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TY - JOUR
T1 - A Comprehensive View of a Strongly Lensed Planck-Associated Submillimeter Galaxy
AU - Fu, Hai
AU - Jullo, E.
AU - Cooray, A.
AU - Bussmann, R. S.
AU - Ivison, R. J.
AU - Pérez-Fournon, I.
AU - Djorgovski, S. G.
AU - Scoville, N.
AU - Yan, L.
AU - Riechers, D. A.
AU - Aguirre, J.
AU - Auld, R.
AU - Baes, M.
AU - Baker, A. J.
AU - Bradford, M.
AU - Cava, A.
AU - Clements, D. L.
AU - Dannerbauer, H.
AU - Dariush, A.
AU - De Zotti, G.
AU - Dole, H.
AU - Dunne, L.
AU - Dye, S.
AU - Eales, S.
AU - Frayer, D.
AU - Gavazzi, R.
AU - Gurwell, M.
AU - Harris, A. I.
AU - Herranz, D.
AU - Hopwood, R.
AU - Hoyos, C.
AU - Ibar, E.
AU - Jarvis, M. J.
AU - Kim, S.
AU - Leeuw, L.
AU - Lupu, R.
AU - Maddox, S.
AU - Martínez-Navajas, P.
AU - Michałowski, M. J.
AU - Negrello, M.
AU - Omont, A.
AU - Rosenman, M.
AU - Scott, D.
AU - Serjeant, S.
AU - Smail, I.
AU - Swinbank, A. M.
AU - Valiante, E.
AU - Verma, A.
AU - Vieira, J.
AU - Wardlow, J. L.
AU - van der Werf, P.
PY - 2012/7/1
Y1 - 2012/7/1
N2 - We present high-resolution maps of stars, dust, and molecular gas in a strongly lensed submillimeter galaxy (SMG) at z = 3.259. HATLAS J114637.9-001132 is selected from the Herschel-Astrophysical Terahertz Large Area Survey (H-ATLAS) as a strong lens candidate mainly based on its unusually high 500 μm flux density (~300 mJy). It is the only high-redshift Planck detection in the 130 deg2 H-ATLAS Phase-I area. Keck Adaptive Optics images reveal a quadruply imaged galaxy in the K band while the Submillimeter Array and the Jansky Very Large Array show doubly imaged 880 μm and CO(1→0) sources, indicating differentiated distributions of the various components in the galaxy. In the source plane, the stars reside in three major kpc-scale clumps extended over ~1.6 kpc, the dust in a compact (~1 kpc) region ~3 kpc north of the stars, and the cold molecular gas in an extended (~7 kpc) disk ~5 kpc northeast of the stars. The emissions from the stars, dust, and gas are magnified by ~17, ~8, and ~7 times, respectively, by four lensing galaxies at z ~ 1. Intrinsically, the lensed galaxy is a warm (T dust ~ 40-65 K), hyper-luminous (L IR ~ 1.7 × 1013 L ⊙ star formation rate (SFR) ~2000 M ⊙ yr-1), gas-rich (M gas/M baryon ~ 70%), young (M stellar/SFR ~ 20 Myr), and short-lived (M gas/SFR ~ 40 Myr) starburst. With physical properties similar to unlensed z > 2 SMGs, HATLAS J114637.9-001132 offers a detailed view of a typical SMG through a powerful cosmic microscope.
AB - We present high-resolution maps of stars, dust, and molecular gas in a strongly lensed submillimeter galaxy (SMG) at z = 3.259. HATLAS J114637.9-001132 is selected from the Herschel-Astrophysical Terahertz Large Area Survey (H-ATLAS) as a strong lens candidate mainly based on its unusually high 500 μm flux density (~300 mJy). It is the only high-redshift Planck detection in the 130 deg2 H-ATLAS Phase-I area. Keck Adaptive Optics images reveal a quadruply imaged galaxy in the K band while the Submillimeter Array and the Jansky Very Large Array show doubly imaged 880 μm and CO(1→0) sources, indicating differentiated distributions of the various components in the galaxy. In the source plane, the stars reside in three major kpc-scale clumps extended over ~1.6 kpc, the dust in a compact (~1 kpc) region ~3 kpc north of the stars, and the cold molecular gas in an extended (~7 kpc) disk ~5 kpc northeast of the stars. The emissions from the stars, dust, and gas are magnified by ~17, ~8, and ~7 times, respectively, by four lensing galaxies at z ~ 1. Intrinsically, the lensed galaxy is a warm (T dust ~ 40-65 K), hyper-luminous (L IR ~ 1.7 × 1013 L ⊙ star formation rate (SFR) ~2000 M ⊙ yr-1), gas-rich (M gas/M baryon ~ 70%), young (M stellar/SFR ~ 20 Myr), and short-lived (M gas/SFR ~ 40 Myr) starburst. With physical properties similar to unlensed z > 2 SMGs, HATLAS J114637.9-001132 offers a detailed view of a typical SMG through a powerful cosmic microscope.
KW - galaxies: formation
KW - galaxies: individual: HATLAS J114637.9–001132
KW - galaxies: interactions
U2 - 10.1088/0004-637X/753/2/134
DO - 10.1088/0004-637X/753/2/134
M3 - Journal article
VL - 753
SP - 134
JO - The Astrophysical Journal
JF - The Astrophysical Journal
SN - 0004-637X
IS - 2
ER -