Dust correction factors over 0 < z < 3 in massive star-forming galaxies derived from a stacking analysis of Herschel data
Dust correction factors over 0 < z < 3 in massive star-forming galaxies derived from a stacking analysis of Herschel data
复制标题
根据赫歇尔数据的叠加分析得出的大质量恒星形成星系中超过 0 < z < 3 的尘埃校正因子
DOI:
10.1051/0004-6361/201424607
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发表时间:
2014
影响因子:
6.5
通讯作者:
I. Oteo
中科院分区:
文献类型:
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作者:
I. Oteo
We use a stacking analysis in Herschel/PACS to study the accuracy of several dust-correction factors that are typically employed to estimate the total star-formation rate (SFR) of high-redshift, massive, star-forming (SF) galaxies. We also analyze what stacking suggests about the relation between SFR and stellar mass and the redshift evolution of the specific SFR (sSFR = SFR/M∗). We find that the dust properties of massive SF galaxies evolve with redshift, that is, galaxies at z ∼ 2−3 are more attenuated than at z ∼ 1f or a given UV continuum slope and stellar mass. As a consequence, a single IRX-β or dust-mass relation cannot be used to recover the total SFR of massive SF galaxies at 0 z 3. This might have implications for studies at higher redshifts, where a single IRX-β relation derived for local starbursts is usually assumed to be valid. However, we find evidence that the local relations might be valid at least up to z ∼ 1, where bluer and less massive galaxies can be detected through stacking. The spectral energy distribution fitting procedure with stellar population templates gives overestimated values (about 0.3‐0.5 dex in logSFR) of the dust-corrected SFR at all redshifts studied here. We find that the slope of the main-sequence of star formation is flatter than previously found in massive galaxies with log(M∗/M� ) ≥ 10, and the redshift evolution of the sSFR reported in previous works in massive galaxies is well recovered.
DOI:
10.1086/516593
发表时间:
2007-01
期刊:
The Astrophysical Journal Supplement Series
影响因子:
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作者:
M. Zamojski;D. Schiminovich;R. Rich;B. Mobasher;A. Koekemoer;P. Capak;Y. Taniguchi;S. Sasaki;S. Sasaki;H. McCracken;Y. Mellier;E. Bertin;H. Aussel;H. Aussel;D. Sanders;O. Fèvre;O. Ilbert;M. Salvato;D. Thompson;J. Kartaltepe;N. Scoville;N. Scoville;T. Barlow;K. Forster;P. Friedman;D. C. Martin;P. Morrissey;S. Neff;M. Seibert;T. Small;T. Wyder;L. Bianchi;J. Donas;T. Heckman;Young-Wook Lee;B. F. Madore;B. Milliard;A. Szalay;B. Welsh;Sukyoung K. Yi
通讯作者:
M. Zamojski;D. Schiminovich;R. Rich;B. Mobasher;A. Koekemoer;P. Capak;Y. Taniguchi;S. Sasaki;S. Sasaki;H. McCracken;Y. Mellier;E. Bertin;H. Aussel;H. Aussel;D. Sanders;O. Fèvre;O. Ilbert;M. Salvato;D. Thompson;J. Kartaltepe;N. Scoville;N. Scoville;T. Barlow;K. Forster;P. Friedman;D. C. Martin;P. Morrissey;S. Neff;M. Seibert;T. Small;T. Wyder;L. Bianchi;J. Donas;T. Heckman;Young-Wook Lee;B. F. Madore;B. Milliard;A. Szalay;B. Welsh;Sukyoung K. Yi
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