Spitzer 70/160 μm observations of high-redshift ULIRGs and HyLIRGs in the Boötes field

Authors

• Krystal D. Tyler, University of Arizona
• Emeric Le Floc'H, University of Arizona
• George H. Rieke, University of Arizona
• Arjun Dey, National Optical Astronomy Observatory
• Vandana Desai, California Institute of Technology
• Kate Brand, Space Telescope Science Institute
• Colin Borys, California Institute of Technology
• Buell T. Jannuzi, National Optical Astronomy Observatory
• Lee Armus, National Optical Astronomy Observatory
• Herve Dole, Universite Paris Sud
• Casey Papovich, University of Arizona
• Michael J. I. Brown, Monash University
• Myra Blaylock, University of Arizona
• Sarah J.U. Higdon, Georgia Southern UniverstiyFollow
• James L. Higdon, Georgia Southern UniversityFollow
• Vassilis Charmandaris, University of CreteFollow
• Matthew L. N. Ashby, Harvard-Smithsonian Center for Astrophysics

Document Type

Article

Publication Date

2-2009

Publication Title

The Astrophysical Journal

DOI

10.1088/0004-637X/691/2/1846

Abstract

We present new 70 and 160 μm observations of a sample of extremely red (R - [24] gsim 15 mag), mid-infrared bright, high-redshift (1.7 lsim z lsim 2.8) galaxies. All targets detected in the far-infrared exhibit rising spectral energy distributions (SEDs) consistent with dust emission from obscured active galactic nuclei (AGNs) and/or star-forming regions in luminous IR galaxies (LIRGs). We find that the SEDs of the high-redshift sources are more similar to canonical AGN-dominated local ultraluminous IR galaxies (ULIRGs) with significant warm dust components than to typical local star-forming ULIRGs. The inferred IR (8-1000 μm) bolometric luminosities are found to be L _bol ~ 4 × 10¹² L _sun to ~3 × 10¹³ L _sun (ULIRGs/hyper-luminous IR galaxies (HyLIRGs)), representing the first robust constraints on L _bol for this class of object.

Recommended Citation

Tyler, Krystal D., Emeric Le Floc'H, George H. Rieke, Arjun Dey, Vandana Desai, Kate Brand, Colin Borys, Buell T. Jannuzi, Lee Armus, Herve Dole, Casey Papovich, Michael J. I. Brown, Myra Blaylock, Sarah J.U. Higdon, James L. Higdon, Vassilis Charmandaris, Matthew L. N. Ashby. 2009. "Spitzer 70/160 μm observations of high-redshift ULIRGs and HyLIRGs in the Boötes field." The Astrophysical Journal, 691 (2): 1846-1853: IOP Science. doi: 10.1088/0004-637X/691/2/1846
https://digitalcommons.georgiasouthern.edu/physics-facpubs/113

Copyright

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