Dynamics of massive black holes as a possible candidate of Galactic dark matter

1994 ◽  
Vol 437 ◽  
pp. 184 ◽  
Author(s):  
Guohong Xu ◽  
Jeremiah P. Ostriker
2015 ◽  
Vol 815 (1) ◽  
pp. 21 ◽  
Author(s):  
Mirko Krumpe ◽  
Takamitsu Miyaji ◽  
Bernd Husemann ◽  
Nikos Fanidakis ◽  
Alison L. Coil ◽  
...  

Author(s):  
Martin G. Haehnelt

Massive black holes appear to be an essential ingredient of massive galactic bulges but little is known yet to what extent massive black holes reside in dwarf galaxies and globular clusters. Massive black holes most likely grow by a mixture of merging and accretion of gas in their hierarchically merging host galaxies. While the hierarchical merging of dark matter structures extends to sub-galactic scales and very high redshift, it is uncertain if the same is true for the build–up of massive black holes. I discuss here some of the relevant problems and open questions.


2011 ◽  
Vol 20 (10) ◽  
pp. 1937-1940
Author(s):  
PASCAL CHARDONNET ◽  
ANNA CHIAPPINELLI

The center of our Galaxy provides a uniquely accessible laboratory. It is a rich environment of extreme density, velocity and tidal fields of stars. It is the closest example of a galactic nucleus and could give the opportunity to understand the role that massive black-holes play in the formation and evolution of galaxies. It could be used to test the effects of relativity and dark matter in the Galactic Center. If the central object is a black-hole such observation would be a milstone: the first direct proof that an event horizon, and therefore a black-hole exists. The next decade will be decisive in new discoveries.


2014 ◽  
Vol 89 (2) ◽  
Author(s):  
Stuart L. Shapiro ◽  
Vasileios Paschalidis

2019 ◽  
Vol 28 (14) ◽  
pp. 1943003 ◽  
Author(s):  
C. R. Argüelles ◽  
A. Krut ◽  
J. A. Rueda ◽  
R. Ruffini

We analyze the intriguing possibility of explaining both dark mass components in a galaxy: the dark matter (DM) halo and the supermassive dark compact object lying at the center, by a unified approach in terms of a quasi-relaxed system of massive, neutral fermions in general relativity. The solutions to the mass distribution of such a model that fulfill realistic halo boundary conditions inferred from observations, develop a high-density core supported by the fermion degeneracy pressure able to mimic massive black holes at the center of galaxies. Remarkably, these dense core-diluted halo configurations can explain the dynamics of the closest stars around Milky Way’s center (SgrA*) all the way to the halo rotation curve, without spoiling the baryonic bulge-disk components, for a narrow particle mass range [Formula: see text]–[Formula: see text][Formula: see text]keV.


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