scholarly journals The Masses of Distant Galaxies from Optical Emission Line Widths

2006 ◽  
pp. 226-231
Author(s):  
Elizabeth Barton Gillespie ◽  
Liese van Zee
Keyword(s):  
Emission Line ◽  
Optical Emission ◽  
Distant Galaxies ◽  
Line Widths ◽  
The Masses

scholarly journals WISDOM project – VI. Exploring the relation between supermassive black hole mass and galaxy rotation with molecular gas

2020 ◽  
Vol 500 (2) ◽  
pp. 1933-1952
Author(s):  
Mark D Smith ◽  
Martin Bureau ◽  
Timothy A Davis ◽  
Michele Cappellari ◽  
Lijie Liu ◽  
...  
Keyword(s):  
Emission Line ◽  
Line Width ◽  
Rotation Velocity ◽  
Mass Function ◽  
Large Radius ◽  
Host Galaxies ◽  
Spatially Resolved ◽  
Two Samples ◽  
Line Widths ◽  
The Masses

ABSTRACT Empirical correlations between the masses of supermassive black holes (SMBHs) and properties of their host galaxies are well established. Among these is the correlation with the flat rotation velocity of each galaxy measured either at a large radius in its rotation curve or via a spatially integrated emission-line width. We propose here the use of the deprojected integrated CO emission-line width as an alternative tracer of this rotation velocity, which has already been shown useful for the Tully–Fisher (luminosity–rotation velocity) relation. We investigate the correlation between CO line widths and SMBH masses for two samples of galaxies with dynamical SMBH mass measurements, with spatially resolved and unresolved CO observations, respectively. The tightest correlation is found using the resolved sample of 25 galaxies as $\log (M_\mathrm{BH}/\mathrm{M_\odot })=(7.5\pm 0.1)+(8.5\pm 0.9)[\log (W_\mathrm{50}/\sin i \, \mathrm{km\, s}^{-1})-2.7]$, where MBH is the central SMBH mass, W50 is the full width at half-maximum of a double-horned emission-line profile, and i is the inclination of the CO disc. This relation has a total scatter of $0.6\,$ dex, comparable to those of other SMBH mass correlations, and dominated by the intrinsic scatter of $0.5\,$ dex. A tight correlation is also found between the deprojected CO line widths and the stellar velocity dispersions averaged within one effective radius. We apply our correlation to the COLD GASS sample to estimate the local SMBH mass function.

scholarly journals Serendipitous Discovery of an Optical Emission-line Jet in NGC 232

2017 ◽  
Vol 850 (1) ◽  
pp. L17 ◽  
Author(s):  
C. López-Cobá ◽  
S. F. Sánchez ◽  
I. Cruz-González ◽  
L. Binette ◽  
L. Galbany ◽  
...  
Keyword(s):  
Emission Line ◽  
Optical Emission

scholarly journals Upper limits on the mass of supermassive black holes from STIS archival data

2007 ◽  
Vol 3 (S245) ◽  
pp. 233-234
Author(s):  
A. Beifiori ◽  
E. M. Corsini ◽  
E. Dalla Bontà ◽  
A. Pizzella ◽  
L. Coccato ◽  
...  
Keyword(s):  
Black Holes ◽  
Emission Line ◽  
Supermassive Black Holes ◽  
Archival Data ◽  
Early Type ◽  
Preliminary Results ◽  
Upper Limits ◽  
Nearby Galaxies ◽  
Line Widths

AbstractThe growth of supermassive black holes (SMBHs) appears to be closely linked with the formation of spheroids. There is a pressing need to acquire better statistics on SMBH masses, since the existing samples are preferentially weighted toward early-type galaxies with very massive SMBHs. With this motivation we started a project aimed at measuring upper limits on the mass of the SMBHs that can be present in the center of all the nearby galaxies (D < 100 Mpc) for which STIS/G750M spectra are available in the HST archive. These upper limits will be derived by modeling the central emission-line widths ([N II] λλ6548, 6583, Hα and [S II] λλ6716, 6731) observed over an aperture of ~01 (R < 50 pc). Here we present our preliminary results for a subsample of 76 bulges.

scholarly journals Optical emission line nebulae in galaxy cluster cores 1: the morphological, kinematic and spectral properties of the sample

2016 ◽  
Vol 460 (2) ◽  
pp. 1758-1789 ◽  
Author(s):  
S. L. Hamer ◽  
A. C. Edge ◽  
A. M. Swinbank ◽  
R. J. Wilman ◽  
F. Combes ◽  
...  
Keyword(s):  
Emission Line ◽  
Spectral Properties ◽  
Galaxy Cluster ◽  
Optical Emission ◽  
Cluster Cores

scholarly journals A Comparison of Rest-frame Ultraviolet and Optical Emission-line Diagnostics in the Lensed Galaxy SDSS J1723+3411 at Redshift z = 1.3293

2021 ◽  
Vol 908 (2) ◽  
pp. 154
Author(s):  
J. R. Rigby ◽  
Michael Florian ◽  
A. Acharyya ◽  
Matthew Bayliss ◽  
Michael D. Gladders ◽  
...  
Keyword(s):  
Emission Line ◽  
Rest Frame ◽  
Optical Emission

scholarly journals Kband SINFONI spectra of twoz~ 5 submillimeter galaxy systems: upper limits to the unobscured star formation from [O II] optical emission line searches

2016 ◽  
Vol 594 ◽  
pp. A74 ◽  
Author(s):  
Guilherme S. Couto ◽  
Luis Colina ◽  
Javier Piqueras López ◽  
Thaisa Storchi-Bergmann ◽  
Santiago Arribas
Keyword(s):  
Star Formation ◽  
Emission Line ◽  
Optical Emission ◽  
Line Searches ◽  
Upper Limits

Is there a Relation between Optical Emission Line Strengths and Continuum Shapes?

1989 ◽  
pp. 187-188
Author(s):  
Belinda J. Wilkes ◽  
Martin Elvis ◽  
Jonathan McDowell
Keyword(s):  
Emission Line ◽  
Optical Emission ◽  
Line Strengths

scholarly journals Optical observations of CI Cygni

1982 ◽  
Vol 70 ◽  
pp. 153-156
Author(s):  
N.A. Oliversen ◽  
C.M. Anderson ◽  
K.H. Nordsieck
Keyword(s):  
Emission Line ◽  
Optical Emission ◽  
Optical Observations

AbstractWe report optical emission line variations in CI Cygni during the 1980 eclipse.

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