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The First Hyper-Luminous Infrared Galaxy Discovered by WISEWe report the discovery by the Wide-field Infrared Survey Explorer of the z = 2.452 source WISEJ181417.29+341224.9, the first hyperluminous source found in the WISE survey. WISE 1814+3412 is also the prototype for an all-sky sample of approximately 1000 extremely luminous "W1W2-dropouts" (sources faint or undetected by WISE at 3.4 and 4.6 micrometers and well detected at 12 or 22 micrometers). The WISE data and a 350 micrometers detection give a minimum bolometric luminosity of 3.7 x 10(exp 13) solar luminosity, with approximately 10(exp 14) solar luminosity plausible. Followup images reveal four nearby sources: a QSO and two Lyman Break Galaxies (LBGs) at z = 2.45, and an M dwarf star. The brighter LBG dominates the bolometric emission. Gravitational lensing is unlikely given the source locations and their different spectra and colors. The dominant LBG spectrum indicates a star formation rate approximately 300 solar mass yr(exp -1), accounting for less than or equal to 10 percent of the bolometric luminosity. Strong 22 micrometer emission relative to 350 micrometer implies that warm dust contributes significantly to the luminosity, while cooler dust normally associated with starbursts is constrained by an upper limit at 1.1 mm. Radio emission is approximately 10? above the far-infrared/radio correlation, indicating an active galactic nucleus is present. An obscured AGN combined with starburst and evolved stellar components can account for the observations. If the black hole mass follows the local MBH-bulge mass relation, the implied Eddington ratio is approximately greater than 4. WISE 1814+3412 may be a heavily obscured object where the peak AGN activity occurred prior to the peak era of star formation.
Document ID
20130013458
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Eisenhardt, Peter R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wu, Jingwen
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Tsai, Chao-Wei
(California Inst. of Tech. Pasadena, CA, United States)
Assef, Roberto
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Benford, Dominic
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Blain, Andrew
(Leicester Univ. United Kingdom)
Bridge, Carrie
(California Inst. of Tech. Pasadena, CA, United States)
Condon, J. J.
(National Radio Astronomy Observatory Charlottesville, VA, United States)
Cushing, Michael C.
(Toledo Univ. Toledo, OH, United States)
Cutri, Roc
(California Inst. of Tech. Pasadena, CA, United States)
Evans, Neal J., III
(Texas Univ. Austin, TX, United States)
Gelino, Chris
(California Inst. of Tech. Pasadena, CA, United States)
Griffith, Roger L.
(California Inst. of Tech. Pasadena, CA, United States)
Grillmair, Carl J.
(California Inst. of Tech. Pasadena, CA, United States)
Jarrett, Tom
(California Inst. of Tech. Pasadena, CA, United States)
Lonsdale, Carol J.
(National Radio Astronomy Observatory Charlottesville, VA, United States)
Masci, Frank J.
(California Inst. of Tech. Pasadena, CA, United States)
Mason, Brian S.
(National Radio Astronomy Observatory Charlottesville, VA, United States)
Petty, Sara
(California Univ. Los Angeles, CA, United States)
Sayers, Jack
(California Inst. of Tech. Pasadena, CA, United States)
Stanford, S. Adam
(California Univ. Davis, CA, United States)
Stern, Daniel
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wright, Edward L.
(California Univ. Los Angeles, CA, United States)
Yan, Lin
(California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 27, 2013
Publication Date
August 20, 2012
Subject Category
Astrophysics
Report/Patent Number
GSFC-E-DAA-TN6424
Funding Number(s)
CONTRACT_GRANT: NSF-AST-1109116
Distribution Limits
Public
Copyright
Public Use Permitted.
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