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Intermediate Mass Black Holes in Star Clusters [PDF]

Progress of Theoretical Physics Supplement, 2004
We have performed N-body simulations of the formation of intermediate mass black holes in young star clusters and the subsequent dynamical evolution of star clusters containing massive black holes. Our simulations show that runaway merging of massive main-sequence stars can produce an intermediate mass black hole in the M82 cluster MGG-11 if the ...
Baumgardt, H, Makino, J
openaire   +4 more sources

Search for gravitational waves from intermediate mass binary black holes [PDF]

, 2012
We present the results of a weakly modeled burst search for gravitational waves from mergers of nonspinning intermediate mass black holes in the total mass range 100–450  M_⊙ and with the component mass ratios between 1:1 and 4:1.
Osthelder, C., Chalermsongsak, T., Taylor, R., Singer, L., Barayoga, J. C. B., Santamaría, L., Yeaton-Massey, D., McIntyre, G., Privitera, S., Brooks, A. F., Blackburn, J. K., Black, E., Bork, R., Dannenberg, R., Wallace, L., Luan, J., Abbott, R., Corsi, A., Marx, J. N., Zhang, L., Willems, P. A., Ivanov, A., Kozak, D., Miao, H., Weinstein, Alan J., Vass, S., Ehrens, P., Keppel, D. G., Heptonstall, A. W., Chen, Y., Adhikari, Rana X., Betzwieser, J., Jacobson, M., Seifert, F., Wen, L., Kalmus, P., Abadie, J., Kondrashov, V., Ogin, G. H., Pedraza, M., Rollins, J. G., Hanna, C., Fotopoulos, N., Driggers, J. C., Daudert, B., Thorne, K. S., Engel, R., Yang, H., James, E., Lindquist, P. E., Robertson, N. A., Torrie, C. I., Zweizig, J., Whitcomb, S. E., Yamamoto, H., Phelps, M., Williams, R., Abbott, B. P., Ajith, P., Drever, R. W. P., Stochino, A., Heefner, J., Anderson, S. B., King, P. J., Cepeda, C., Dergachev, V., Etzel, T., Mageswaran, M., Nash, T., Patel, P., Ott, C. D., Kells, W., Maros, E., Mailand, K., Price, L. R., Arai, K., Araya, M., Singer, A., Billingsley, G., Villar, A. E., Somiya, K., Hodge, K. A., Gustafson, E. K., DeSalvo, R., Smith, M. R., Sannibale, V., Hong, T., Coyne, D. C., Korth, W. Z., Harms, J., Lazzarini, A.   +90 more
core   +24 more sources

Tidal disruption of white dwarfs by intermediate mass black holes [PDF]

EPJ Web of Conferences, 2012
Modeling ultra-close encounters between a white dwarf and a spinning, intermediate mass black hole requires a full general relativistic treatment of gravity. This paper summarizes results from such a study.
Bode T., Shcherbakov R.V., Haas R., Laguna P.   +3 more
doaj   +4 more sources

Intermediate-mass black holes in Globular Clusters [PDF]

, 2013
For a sample of nine Galactic globular clusters we measured the inner kinematic profiles with integral-field spectroscopy that we combined with existing outer kinematic measurements and HST luminosity profiles. With this information we are able to detect the crucial rise in the velocity-dispersion profile which indicates the presence of a central black
Lützgendorf, N., Kissler-Patig, M., Gebhardt, K., Baumgardt, H., Noyola, E., De Zeeuw, P. T., Neumayer, N., Jalali, B., Feldmeier, A.   +8 more
openaire   +4 more sources

Dynamics of Intermediate Mass Black Holes in Star Clusters [PDF]

, 2004
We have followed the evolution of multi-mass star clusters containing massive central black holes by N-body simulations on the GRAPE6 computers of Tokyo University. We find a strong cluster expansion and significant structural changes of the clusters.
Baumgardt, H., Portegies Zwart, S.F., McMillan, S.L.W., Makino, J., Ebisuzaki, T.   +4 more
openaire   +5 more sources

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

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. We ran N-body simulations of Galactic IMBHs, modelling them as a halo population distributed according to a Navarro, Frenk & White (NFW ...
Mapelli, M., FERRARA, ANDREA, Rea, N.
openaire   +2 more sources

The Nature of the IMBH Candidate CXO J133815.6+043255: High-frequency Radio Emission

The Astrophysical Journal, 2023
The ultraluminous X-ray source CXO J133815.6+043255 is a strong candidate for a bona fide intermediate-mass black hole residing in the outskirts of NGC 5252.
Krista Lynne Smith, Macon Magno, Ashutosh Tripathi   +2 more
doaj   +1 more source

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 sample of 19 galaxies in the mass range M_BH ~ 8 x 10^4 - 10^6 solar masses.
Greene, Jenny E., Ho, Luis C., Barth, Aaron J.   +2 more
openaire   +3 more sources

An Origin of Narrow Extended Structure in the Interstellar Medium: An Interstellar Contrail Created by a Fast-moving Massive Object

The Astrophysical Journal, 2023
We investigate the thermal condensation caused by a massive object that passes through the interstellar medium with high velocity, and propose a mechanism for creating a filamentary gaseous object, or interstellar contrail.
Kanta Kitajima, Shu-ichiro Inutsuka
doaj   +1 more source