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Submillimeter Observations of CLASH 2882 and the Evolution of Dust in this GalaxyTwo millimeter observations of the MACS J1149.6+2223 cluster have detected a source that was consistent with the location of the lensed MACS 1149-JD galaxy at z = 9.6. A positive identification would have rendered this galaxy as the youngest dust forming galaxy in the universe. Follow up observation with the AzTEC 1.1 mm camera and the IRAM NOrthern Extended Millimeter Array (NOEMA) at 1.3 mm have not confirmed this association. In this paper we show that the NOEMA observations associate the 2 mm source with [PCB2012] 2882,12 source number 2882 in the Cluster Lensing And Supernova survey with Hubble (CLASH) catalog of MACS J1149.6 +2223. This source, hereafter referred to as CLASH 2882, is a gravitationally lensed spiral galaxy at z = 0.99. We combine the Goddard IRAM Superconducting 2-Millimeter Observer (GISMO) 2 mm and NOEMA 1.3 mm fluxes with other (rest frame) UV to far-IR observations to construct the full spectral energy distribution of this galaxy, and derive its star formation history, and stellar and interstellar dust content. The current star formation rate of the galaxy is 54/mu/Solar Mass/yr, and its dust mass is about 5 × 10(exp 7)/mu Solar Mass, where mu is the lensing magnification factor for this source, which has a mean value of 2.7. The inferred dust mass is higher than the maximum dust mass that can be produced by core collapse supernovae and evolved AGB stars. As with many other star forming galaxies, most of the dust mass in CLASH 2882 must have been accreted in the dense phases of the interstellar medium.
Document ID
20160005322
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Dwek, Eli
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Staguhn, Johannes
(Johns Hopkins Univ. Baltimore, MD, United States)
Arendt, Richard G
(Maryland Univ. Baltimore County Baltimore, MD, United States)
Kovacs, Attila
(California Inst. of Tech. Pasadena, CA, United States)
Decarli, Roberto
(Max-Planck-Inst. fuer Astronomie Heidelberg, Germany)
Egami, Eiichi
(Arizona Univ. Tucson, AZ, United States)
Michalowski, Michal J.
(Royal Observatory Edinburgh, United Kingdom)
Rawle, Timothy D.
(European Space Astronomy Centre (ESAC) Madrid, Spain)
Toft, Sune
(Copenhagen Univ. Denmark)
Walter, Fabian
(Max-Planck-Inst. fuer Astronomie Heidelberg, Germany)
Date Acquired
April 26, 2016
Publication Date
November 5, 2015
Publication Information
Publication: The Astrophysical Journal
Publisher: American Astronomical Society
Volume: 813
Issue: 2
e-ISSN: 2041-8213
Subject Category
Astrophysics
Report/Patent Number
GSFC-E-DAA-TN31612
Funding Number(s)
CONTRACT_GRANT: NNX14AB76A
Distribution Limits
Public
Copyright
Other
Keywords
Submillimeter
Clash
Observations

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