2008A&A...479..355D


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.26CET03:08:42

2008A&A...479..355D - Astronomy and Astrophysics, volume 479, 355-363 (2008/2-4)

Measuring supermassive black holes with gas kinematics. II. The LINERs IC 989, NGC 077, and NGC 6500.

DE FRANCESCO G., CAPETTI A. and MARCONI A.

Abstract (from CDS):

We present results from a kinematical study of the gas in the nucleus of a sample of three LINER galaxies, obtained from archival HST/STIS long-slit spectra. We found that, while for the elliptical galaxy NGC5077, the observed velocity curves are consistent with gas in regular rotation around the galaxy's center, this is not the case for the two remaining objects. By modeling the surface brightness distribution and rotation curve from the emission lines in NGC5077, we found that the observed kinematics of the circumnuclear gas can be accurately reproduced by adding to the stellar mass component a black hole mass of MBH=6.8–2.8+4.3x108M (uncertainties at a 1σ level); the radius of its sphere of influence (Rsph ∼0.34") is well-resolved at the HST resolution. The BH mass estimate in NGC5077 is in fairly good agreement with both the MBH-Mbul (with an upward scatter of ∼0.4dex) and MBH-σ correlations (with an upward scatter of 0.5dex in the Tremaine et al. (2002ApJ...574..740T) form and essentially no scatter using the Ferrarese et al. (1996ApJ...470..444F) form) and provides further support for the presence of a connection between the residuals from the M_ BH_-σ correlation and the bulge effective radius. This indicates the presence of a black hole's ``fundamental plane'' in the sense that a combination of at least σ and Re drives the correlations between MBH and host bulge properties.

Abstract Copyright:

Journal keyword(s): black hole physics - galaxies: active - galaxies: bulges - galaxies: nuclei - galaxies: kinematics and dynamics

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 3998 SyG 11 57 56.1333561013 +55 27 12.925850484   11.64 12.10 10.09   ~ 588 2
2 NGC 5077 GiP 13 19 31.66964077 -12 39 25.0754790   13.87 12.85 11.30   ~ 276 0
3 NGC 5252 Sy2 13 38 15.8711551761 +04 32 33.525903711   15.21 14.21     ~ 436 0
4 IC 989 LIN 14 14 51.3 +03 07 51   14.4       ~ 57 1
5 NGC 6500 LIN 17 55 59.78195 +18 20 17.6713   13.43 12.54     ~ 210 0
6 NAME Local Group GrG ~ ~           ~ 7181 0

    Equat.    Gal    SGal    Ecl

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