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Environment of MAMBO Galaxies in the COSMOS Field

Aravena, M. and Bertoldi, F. and Carilli, C. L. and Schinnerer, E. and McCracken, H. J. and Salvato, M. and Riechers, D. and Sheth, K. and Smolčić, V. and Capak, P. and Koekemoer, A. M. and Menten, K. M. (2010) Environment of MAMBO Galaxies in the COSMOS Field. Astrophysical Journal Letters, 708 (1). L36-L41. ISSN 2041-8205. doi:10.1088/2041-8205/708/1/L36.

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Submillimeter galaxies (SMGs) represent a dust-obscured high-redshift population undergoing massive star formation activity. Their properties and space density have suggested that they may evolve into spheroidal galaxies residing in galaxy clusters. In this Letter, we report the discovery of compact (~10"-20") galaxy overdensities centered at the position of three SMGs detected with the Max-Planck millimeter bolometer camera in the COSMOS field. These associations are statistically significant. The photometric redshifts of galaxies in these structures are consistent with their associated SMGs; all of them are between z = 1.4 and 2.5, implying projected physical sizes of ~170 kpc for the overdensities. Our results suggest that about 30% of the radio-identified bright SMGs in that redshift range form in galaxy density peaks in the crucial epoch when most stars formed.

Item Type:Article
Related URLs:
URLURL TypeDescription DOIArticle
Aravena, M.0000-0002-6290-3198
Bertoldi, F.0000-0002-1707-1775
Carilli, C. L.0000-0001-6647-3861
Schinnerer, E.0000-0002-3933-7677
McCracken, H. J.0000-0002-9489-7765
Salvato, M.0000-0001-7116-9303
Riechers, D.0000-0001-9585-1462
Sheth, K.0000-0002-5496-4118
Smolčić, V.0000-0002-3893-8614
Capak, P.0000-0003-3578-6843
Koekemoer, A. M.0000-0002-6610-2048
Menten, K. M.0000-0001-6459-0669
Additional Information:© 2010 The American Astronomical Society. Received 2009 July 27; accepted 2009 November 20; published 2009 December 16. M. Aravena was partly supported for this research through a stipend from the International Max-Planck Research School (IMPRS) for Radio and Infrared Astronomy at the Universities of Bonn and Cologne. D. Riechers acknowledges support from NASA through Hubble Fellowship grant HST-HF-01212.01A awarded by the STScI, operated by AURA, under contract NAS 5-26555.
Group:COSMOS, Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
International Max-Planck Research School (IMPRS)UNSPECIFIED
NASA Hubble FellowshipHST-HF-01212.01A
NASANAS 5-26555
Subject Keywords:galaxies: clusters: general; galaxies: evolution; galaxies: high-redshift; galaxies: starburst
Issue or Number:1
Record Number:CaltechAUTHORS:20100128-093632293
Persistent URL:
Official Citation:Environment of MAMBO Galaxies in the COSMOS Field M. Aravena, F. Bertoldi, C. Carilli, E. Schinnerer, H. J. McCracken, M. Salvato, D. Riechers, K. Sheth, V. Sm&ocheck;lcić, P. Capak, A. M. Koekemoer, and K. M. Menten 2010 ApJ 708 L36-L41 doi: 10.1088/2041-8205/708/1/L36
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:17333
Deposited By: Tony Diaz
Deposited On:29 Jan 2010 16:52
Last Modified:08 Nov 2021 23:34

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