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Dynamics Around Supermassive Black Holes: Extreme-mass-ratio Inspirals as Gravitational-wave Sources

open access: yesThe Astrophysical Journal
Supermassive black holes and their surrounding dense stellar environments nourish a variety of astrophysical phenomena. We focus on the distribution of stellar-mass black holes around the supermassive black hole and the consequent formation of extreme ...
Barak Rom   +3 more
doaj   +1 more source

Super-Eddington Accretion in Quasars

open access: yesUniverse
This review provides an observational perspective on the fundamental properties of super-Eddington accretion onto supermassive black holes in quasars.
Paola Marziani   +7 more
doaj   +1 more source

New Estimates of the Spin and Accretion Rate of the Black Hole M87*

open access: yesThe Astrophysical Journal Letters
In this Letter, we use the imaging results of M87* from the Event Horizon Telescope (EHT) to calculate the rotational velocity of the inner edge of the accretion disk and find a value of ∼0.14 c .
Michael Drew   +4 more
doaj   +1 more source

Supermassive Black Holes at the Center of Galaxies [PDF]

open access: yesarXiv, 2005
This was my final paper for the AST 308 Galaxies class at Michigan State University. Using many sources I was able to compile a moderate amount of information concerning the evidence for, and the formation of Supermassive Black Holes.
arxiv  

Supermassive Black Holes in the Universe [PDF]

open access: yes, 2004
In these lecture notes we will give a very basic introduction to supermassive black holes. We derive the basic luminosity expected for accretion and introduce the Eddington limit. Kinematical evidence for black holes in the centers of galaxies from optical and radio spectroscopy is discussed as well as the link between black holes and host galaxy ...
Andreas Brunthaler, Heino Falcke
openaire   +2 more sources

Emergence of cHz Quasiperiodic Oscillations from a Low-angular-momentum Flow onto a Supermassive Black Hole

open access: yesThe Astrophysical Journal Letters
Quasiperiodic oscillations (QPOs) are very common in black hole accretion systems that are seen from the modulations in luminosity. Many supermassive black hole sources (e.g., RE J1034+396, 1H 0707-495, MCG-6-30-15, 1ES 1927+654, Sgr A*) have been ...
Indu K. Dihingia, Yosuke Mizuno
doaj   +1 more source

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