ULTRALUMINOUS INFRARED GALAXIES IN THE WISE AND SDSS SURVEYS

Journal Article · Wed Nov 20 04:00:00 EST 2013 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/778/1/10· OSTI ID:22270529

Su, Shanshan; Kong, Xu; Li, Jinrong ^[1]; Fang, Guanwen ^[2]

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1. Center for Astrophysics, University of Science and Technology of China, Hefei 230026 (China)
2. Institute for Astronomy and History of Science and Technology, Dali University, Yunnan 671003 (China)

In this paper, we present a large catalog of 419 Ultraluminous infrared galaxies (ULIRGs), carefully selected from the Wide-field Infrared Survey Explorer mid-infrared data and the Sloan Digital Sky Survey eighth data release, and classify them into three subsamples, based on their emission line properties: H II-like ULIRGs, Seyfert 2 ULIRGs, and composite ULIRGs. We apply our new efficient spectral synthesis technique, which is based on mean field approach to Bayesian independent component analysis (MF-ICA) method, to the galaxy integrated spectra. We also analyze the stellar population properties, including percentage contribution, stellar age, and stellar mass, for these three types of ULIRGs, and explore the evolution among them. We find no significant difference between the properties of stellar populations in ULIRGs with or without active galactic nucleus components. Our results suggest that there is no evolutionary link among these three type ULIRGs.

• OSTI ID: 22270529
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 1 Vol. 778; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ASTRONOMY
ASTROPHYSICS
CATALOGS
EMISSION SPECTRA
GALACTIC EVOLUTION
GALAXY NUCLEI
INFRARED SURVEYS
INTERMEDIATE INFRARED RADIATION
MASS
MEAN-FIELD THEORY
SEYFERT GALAXIES