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A supermassive black hole awakes [PDF]
Active Galaxies Every large galaxy hosts a supermassive black hole at its center, which grows by consuming passing gas or stars. Most are quiescent, but when the black hole is feeding, an accretion disk forms, causing the galaxy nucleus to shine brightly as a quasar. Gezari et al.
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Episodic ejection from super-massive black holes [PDF]
Episodic activity in super-massive black holes is shown by radio galaxies exhibiting ‘double-double’ radio morphologies (Subrahmanyan et al. 1996, Schoenmakers et al. 2000). Spectacular examples showing a renewal of beam activity in the form of new beams
Subrahmanyan, Ravi +2 more
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Formation of supermassive black holes [PDF]
To appear in The Astronomy and Astrophysics Review.
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The spin of supermassive black holes [PDF]
Invited article accepted for publication in the focus issue on astrophysical black holes in Classical and Quantum Gravity, guest editors: D. Merritt and L. Rezzolla.
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Numerous observations have shown that almost all galaxies in our Universe host supermassive black holes (SMBHs), but there is still much debate about their formation and evolutionary processes. Recently, gravitational waves (GWs) have been expected to be
Kazuya Furusawa +3 more
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DO CIRCUMNUCLEAR DENSE GAS DISKS DRIVE MASS ACCRETION ONTO SUPERMASSIVE BLACK HOLES [PDF]
We present a positive correlation between the mass of dense molecular gas (Mdense) of ~ 100 pc scale circumnuclear disks (CNDs) and the black hole mass accretion rate (M_ BH) in total 10 Seyfert galaxies, based on data compiled from the literature and an
Kawakatu Nozomu +2 more
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Supermassive black holes then and now [PDF]
7 pages, to appear in The Proceedings of the Second International LISA Symposium on Graviational Waves, ed.
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Global Understanding of Accretion and Ejection around Black Holes
Accretion and ejection around compact objects, mainly around black holes, both in low mass, and supermassive, is rich and has been studied exhaustively [...]
Santanu Mondal
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No Supermassive Black Hole in M33?
We observed the nucleus of M33, the third-brightest galaxy in the Local Group, with the Space Telescope Imaging Spectrograph at a resolution at least a factor of 10 higher than previously obtained. Rather than the steep rise expected within the radius of gravitational influence of a supermassive black hole, the random stellar velocities showed a ...
Merritt, David +2 more
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A Candidate Runaway Supermassive Black Hole Identified by Shocks and Star Formation in its Wake
The interaction of a runaway supermassive black hole (SMBH) with the circumgalactic medium (CGM) can lead to the formation of a wake of shocked gas and young stars behind it.
Pieter van Dokkum +15 more
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