Recalibrating the cosmic star formation history
Recalibrating the cosmic star formation history
复制标题
重新校准宇宙恒星形成历史
DOI:
10.1093/mnras/stz2894
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发表时间:
2019
影响因子:
4.8
通讯作者:
Wilkins S
中科院分区:
文献类型:
--
作者:
Wilkins S
The calibrations linking observed luminosities to the star formation rate (SFR) depend on the assumed stellar population synthesis model, initial mass function, star formation and metal enrichment history, and whether reprocessing by dust and gas is included. Consequently the shape and normalization of the inferred cosmic star formation history is sensitive to these assumptions. Using v2.2.1 of the Binary Population and Spectral Synthesis (bpass) model we determine a new set of calibration coefficients for the ultraviolet, thermal infrared, and hydrogen recombination lines. These ultraviolet and thermal infrared coefficients are 0.15–0.2 dex higher than those widely utilized in the literature while the H α coefficient is ∼0.35 dex larger. These differences arise in part due to the inclusion binary evolution pathways but predominantly reflect an extension in the IMF to 300 M⊙and a change in the choice of reference metallicity. We use these new coefficients to recalibrate the cosmic star formation history, and find improved agreement between the integrated cosmic star formation history and thein situmeasured stellar mass density as a function of redshift. However, these coefficients produce new tension between SFR densities inferred from the ultraviolet and thermal infrared and those from H α.
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DOI:
10.3847/1538-4357/aa68e5
发表时间:
2017-01
期刊:
The Astrophysical Journal
影响因子:
--
作者:
B. Diemer;M. Sparre;L. Abramson;P. Torrey
通讯作者:
B. Diemer;M. Sparre;L. Abramson;P. Torrey
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
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DOI:
10.1017/pasa.2017.51
发表时间:
2017-11-16
影响因子:
6.3
作者:
Eldridge, J. J.;Stanway, E. R.;Bray, J. C.
通讯作者:
Bray, J. C.
影响因子:
6.5
作者:
J. V. Loon;M. Bailey;B. Tatton;J. M. Apellániz;P. Crowther;A. D. Koter;C. Evans;V. Hénault;I. Howarth;Philipp Richter;H. Sana;S. Simón;W. Taylor;N. Walborn
通讯作者:
N. Walborn
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
D. Dale;R. Barlow;Seth A. Cohen;D. Cook;L. Johnson;S. Kattner;C. Moore;M. Schuster;S. Staudaher
通讯作者:
S. Staudaher