Correlation of Black Hole and Bulge Masses: Driven by Energy but Correlated with Momentum

Details Correlation of Black Hole and Bulge Masses: Driven by Energy but Correlated with Momentum Correlation of Black Hole and Bulge Masses: Driven by Energy but Correlated with Momentum

2010-05-31

arxiv.org/abs/1005.5701v2

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

Accepted to MNRAS

Scientific paper

We use a recent sample of 49 galaxies to show that there is a proportionality relation between the black hole mass M_BH and the quantity \mu =M_G*\sigma /c, where M_G is mass of the spheroidal stellar component and \sigma is the stellar velocity dispersion. \mu is called the momentum parameter and the ratio is M_BH/\mu ~3.3. This result is applied to the penetrating-jet feedback model which argues that the correlation that holds is with a momentum-like parameter, although this feedback mechanism is based on energy balance.

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