Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-03-10
Astron.Astrophys.333:L47-L50,1998
Astronomy and Astrophysics
Astrophysics
4 pages, LaTeX2e, no figures, accepted by A&A Letters
Scientific paper
We estimate the energy release of black hole formation to the intra-cluster medium of the Coma cluster and find that this is comparable to the present day energy content. Therefore an energetic and maybe hydrostatic influence is possible. Our calculations rely on the assumption of an universal black hole to galaxy mass ratio (more exactly: spheroidal mass component of the stellar population), for which there is growing evidence. On a cosmological scale, there is also an energy release of black hole formation comparable to what is expected to be present within the thermal gas, caused by the process of structure formation. This indicates an important dynamical influence, neglected by present day structure formation simulations. This estimate of cosmological black hole energy release is independent of the black hole to galaxy mass ratio, but consistent with its value.
Biermann Peter L.
Ensslin Torsten A.
Nath Biman B.
Wang Yiping
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