Results 91 to 100 of about 38,906 (246)

THE SUPERMASSIVE BLACK HOLE IN M84 REVISITED [PDF]

The Astrophysical Journal, 2010
The mass of the central black hole in the giant elliptical galaxy M84 has previously been measured by two groups using the same observations of emission-line gas with the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope, giving strongly discrepant results: Bower et al. (1998) found M_BH = (1.5^{+1.1}_{-0.6}) x 10^9 M_sun, while
Jonelle L. Walsh, Marc Sarzi, Aaron J. Barth   +2 more
openaire   +3 more sources

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

The 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

Assembly of supermassive black hole seeds

, 2018
We present a suite of six fully cosmological, three-dimensional simulations of the collapse of an atomic cooling halo in the early Universe. We use the moving-mesh code arepo with an improved primordial chemistry network to evolve the hydrodynamical and ...
Becerra, Fernando, Bromm, Volker, Hernquist, Lars E., Marinacci, Federico   +3 more
core   +1 more source

The distribution of supermassive black holes in the nuclei of nearby galaxies [PDF]

, 1998
The growth of supermassive black holes by merging and accretion in hierarchical models of galaxy formation is studied by means of Monte Carlo simulations.
Cattaneo, A., Haehnelt, M. (Cambridge Univ. (United Kingdom). Inst. of Astronomy, Max-Planck-Institut fuer Astrophysik, Garching (Germany), Max-Planck-Institut fuer Astrophysik, Garching (Germany)), Rees, M.J. (Cambridge Univ. (United Kingdom). Inst. of Astronomy)   +4 more
core   +4 more sources

Dynamics around supermassive black holes [PDF]

, 2011
Invited talk. To appear in "2007 STScI Spring Symposium: Black Holes", eds. M. Livio & A. M. Koekemoer.
A. Gualandris, D. Merritt
openaire   +3 more sources

Relativistic Aspects of Accreting Supermassive Black Hole Binaries in Their Natural Habitat: A Review

Galaxies, 2019
In this review a summary is given on recent theoretical work, on understanding accreting supermassive black hole binaries in the gravitational wave (GW)-driven regime. A particular focus is given to theoretical predictions of properties of disks and jets
Roman Gold
doaj   +1 more source

SDSS J092712.65+294344.0: Recoiling Black Hole or A Sub-parsec Binary Candidate?

, 2009
A search for recoiling supermassive black hole candidates recently yielded the best candidate thus far, SDSS J092712.65+294344.0 reported by Komossa et al.
Adelman-McCarthy, Armitage, Artymowicz, Baker, Baker, Baker, Berczik, Blecha, Bogdanović, Bonning, Campanelli, Dotti, Gould, Gualandris, Hayasaki, Hayasaki, Herrmann, Herrmann, Kaspi, Komossa, Lippai, MacFadyen, Merritt, Michael Eracleous, Milosavljević, Mohayaee, Nagao, Nagao, Nelson, Perets, Redmount, Rezzolla, Schnittman, Schnittman, Sesana, Shields, Steinn Sigurdsson, Tamara Bogdanović, Tremaine   +38 more
core   +1 more source

Enhancing the rate of tidal disruptions of stars by a self-gravitating disc around a massive central black hole

EPJ Web of Conferences, 2012
We further study the idea that a self-gravitating accretion disc around a supermassive black hole can increase the rate of gradual orbital decay of stellar trajectories (and hence tidal disruption events) by setting some stars on eccentric trajectories ...
Šubr L., Karas V.
doaj   +1 more source

Supermassive Black Holes

, 2007
26 pages, 15 figures, to appear in "Kerr Spacetime: Rotating Black Holes in General Relativity" eds. D.L. Wiltshire, M. Visser and S.M. Scott, (Cambridge Univ. Press)
openaire   +2 more sources

Fundamental physics opportunities with the next-generation Event Horizon Telescope

Living Reviews in Relativity
The Event Horizon Telescope (EHT) Collaboration recently published the first images of the supermassive black holes in the cores of the Messier 87 and Milky Way galaxies.
Dimitry Ayzenberg, Lindy Blackburn, Richard Brito, Silke Britzen, Avery E. Broderick, Raúl Carballo-Rubio, Vitor Cardoso, Andrew Chael, Koushik Chatterjee, Yifan Chen, Pedro V. P. Cunha, Hooman Davoudiasl, Peter B. Denton, Sheperd S. Doeleman, Astrid Eichhorn, Marshall Eubanks, Yun Fang, Arianna Foschi, Christian M. Fromm, Peter Galison, Sushant G. Ghosh, Roman Gold, Leonid I. Gurvits, Shahar Hadar, Aaron Held, Janice Houston, Yichao Hu, Michael D. Johnson, Prashant Kocherlakota, Priyamvada Natarajan, Héctor Olivares, Daniel Palumbo, Dominic W. Pesce, Surjeet Rajendran, Rittick Roy, Saurabh, Lijing Shao, Shammi Tahura, Aditya Tamar, Paul Tiede, Frédéric H. Vincent, Luca Visinelli, Zhiren Wang, Maciek Wielgus, Xiao Xue, Kadri Yakut, Huan Yang, Ziri Younsi   +47 more
doaj   +1 more source