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Herschel Extreme Lensing Line Observations: Dynamics Of Two Strongly Lensed Star-Forming Galaxies Near Redshift Z=2
(2014-05)
We report on two regularly rotating galaxies at redshift z approximate to 2, using high-resolution spectra of the bright [C II] 158 mu m emission line from the HIFI instrument on the Herschel Space Observatory. Both ...
Extreme Gas Fractions in Clumpy, Turbulent Disk Galaxies at Z Similar To 0.1
(2014-08)
In this Letter, we report the discovery of CO fluxes, suggesting very high gas fractions in three disk galaxies seen in the nearby universe (z similar to 0.1). These galaxies were investigated as part of the DYnamics of ...
Connecting Transitions In Galaxy Properties To Refueling
(2013-11)
We relate transitions in galaxy structure and gas content to refueling, here defined to include both the external gas accretion and the internal gas processing needed to renew reservoirs for star formation. We analyze two ...
Structure and Formation of Elliptical and Spheroidal Galaxies
(2009-05)
New surface photometry of all known elliptical galaxies in the Virgo cluster is combined with published data to derive composite profiles of brightness, ellipticity, position angle, isophote shape, and color over large ...
The Metallicity Dependence Of The Co -> H-2 Conversion Factor In Z >= 1 Star-Forming Galaxies
(2012-02)
We use the first systematic samples of CO millimeter emission in z >= 1 "main-sequence" star-forming galaxies to study the metallicity dependence of the conversion factor alpha(CO), from CO line luminosity to molecular gas ...
History Of Galaxy Interactions And Their Impact On Star Formation Over The Last 7 Gyr From GEMS
(2009-06)
We perform a comprehensive estimate of the frequency of galaxy mergers and their impact on star formation over z similar to 0.24-0.80 (lookback time T(b) similar to 3-7 Gyr) using similar to 3600 (M >= 1 x 10(9) M(circle ...
The Herschel Exploitation Of Local Galaxy Andromeda (HELGA). II. Dust And Gas In Andromeda
(2012-09)
We present an analysis of the dust and gas in Andromeda, using Herschel images sampling the entire far-infrared peak. We fit a modified-blackbody model to similar to 4000 quasi-independent pixels with spatial resolution ...
Obscured Star Formation In Intermediate-Density Environments: A Spitzer Study Of The Abell 901/902 Supercluster
(2009-01)
We explore the amount of obscured star formation as a function of environment in the Abell 901/902 (A901/902) supercluster at z = 0.165 in conjunction with a field sample drawn from the A901 and CDFS fields, imaged with ...
The HETDEX Pilot Survey. II. The Evolution Of The Ly Alpha Escape Fraction From The Ultraviolet Slope And Luminosity Function Of 1.9 < Z < 3.8 Laes
(2011-07)
We study the escape of Ly alpha photons from Ly alpha emitting galaxies (LAEs) and the overall galaxy population using a sample of 99 LAEs at 1.9 < z < 3.8 detected through integral-field spectroscopy of blank fields by ...
The Black Hole Mass-Stellar Velocity Dispersion Relationship For Quasars In The Sloan Digital Sky Survey Data Release 7
(2013-02)
We assess evolution in the M-BH-sigma(*) relationship for quasars in the Sloan Digital Sky Survey Data Release 7 for the redshift range 0.1 < z < 1.2. We estimate the black hole mass, M-BH, using the "photoionization ...