Submillimeter galaxies behind the Bullet Cluster (1E 0657-56)
Submillimeter galaxies behind the Bullet Cluster (1E 0657-56)
复制标题
子弹星团后面的亚毫米星系 (1E 0657-56)
DOI:
10.1051/0004-6361/200913833
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发表时间:
2010
影响因子:
6.5
通讯作者:
Johansson
中科院分区:
文献类型:
--
作者:
Johansson
ContextClusters of galaxies are effective gravitational lenses able to magnify background galaxies and making it possible to probe the fainter part of the galaxy population. Submillimeter galaxies, which are believed to be star-forming galaxies at typical redshifts of 2 to 3, are a major contaminant to the extended Sunyaev-Zeldovich (SZ) signal of galaxy clusters. For a proper quantification of the SZ signal the contribution of submillimeter galaxies needs to be quantified.AimsThe aims of this study are to identify submillimeter sources in the field of the Bullet cluster (1E 0657-56), a massive cluster of galaxies atz0.3, measure their flux densities at 870μm, and search for counterparts at other wavelengths to constrain their properties.MethodsWe carried out deep observations of the submillimeter continuum emission at 870μm using the Large APEX BOlometer CAmera (LABOCA) on the Atacama Pathfinder EXperiment (APEX) telescope. Several numerical techniques were used to quantify the noise properties of the data and extract sources.ResultsIn total, seventeen sources were found. Thirteen of them lie in the central 10 arcmin of the map, which has a pixel sensitivity of 1.2 mJy per22''beam. After correction for flux boosting and gravitational lensing, the number counts are consistent with published submm measurements. Nine of the sources have infrared counterparts in Spitzer maps. The strongest submm detection coincides with a source previously reported at other wavelengths, at an estimated redshiftz2.7. If the submm flux arises from two images of a galaxy magnified by a total factor of 75, as models have suggested, its intrinsic flux would be around 0.6 mJy, consistent with an intrinsic luminosity below 1012.
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DOI:
10.1111/j.1365-2966.2005.08723.x
发表时间:
2004
影响因子:
4.8
作者:
K. Coppin;M. Halpern;D. Scott;C. Borys;S. Chapman
通讯作者:
S. Chapman
DOI:
10.1086/520511
发表时间:
2007-09
期刊:
The Astrophysical Journal Supplement Series
影响因子:
--
作者:
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通讯作者:
F. Bertoldi;C. Carilli;M. Aravena;E. Schinnerer;H. Voss;V. Smolčić;K. Jahnke;N. Scoville;A. Blain;K. Menten;D. Lutz;M. Brusa;Y. Taniguchi;P. Capak;B. Mobasher;S. Lilly;D. Thompson;H. Aussel;E. Kreysa;G. Hasinger;James E. Aguirre;J. Schlaerth;A. Koekemoer
DOI:
10.1088/0004-637x/703/1/348
发表时间:
2009
期刊:
The Astrophysical Journal
影响因子:
--
作者:
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通讯作者:
D. Wiebe
DOI:
10.1117/12.550744
发表时间:
2004-07
期刊:
--
影响因子:
--
作者:
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通讯作者:
G. Fazio;J. Hora;L. E. Allen;M. Ashby;P. Barmby;L. Deutsch;J.-S. Huang;S. Kleiner;M. Marengo-M.
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
A. Blain
通讯作者:
A. Blain