Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-10-20
Int.J.Mod.Phys.D14:1861-1872,2005
Astronomy and Astrophysics
Astrophysics
16 pages, 3 figures, 1 Table, accepted for publication in IJMPD
Scientific paper
10.1142/S0218271805007528
We use a restricted sample of elliptical galaxies, whose kinematical parameters inside the semimajor axis were calculated correcting the effect of the integration of the light along the line of sight, in order to analyze a possible relationship between the mass of a Supermassive Black Hole (SMBH) and the kinetic energy of random motions in the host galaxy. We find $M_{BH} \propto (M_{G} \sigma^{2})^\alpha$ with $0.87 \leq \alpha \leq 1$ depending on the different fitting methods and samples used. This result could be interpreted as a new fundamental relationship or as a new way to explain the old $M_{BH} - \sigma$ law. In fact, the relations of the velocity dispersion both with the mass of the SMBH ($M_{BH} \propto \sigma^{4.12}$) and with the mass of the host galaxy ($M_{G} \propto \sigma^{2.16}$) induce us to infer an almost direct proportionality: $M_{BH} \propto M_{G} \sigma^{2}$. A similar relationship is found for the total kinetic energy involving the rotation velocity too.
Feoli Antonio
Mele Daniela
No associations
LandOfFree
Is there a relationship between the mass of a SMBH and the kinetic energy of its host elliptical galaxy? 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 Is there a relationship between the mass of a SMBH and the kinetic energy of its host elliptical galaxy?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Is there a relationship between the mass of a SMBH and the kinetic energy of its host elliptical galaxy? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-475403