A FAR-INFRARED SPECTROSCOPIC SURVEY OF INTERMEDIATE REDSHIFT (ULTRA) LUMINOUS INFRARED GALAXIES

We present Herschel far-IR photometry and spectroscopy as well as ground-based CO observations of an intermediate redshift (0.21 [< or =, slant] z [< or =, slant] 0.88) sample of Herschel-selected (ultra)-luminous infrared galaxies (L sub(IR) > 10 super(11.5) L sub([middot in circle])). Wit...

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Published inThe Astrophysical journal Vol. 796; no. 1; pp. 1 - 18
Main Authors Magdis, Georgios E, Rigopoulou, D, Hopwood, R, Huang, J-S, Farrah, D, Pearson, C, Alonso-Herrero, Almudena, Bock, J J, Clements, D, Cooray, A
Format Journal Article
LanguageEnglish
Published United States 20.11.2014
Subjects
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
CARBON MONOXIDE
COLOR
COMPARATIVE EVALUATIONS
CORRELATIONS
DUSTS
EFFICIENCY
EMISSION
FAR INFRARED RADIATION
GALAXIES
GALAXY NUCLEI
GAMMA RADIATION
Ground-based observation
Infrared
Interstellar matter
LUMINOSITY
PHOTOMETRY
RED SHIFT
Space telescopes
SPECTROSCOPY
STAR EVOLUTION
STARS
UNIVERSE
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Summary:We present Herschel far-IR photometry and spectroscopy as well as ground-based CO observations of an intermediate redshift (0.21 [< or =, slant] z [< or =, slant] 0.88) sample of Herschel-selected (ultra)-luminous infrared galaxies (L sub(IR) > 10 super(11.5) L sub([middot in circle])). With these measurements, we trace the dust continuum, far-IR atomic line emission, in particular [CII] 157.7 [mu]m, as well as the molecular gas of z ~ 0.3 luminous and ultraluminous infrared galaxies (LIRGs and ULIRGs) and perform a detailed investigation of the interstellar medium of the population. We find that the majority of Herschel-selected intermediate redshift (U)LIRGs have L sub(C II)/L sub(FIR) ratios that are a factor of about 10 higher than that of local ULIRGs and comparable to that of local normal and high-z star-forming galaxies.
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ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/796/1/63