Results 1 to 10 of about 163,797 (175)

Constraints on Galactic Intermediate Mass Black Holes [PDF]

Monthly Notices of the Royal Astronomical Society, 2006
Intermediate Mass Black Holes (IMBHs; 10^1.3-5 M_sun) are thought to form as relics of Population III stars or from the runaway collapse of stars in young clusters; their number and very existence are uncertain.
A. Ferrara, Agol, Arras, Baker, Barkana, Baumgardt, Baumgardt, Beskin, Binney, Bird, Bird, Blecha, Bregman, Carr, Colbert, Cordes, Davies, Dickey, Diemand, Dwek, Edgar, Ferrara, Freudenreich, Fujita, Fukugita, Gebhardt, Gebhardt, Gerssen, Ghez, Governato, Grimm, Hansen, Heger, Hernquist, Hopman, Hopman, Islam, Islam, Islam, Islam, Kaaret, Kaaret, Kalogera, Kazantzidis, Kent, King, King, King, Klessen, Klypin, Krolik, Krumholz, Kuijken, Lacey, Lambert, Larsen, Larson, Liu, Liu, Lockman, Lockman, M. Mapelli, Madau, Madhusudhan, Matsumoto, McKee, Mii, Miller, Miller, Miller, Miyaji, Mo, Moore, Moore, Murali, Mushotzky, N. Rea, Narayan, Navarro, Orosz, Ostriker, Pakull, Patruno, Persic, Portegies Zwart, Portegies Zwart, Press, Psaltis, Quataert, Rickett, Ricotti, Rosen, Salvaterra, Sanders, Shakura, Shapiro, Shödel, Solomon, Spergel, Springel, Steidel, Strohmayer, Swartz, Van Den Bosch, Van Der Marel, Vink, Volonteri, Volonteri, Volonteri, Wasserman, White, Widrow, Yoachim   +112 more
core   +4 more sources

Intermediate-Mass Black Holes in Globular Clusters [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2012
There have been reports of possible detections of intermediate-mass black holes (IMBHs) in globular clusters (GCs). Empirically, there exists a tight correlation between the central supermassive black hole (SMBH) mass and the mean velocity dispersion of ...
Bahcall, Bahcall, Bash, Busarello, Cavichia, Das, Davies, Dehnen, Djorgovski, Dwek, Erwin, Falcke, Farrell, Ferrarese, Gebhardt, Gebhardt, Grindlay, Harris, Heggie, Hu, Hu, Hu, Hurley, Jørgensen, Kormendy, Lanzoni, Lopez-Corredoira, Lou, Lou, Lou, Lou, Lou, Ma, Ma, Maccarone, Marin-Franch, Meylan, Meylan, Meylan, Meylan, Meylan, Miocchi, Noyola, Pryor, Safonova, Sarzi, Servillat, Tremaine, Ulvestad, van den, Veilleux, Wang, Wang, Yihong Wu, Yu-Qing Lou, Zaharijas, Zepf, Zheng   +57 more
core   +2 more sources

Gravitational Radiation from Intermediate-Mass Black Holes [PDF]

The Astrophysical Journal, 2002
Recent X-ray observations of galaxies with ROSAT, ASCA, and Chandra have revealed numerous bright off-center point sources which, if isotropic emitters, are likely to be intermediate-mass black holes, with hundreds to thousands of solar masses.
Benacquista M., Brandt N., Dabrowski Y., Fitchett M. J., Fitchett M. J., Frank J., Hansen B. M. S., Heggie D. C., Iwasawa K., Liu J., M. Coleman Miller, Nelemans G., Peters P. C., Redmount I. H., Scalo J. M.   +14 more
core   +4 more sources

Looking for Intermediate-Mass Black Holes [PDF]

Nuclear Physics B - Proceedings Supplements, 2009
A discussion of the entropy of the universe leads to the suggestion of very many intermediate-mass black holes between thirty and three hundred thousand solar masses in the halo. It is consistent with observations on wide binaries as well as microlensing
Alcock, Alcock, Baum, Baum, Baum, Bekenstein, Dine, Frampton, Frampton, Hawking, Holman, Kim, Kolb, Madau, Parker, Paul H. Frampton, Quinn, Shifman, Yoo, Zhitnitsky, Zwicky   +20 more
core   +2 more sources

Intermediate-mass Black Holes in Galactic Nuclei [PDF]

Proceedings of the International Astronomical Union, 2004
We present the first homogeneous sample of intermediate-mass black hole candidates in active galactic nuclei. Starting with broad-line active nuclei from the Sloan Digital Sky Survey, we use the linewidth-luminosity-mass scaling relation to select a ...
Barth, A. J., Greene, J. E., Ho, L. C.
core   +5 more sources

Which Globular Clusters contain Intermediate-mass Black Holes? [PDF]

The Astrophysical Journal, 2004
It has been assumed that intermediate-mass black holes (IMBHs) in globular clusters can only reside in the most centrally concentrated clusters, with a so-called `core-collapsed' density profile.
Holger Baumgardt, Junichiro Makino, Kormendy J., Piet Hut   +3 more
core   +6 more sources

Intermediate-Mass Black Holes [PDF]

Annual Review of Astronomy and Astrophysics, 2020
We describe ongoing searches for intermediate-mass black holes with MBH≈ 10–105M⊙. We review a range of search mechanisms, both dynamical and those that rely on accretion signatures. We find the following conclusions: ▪  Dynamical and accretion signatures alike point to a high fraction of 109–1010M⊙galaxies hosting black holes with MBH∼ 105M⊙.
Greene, Jenny E., Strader, Jay, Ho, Luis C.   +2 more
openaire   +2 more sources

INTERMEDIATE-MASS BLACK HOLES [PDF]

International Journal of Modern Physics D, 2004
The mathematical simplicity of black holes, combined with their links to some of the most energetic events in the universe, means that black holes are key objects for fundamental physics and astrophysics. Until recently, it was generally believed that black holes in nature appear in two broad mass ranges: stellar-mass (M~3–20 M⊙), which are produced ...
Miller, M. Coleman, Colbert, E. J. M.
openaire   +2 more sources

Intermediate-Mass Black Holes: The Essential Population to Explore the Unified Model for Accretion and Ejection Processes

Galaxies, 2023
We study radio and X-ray emissions from intermediate-mass black holes (IMBHs) and explore the unified model for accretion and ejection processes. The radio band survey of IMBH (candidate) hosted galaxies indicates that only a small fraction (∼0.6%) of ...
Xiaolong Yang, Jun Yang
doaj   +1 more source

Weighing the Darkness. III. How Gaia Could, but Probably Will Not, Astrometrically Detect Free-floating Black Holes

The Astrophysical Journal, 2023
The gravitational pull of an unseen companion to a luminous star is well known to cause deviations to the parallax and proper motion of a star. In a previous paper in this series, we argue that the astrometric mission Gaia can identify long-period ...
Jeff J. Andrews
doaj   +1 more source