MAMBO 1.2 mm Observations of BzK-selected Star-forming Galaxies at z ~ 2
MAMBO 1.2 mm Observations of BzK-selected Star-forming Galaxies at z ~ 2
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MAMBO 1.2 mm 对 z ~ 2 处 BzK 选择的恒星形成星系的观测
DOI:
10.1086/500546
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发表时间:
2005-12
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We present MAMBO 1.2 mm observations of five BzK-preselected vigorous starburst galaxies at z ~ 2. Two of these were detected at more than 99.5% confidence levels, with 1.2 mm fluxes around 1.5 mJy. These millimeter fluxes imply vigorous activity with star formation rates (SFRs) of ≈500-1500 M☉ yr-1, which were also confirmed by detections at 24 μm with the Multiband Imaging Photometer on Spitzer (MIPS). The two detected galaxies are the ones in the sample with the highest SFRs estimated from the rest-frame UV, and their far-IR-derived and UV-derived SFRs agree reasonably well. This is different from local ultraluminous infrared galaxies (ULIRGs) and high-z submillimeter/millimeter-selected galaxies, for which the UV is reported to underestimate SFRs by factors of 10-100, but similar to the average BzK ULIRG at z ~ 2. The two galaxies detected at 1.2 mm are brighter in K than the typical NIR counterparts of MAMBO and SCUBA sources, implying a significantly different K-band-to-submillimeter/millimeter flux ratio as well. This suggests a scenario in which z ~ 2 galaxies, after their rapid (sub)millimeter-bright phase that is opaque to optical/UV light, evolve into a longer lasting phase of K-band-bright and massive objects. Targeting the most UV-active BzK galaxies could yield substantial detection rates at submillimeter/millimeter wavelengths.
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DOI:
10.1086/378556
发表时间:
2003-09
期刊:
The Astrophysical Journal Letters
影响因子:
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作者:
C. Conselice;N. Grogin;S. Jogee;R. Lucas;T. Dahlén;D. D. de Mello-D.;J. Gardner;B. Mobasher;S. Ravindranath
通讯作者:
C. Conselice;N. Grogin;S. Jogee;R. Lucas;T. Dahlén;D. D. de Mello-D.;J. Gardner;B. Mobasher;S. Ravindranath
DOI:
10.1086/375156
发表时间:
2003-03
期刊:
The Astrophysical Journal Letters
影响因子:
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作者:
P. V. van Dokkum;N. F. Förster Schreiber;M. Franx;E. Daddi;G. Illingworth;I. Labbé;A. Moorwood;H. Rix;H. Röttgering;G. Rudnick;A. van der Wel;P. P. van der Werf-P.;L. van Starkenburg
通讯作者:
P. V. van Dokkum;N. F. Förster Schreiber;M. Franx;E. Daddi;G. Illingworth;I. Labbé;A. Moorwood;H. Rix;H. Röttgering;G. Rudnick;A. van der Wel;P. P. van der Werf-P.;L. van Starkenburg
DOI:
10.1086/428082
发表时间:
2004-12
期刊:
The Astrophysical Journal
影响因子:
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作者:
S. Chapman;A. Blain;I. Smail;R. Ivison
通讯作者:
S. Chapman;A. Blain;I. Smail;R. Ivison
DOI:
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发表时间:
1997
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DOI:
10.1086/428664
发表时间:
2005-01
期刊:
The Astrophysical Journal Letters
影响因子:
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作者:
K. Adelberger;D. Erb;C. Steidel;N. Reddy;M. Pettini;A. Shapley
通讯作者:
K. Adelberger;D. Erb;C. Steidel;N. Reddy;M. Pettini;A. Shapley