Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009apj...691.1846t&link_type=abstract
The Astrophysical Journal, Volume 691, Issue 2, pp. 1846-1853 (2009).
Astronomy and Astrophysics
Astronomy
7
Dust, Extinction, Galaxies: Active, Galaxies: High-Redshift, Galaxies: Photometry, Galaxies: Starburst, Infrared: Galaxies
Scientific paper
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.
Armus Lee
Ashby Matthew L. N.
Blaylock Myra
Borys Colin
Brand Kate
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