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Date and Time of the Query: 2019-03-21 T09:44:13 PDT
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For refcode 2016ApJ...818...47S:
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2016ApJ...818...47S The SINFONI Black Hole Survey: The Black Hole Fundamental Plane Revisited and the Paths of (Co)evolution of Supermassive Black Holes and Bulges Saglia, R. P.; Opitsch, M.; Erwin, P.; Thomas, J.; Beifiori, A.; Fabricius, M.; Mazzalay, X.; Nowak, N.; Rusli, S. P.; Bender, R. Abstract. We investigate the correlations between the black hole (BH) mass M_BH_, the velocity dispersion sigma, the bulge mass M_Bu_, the bulge average spherical density {rho}_{{h_}}, and its spherical half-mass radius r_h_, constructing a database of 97 galaxies (31 core ellipticals, 17 power-law ellipticals, 30 classical bulges, and 19 pseudobulges) by joining 72 galaxies from the literature to 25 galaxies observed during our recent SINFONI BH survey. For the first time we discuss the full error covariance matrix. We analyze the well-known M_BH_--sigma and M_BH_--M_Bu_ relations and establish the existence of statistically significant correlations between M_Bu_ and r_h_ and anticorrelations between M_Bu_ and {rho}_{{h_}}. We establish five significant bivariate correlations (M_BH_--sigma--{rho}_h_, M_BH_--sigma--r_h_, M_BH_--M_Bu_--sigma, M_BH_--M_Bu_--{rho}_h_, M_BH_--M_Bu_--r_h_) that predict M_BH_ of 77 core and power-law ellipticals and classical bulges with measured and intrinsic scatter as small as ~ 0.36 dex and ~ 0.33 dex, respectively, or 0.26 dex when the subsample of 45 galaxies defined by Kormendy & Ho is considered. In contrast, pseudobulges have systematically lower M_BH_ but approach the predictions of all of the above relations at spherical densities {rho}_{{h_}}>=slant {10}^10^ {M}_o_ {{kpc}}^-3^ or scale lengths {r}_{{h_}}<=slant 1 {{kpc}}. These findings fit in a scenario of coevolution of BH and classical-bulge masses, where core ellipticals are the product of dry mergers of power-law bulges and power-law ellipticals and bulges the result of (early) gas-rich mergers and of disk galaxies. In contrast, the (secular) growth of BHs is decoupled from the growth of their pseudobulge hosts, except when (gas) densities are high enough to trigger the feedback mechanism responsible for the existence of the correlations between M_BH_ and galaxy structural parameters. Key words: galaxies: bulges, galaxies: elliptical and lenticular, cD, galaxies: fundamental parameters, galaxies: spiral, quasars: supermassive black holes
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