Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-24T21:57:23.702Z Has data issue: false hasContentIssue false
  • English
  • Français

Evolution of the M•-σ relation

Published online by Cambridge University Press:  07 April 2020

D. Bhattacharyya  and
A. Mangalam Open the ORCID record for A. Mangalam [Opens in a new window]
D. Bhattacharyya
Affiliation:
Indian Institute of Astrophysics, Sarjapur Road, Koramangala, Bangalore, 560034, India emails: [email protected], [email protected]
A. Mangalam
Affiliation:
Indian Institute of Astrophysics, Sarjapur Road, Koramangala, Bangalore, 560034, India emails: [email protected], [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Black holes at the centers of the galaxies grow mainly by the processes of accretion, mergers, and consumption of stars. In the case of gas accretion with cooling sources, the flow is momentum driven, after which the black hole reaches a saturated mass, and subsequently, it grows only by consumption of stars. In addition, we include the effect of mergers on the growth of black hole spin and mass and study its evolution as a function of redshift in a ΛCDM cosmology using an initial seed mass and spin distribution functions that we have derived. For the stellar ingestion, we have assumed a power-law density profile for the galaxy in our framework of a new relativistic loss cone theory that includes the effect of the black hole spin. We predict the impact of the evolution on the M•−σ relation and compare it with available observations.

Keywords

spin, mass of black holeM•−σ relationredshiftevolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S342: Perseus in Sicily: From Black Hole to Cluster Outskirts , May 2018 , pp. 254 - 256
Copyright
© International Astronomical Union 2020

References

Stewart et al. 2009, ApJ, 702, 1005CrossRefGoogle Scholar
Mangalam, A., 2015, ASI conference Series, 12, 51–56Google Scholar
King 2003, ApJ, 596, L27CrossRefGoogle Scholar
Bhattacharyya, D. & Mangalam, A., 2018, JAA, 39, Issue 1, article id 4 (2018a)Google Scholar
Gammie et al. 2004, ApJ, 602, 312CrossRefGoogle Scholar
Mageshwaran, T. & Mangalam, A., 2015, ApJ, 814, 141CrossRefGoogle Scholar
Shankar, F., et al. 2009, ApJ, 694, 867CrossRefGoogle Scholar