Results 31 to 40 of about 163,915 (293)

Partial Tidal Disruptions of Main-sequence Stars by Intermediate-mass Black Holes

The Astrophysical Journal, 2023
We study close encounters of a 1 M _⊙ middle-age main-sequence star (modeled using MESA) with massive black holes through hydrodynamic simulations, and explore in particular the dependence of the outcomes on the black hole mass.
Fulya Kıroğlu, James C. Lombardi Jr., Kyle Kremer, Giacomo Fragione, Shane Fogarty, Frederic A. Rasio   +5 more
doaj   +1 more source

Thermodynamic Instability of Black Holes of Third Order Lovelock Gravity

, 2009
In this paper, we compute the mass and the temperature of the uncharged black holes of third order Lovelock gravity and compute the entropy through the use of first law of thermodynamics.
E. Witten, E. Witten, J. Maldacena, M. H. Dehghani, R. Pourhasan   +4 more
core   +1 more source

Probing intermediate-mass black hole binaries

Scilight, 2023
Atom interferometers can observe the intermediate band of gravitational waves needed for the long-sought-after detection of merging intermediate-mass black hole binaries.
openaire   +1 more source

Primordial intermediate mass black holes as dark matter [PDF]

International Journal of Modern Physics A, 2020
Among particle theory candidates for the dark matter constituents. Axions and WIMPs are the most popular. In this paper, we discuss these then focus on our preferred astrophysical candidate, the Primordial Intermediate Mass Black Holes in the acronym DM[Formula: see text]=[Formula: see text]PIMBHs.
openaire   +2 more sources

Initial mass function of intermediate-mass black hole seeds [PDF]

Monthly Notices of the Royal Astronomical Society, 2014
MNRAS, in press.
Ferrara, A., SALVADORI, STEFANIA, Yue, B., Schleicher, D.   +3 more
openaire   +4 more sources

Entropy of the Universe and Hierarchical Dark Matter

Entropy, 2022
We discuss the relationship between dark matter and the entropy of the universe, with the premise that dark matter exists in the form of primordial black holes (PBHs) in a hierarchy of mass tiers. The lightest tier includes all PBHs with masses below one
Paul H. Frampton
doaj   +1 more source

Mechanism for the Suppression of Intermediate-Mass Black Holes

, 2010
A model for the formation of supermassive primordial black holes in galactic nuclei with the simultaneous suppression of the formation of intermediate-mass black holes is presented. A bimodal mass function for black holes formed through phase transitions
A. D. Dolgov, A. Dolgov, A. Dolgov, A. King, A. Starobinsky, B. J. McNamara, B. Lanzoni, D. A. Samarchenko, E. Noyola, G. Illingworth, H. Baumgardt, H. Mii, K. Gebhardt, K. J. Mack, L. M. Ozernoy, M. C. Begelman, M. C. Miller, M. G. Haehnelt, M. J. Rees, M. Mapelli, M. Yu. Khlopov, M. Yu. Khlopov, N. Kawakatu, R. R. Islam, R. R. J. Antonucci, S. G. Rubin, S. G. Rubin, S. G. Rubin, S. G. Rubin, S.-J. Rey, T. P. Roberts, V. Dokuchaev, V. I. Dokuchaev, V. I. Dokuchaev, V. I. Dokuchaev, V. I. Dokuchaev, V. I. Dokuchaev, V. I. Dokuchaev, V. I. Dokuchaev, Yu. N. Eroshenko   +39 more
core   +1 more source

Radio Detections During Two State Transitions of the Intermediate Mass Black Hole HLX-1 [PDF]

, 2012
Relativistic jets are streams of plasma moving at appreciable fractions of the speed of light. They have been observed from stellar mass black holes ($\sim$3$-$20 solar masses, M$_\odot$) as well as supermassive black holes ($\sim$10$^6$$-$10$^9$ M$_ ...
Barret, Didier, Corbel, Stephane, Cseh, David, Farrell, Sean, Fender, Rob, Gehrels, Neil, Godet, Olivier, Heywood, Ian, Lenc, Emil, Webb, Natalie   +9 more
core   +6 more sources

Testing Photometric Diagnostics for the Dynamical State and Possible IMBH presence in Globular Clusters [PDF]

, 2011
Surface photometry is a necessary tool to establish the dynamical state of stars clusters. We produce realistic HST-like images from N-body models of star clusters with and without central intermediate-mass black holes (IMBHs) in order to measure their ...
Baumgardt, Holger, Noyola, Eva
core   +2 more sources

Intermediate-mass black holes and contribution to extragalactic background light from Population III stars in Milky Way-like galaxies

Astronomy & Astrophysics
The mass range of observed black holes extends from stellar-mass to supermassive scales, yet the existence of objects in the intermediate-mass range of 102–105 M⊙ remains unconfirmed.
Mkrtchyan A., Horns D.
doaj   +1 more source