scholarly journals Galaxy Bulge Formation: Interplay with Dark Matter Halo and Central Supermassive Black Hole

2007 ◽  
Vol 664 (1) ◽  
pp. 198-203 ◽  
Author(s):  
Bing‐Xiao Xu ◽  
Xue‐Bing Wu ◽  
Hong‐Sheng Zhao
Keyword(s):  
Black Hole ◽  
Dark Matter ◽  
Dark Matter Halo ◽  
Supermassive Black Hole ◽  
Bulge Formation

scholarly journals The Dark Matter Halo Density Profile, Spiral Arm Morphology, and Supermassive Black Hole Mass of M33

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Marc S. Seigar
Keyword(s):  
Black Hole ◽  
Dark Matter ◽  
Density Profile ◽  
Pitch Angle ◽  
Rotation Curve ◽  
Dark Matter Halo ◽  
Black Hole Mass ◽  
Supermassive Black Hole ◽  
Virial Mass ◽  
Spiral Arm

We investigate the dark matter halo density profile of M33. We find that the HI rotation curve of M33 is best described by an NFW dark matter halo density profile model, with a halo concentration of and a virial mass of . We go on to use the NFW concentration of M33, along with the values derived for other galaxies (as found in the literature), to show that correlates with both spiral arm pitch angle and supermassive black hole mass.

scholarly journals THE INFLUENCE OF DARK MATTER HALO ONTO EVOLUTION OF SUPERMASSIVE BLACK HOLE

2005 ◽  
Vol 20 (18) ◽  
pp. 4217-4239 ◽  
Author(s):  
M. I. ZELNIKOV ◽  
E. A. VASILIEV
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Dark Matter ◽  
Diffusion Coefficients ◽  
Dark Matter Halo ◽  
Supermassive Black Hole ◽  
Gravitational Influence ◽  
Gravitational Scattering ◽  
Innermost Region ◽  
Radial Action

The influence of dark matter (DM) on the growth of supermassive black holes (SMBHs) is studied. It is shown that gravitational scattering of DM particles on bulge stars leads to diffusion of DM in phase space {m, mz, I} (m denotes the angular momentum and I is the radial action). Appropriate diffusion coefficients are calculated for different bulge models, and it is argued that the diffusion along m axis is the most important effect. It is shown that this process leads to noticeable flow of DM into the black hole (BH), resulting in its power-law growth: M bh ∝ t9/16. Comparison with observational data shows that, in principle, this effect may explain observed masses of SMBHs. Special attention is paid to the corrections related to the innermost region of BH gravitational influence and the diffusion along I axis. Their influence on the BH growth law is shown to be negligible.

scholarly journals Bulge Formation from Super Star Clusters in a Responding Cuspy Dark Matter Halo

2007 ◽  
Vol 662 (1) ◽  
pp. 250-258
Author(s):  
Yan‐Ning Fu ◽  
Wen‐Hao Liu ◽  
Jie‐Hao Huang ◽  
Zu‐Gan Deng
Keyword(s):  
Dark Matter ◽  
Star Clusters ◽  
Dark Matter Halo ◽  
Super Star Clusters ◽  
Bulge Formation

scholarly journals Recoiling black holes in static and evolving dark matter halo potential

2015 ◽  
pp. 17-28 ◽  
Author(s):  
M. Smole
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Dark Matter ◽  
Critical Velocity ◽  
Complete Removal ◽  
Matter Density ◽  
Dark Matter Halo ◽  
Dark Matter Halos ◽  
Critical Amplitude ◽  
Density Distributions

We follow trajectories of kicked black holes in static and evolving dark matter halo potential. We explore both NFW and Einasto dark matter density distributions. Considered dark matter halos represent hosts of massive spiral and elliptical field galaxies. We study critical amplitude of kick velocity necessary for complete black hole ejection at various redshifts and find that ~40% lower kick velocities can remove black holes from their host haloes at z = 7 compared to z = 1. The greatest difference between static and evolving potential occurs near the critical velocity for black hole ejection and at high redshifts. When NFW and Einasto density distributions are compared ~30% higher kick velocities are needed for complete removal of BHs from dark matter halo described by NFW profile.

Black hole immersed dark matter halo

2020 ◽  
Vol 101 (2) ◽  
Author(s):  
Zhaoyi Xu ◽  
Xiaobo Gong ◽  
Shuang-Nan Zhang
Keyword(s):  
Black Hole ◽  
Dark Matter ◽  
Dark Matter Halo

scholarly journals THE BLACK HOLE–DARK MATTER HALO CONNECTION

2015 ◽  
Vol 803 (1) ◽  
pp. 5 ◽  
Author(s):  
Bassem M. Sabra ◽  
Charbel Saliba ◽  
Maya Abi Akl ◽  
Gilbert Chahine
Keyword(s):  
Black Hole ◽  
Dark Matter ◽  
Dark Matter Halo

scholarly journals HOW IMPORTANT IS THE DARK MATTER HALO FOR BLACK HOLE GROWTH?

2011 ◽  
Vol 737 (2) ◽  
pp. 50 ◽  
Author(s):  
Marta Volonteri ◽  
Priyamvada Natarajan ◽  
Kayhan Gültekin
Keyword(s):  
Black Hole ◽  
Dark Matter ◽  
Dark Matter Halo ◽  
Black Hole Growth ◽  
Hole Growth
Sign in / Sign up

Export Citation Format

Share Document