Evidence for a population of high-redshift submillimeter galaxies from interferometric imaging

被引：161

作者：

Younger, Joshua D. ^{[1
]}

Fazio, Giovanni G. ^{[1
]}

Huang, Jia-Sheng ^{[1
]}

Yun, Min S. ^{[2
]}

Wilson, Grant W. ^{[2
]}

Ashby, Matthew L. N. ^{[1
]}

Gurwell, Mark A. ^{[1
]}

Lai, Kamson ^{[1
]}

Peck, Alison B. ^{[1
,3
]}

Petitpas, Glen R. ^{[1
]}

Wilner, David J. ^{[1
]}

Iono, Daisuke ^{[4
]}

Kohno, Kotaro ^{[5
]}

Kawabe, Ryohei ^{[6
]}

Hughes, David H. ^{[7
]}

Aretxaga, Itziar ^{[7
]}

Webb, Tracy ^{[8
]}

Martinez-Sansigre, Alejo ^{[9
]}

Kim, Sungeun ^{[10
]}

Scott, Kimberly S. ^{[2
]}

Austermann, Jason ^{[2
]}

Perera, Thushara ^{[2
]}

Lowenthal, James D. ^{[11
]}

Schinnerer, Eva ^{[9
]}

Smolcic, Vernesa ^{[9
]}

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[2] Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA

[3] Joint ALMA Off, Santiago 7550108, Chile

[4] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[5] Univ Tokyo, Inst Astron, Tokyo 1810015, Japan

[6] Nobeyama Radio Observ, Nagano 3841805, Japan

[7] Inst Nacl Astrofis Opt & Electr, Puebla, Mexico

[8] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[9] Max Planck Inst Astron, D-69117 Heidelberg, Germany

[10] Sejong Univ, Dept Astron & Space Sci, Seoul 143747, South Korea

[11] Smith Coll, Clark Sci Ctr, Dept Astron, Northampton, MA 01060 USA

来源：

ASTROPHYSICAL JOURNAL | 2007年 / 671卷 / 02期

关键词：

cosmology : observations; galaxies : evolution; galaxies : formation; galaxies : high-redshift; galaxies : starburst; submillimeter;

D O I：

10.1086/522776

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have used the Submillimeter Array to image a flux-limited sample of seven submillimeter galaxies, selected by the AzTEC camera on the JCMT at 1.1 mm, in the COSMOS field at 890 mu m with similar to 2 '' resolution. All of the sources two radio-bright and five radio-dim-are detected as single point sources at high significance (> 6 sigma), with positions accurate to similar to 0.2 '' that enable counterpart identification at other wavelengths observed with similarly high angular resolution. All seven have IRAC counterparts, but only two have secure counterparts in deep HST ACS imaging. As compared to the two radio-bright sources in the sample, and those in previous studies, the five radio-dim sources in the sample (1) have systematically higher submillimeter-to-radio flux ratios, (2) have lower IRAC 3.6-8.0 mu m fluxes, and (3) are not detected at 24 mu m. These properties, combined with size constraints at 890 mu m (theta less than or similar to 1.2 ''), suggest that the radio-dim submillimeter galaxies represent a population of very dusty starbursts, with physical scales similar to local ultraluminous infrared galaxies, with an average redshift higher than radio-bright sources.

引用

页码：1531 / 1537

页数：7

共 82 条

[1] The COBE diffuse infrared background experiment search for the Cosmic Infrared Background.: III.: Separation of galactic emission from the infrared sky brightness [J].

Arendt, RG ;

Odegard, N ;

Weiland, JL ;

Sodroski, TJ ;

Hauser, MG ;

Dwek, E ;

Kelsall, T ;

Moseley, SH ;

Silverberg, RF ;

Leisawitz, D ;

Mitchell, K ;

Reach, WT ;

Wright, EL .

ASTROPHYSICAL JOURNAL, 1998, 508 (01) :74-105

[2] The SCUBA half degree extragalactic survey -: IV.: Radio-mm-FIR photometric redshifts [J].

Aretxaga, Itziar ;

Hughes, David H. ;

Coppin, Kristen ;

Mortier, Angela M. J. ;

Wagg, Jeff ;

Dunlop, James S. ;

Chapin, Edward L. ;

Eales, Stephen A. ;

Gaztanaga, Enrique ;

Halpern, Mark ;

Ivison, Rob J. ;

van Kampen, Eelco ;

Scott, Douglas ;

Serjeant, Stephen ;

Smail, Ian ;

Babbedge, Thomas ;

Benson, Andrew J. ;

Chapman, Scott ;

Clements, David L. ;

Dunne, Loretta ;

Dye, Simon ;

Farrah, Duncan ;

Jarvis, Matt J. ;

Mann, Robert G. ;

Pope, Alexandra ;

Priddey, Robert ;

Rawlings, Steve ;

Seigar, Marc ;

Silva, Laura ;

Simpson, Chris ;

Vaccari, Mattia .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2007, 379 (04) :1571-1588

[3] Mid-infrared identifications of scuba galaxies in the CUDSS 14 hour field with the Spitzer space telescope [J].

Ashby, M. L. N. ;

Dye, S. ;

Huang, J. -S. ;

Eales, S. ;

Willner, S. P. ;

Webb, T. M. A. ;

Barmby, P. ;

Rigopoulou, D. ;

Egami, E. ;

McCracken, H. ;

Lilly, S. ;

Miyazaki, S. ;

Brodwin, M. ;

Blaylock, M. ;

Cadien, J. ;

Fazio, G. G. .

ASTROPHYSICAL JOURNAL, 2006, 644 (02) :778-791

[4] Submillimetre-wavelength detection of dusty star-forming galaxies at high redshift [J].

Barger, AJ ;

Cowie, LL ;

Sanders, DB ;

Fulton, E ;

Taniguchi, Y ;

Sato, Y ;

Kawara, K ;

Okuda, H .

NATURE, 1998, 394 (6690) :248-251

[5] Can the faint submillimetre galaxies be explained in the cold dark matter model? [J].

Baugh, CM ;

Lacey, CG ;

Frenk, CS ;

Granato, GL ;

Silva, L ;

Bressan, A ;

Benson, AJ ;

Cole, S .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 356 (03) :1191-1200

[6] COSBO: The MAMBO 1.2 millimeter imaging survey of the COSMOS field [J].

Bertoldi, F. ;

Carilli, C. ;

Aravena, M. ;

Schinnerer, E. ;

Voss, H. ;

Smolcic, V. ;

Jahnke, K. ;

Scoville, N. ;

Blain, A. ;

Menten, K. M. ;

Lutz, D. ;

Brusa, M. ;

Taniguchi, Y. ;

Capak, P. ;

Mobasher, B. ;

Lilly, S. ;

Thompson, D. ;

Aussel, H. ;

Kreysa, E. ;

Hasinger, G. ;

Aguirre, J. ;

Schlaerth, J. ;

Koekemoer, A. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2007, 172 (01) :132-149

[7] Submillimeter galaxies [J].

Blain, AW ;

Smail, I ;

Ivison, RJ ;

Kneib, JP ;

Frayer, DT .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2002, 369 (02) :111-176

[8] The first stars [J].

Bromm, V ;

Larson, RB .

ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 2004, 42 :79-118

[9] The first release COSMOS optical and near-IR data and catalog [J].

Capak, P. ;

Aussel, H. ;

Ajiki, M. ;

McCracken, H. J. ;

Mobasher, B. ;

Scoville, N. ;

Shopbell, P. ;

Taniguchi, Y. ;

Thompson, D. ;

Tribiano, S. ;

Sasaki, S. ;

Blain, A. W. ;

Brusa, M. ;

Carilli, C. ;

Comastri, A. ;

Carollo, C. M. ;

Cassata, P. ;

Colbert, J. ;

Ellis, R. S. ;

Elvis, M. ;

Giavalisco, M. ;

Green, W. ;

Guzzo, L. ;

Hasinger, G. ;

Ilbert, O. ;

Impey, C. ;

Jahnke, K. ;

Kartaltepe, J. ;

Kneib, J.-P. ;

Koda, J. ;

Koekemoer, A. ;

Komiyama, Y. ;

Leauthaud, A. ;

Lefevre, O. ;

Lilly, S. ;

Liu, C. ;

Massey, R. ;

Miyazaki, S. ;

Murayama, T. ;

Nagao, T. ;

Peacock, J. A. ;

Pickles, A. ;

Porciani, C. ;

Renzini, A. ;

Rhodes, J. ;

Rich, M. ;

Salvato, M. ;

Sanders, D. B. ;

Scarlata, C. ;

Schiminovich, D. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2007, 172 (01) :99-116

[10] The radio-to-submillimeter spectral index as a redshift indicator [J].

Carilli, CL ;

Yun, MS .

ASTROPHYSICAL JOURNAL, 1999, 513 (01) :L13-L16

← 1 2 3 4 5 6 7 8 9 →