Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2009-04-22
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
15 pages, 6 figures, accepted for publication in Advances in Space Research
Scientific paper
The centers of elliptical galaxies host supermassive black holes that significantly affect the surrounding interstellar medium through feedback resulting from the accretion process. The evolution of this gas and of the nuclear emission during the galaxies' lifetime has been studied recently with high-resolution hydrodynamical simulations. These included gas cooling and heating specific for an average AGN spectral energy distribution, a radiative efficiency declining at low mass accretion rates, and mechanical coupling between the hot gas and AGN winds. Here we present a short summary of the observational properties resulting from the simulations, focussing on 1) the nuclear luminosity; 2) the global luminosity and temperature of the hot gas; 3) its temperature profile and X-ray brightness profile. These properties are compared with those of galaxies of the local universe, pointing out the successes of the adopted feedback and the needs for new input in the simulations.
Ciotti Luca
Ostriker Jeremiah P.
Pellegrini Sara
No associations
LandOfFree
Clues on black hole feedback from simulated and observed X-ray properties of elliptical galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Clues on black hole feedback from simulated and observed X-ray properties of elliptical galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clues on black hole feedback from simulated and observed X-ray properties of elliptical galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-274958