附近穿越大黑洞的吸積盤時就會使光度增加。 https://en.wikipedia.org/wiki/Binary_black_hole quasar PG 1302-102 appears to have a binary black hole with an orbital period of 1900 days |