THE SUPERMASSIVE BLACK HOLE MASS-SPHEROID STELLAR MASS RELATION FOR SÉRSIC AND CORE-SÉRSIC GALAXIES

摘要: We have examined the relationship between supermassive black hole mass (M{sub BH}) and stellar of host spheroid sph,*}) for a sample 75 nearby galaxies. To derive masses we used improved Two Micron All Sky Survey K{sub s}-band photometry from ARCHANGEL pipeline. Dividing our into core-Sersic Sersic galaxies, find that they are described by very different M{sub BH}-M{sub sph,*} relations. For galaxies-which typically massive luminous, with BH} {approx}> 2 Multiplication-Sign 10{sup 8} Sun }-we BH}{proportional_to} sph,*}{sup 0.97{+-}0.14}, consistent other literature However, galaxies-with lower masses, {approx}< 3 10} BH}{proportional_to}M{sub 2.22{+-}0.58}, dramatically steeper slope differs more than standard deviations. This relation confirms that, is not constant fraction sph,*}. galaxies can grow via accretion gas which fuels both star formation central hole, as well through merging. Their grows significantly rapidly their spheroid, prior to growth dry merging events produce galaxies,more » where in lockstep. additionally compared corresponding nuclear clusters, confirming two classes object follow scaling relations.« less