Fast variability of gamma-ray emission from supermassive black hole binary OJ 287
Keyword(s):
A reduced orbital period for the supermassive black hole binary candidate in the quasar PG 1302-102?
2015 ◽
Vol 452
(3)
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pp. 2540-2545
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2013 ◽
Vol 774
(1)
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pp. 43
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2009 ◽
Vol 697
(2)
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pp. 1621-1633
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Keyword(s):
Keyword(s):