Recovering the star formation rate in the solar neighborhood

被引：0

作者：

Cignoni, M. ^{[1
]}

Degl'Innocenti, S. ^{[1
]}

Moroni, P. G. Prada ^{[1
]}

Shore, S. N. ^{[1
]}

机构：

[1] Univ Pisa, Dipartimento Fis Enrico Fermi, I-56127 Pisa, Italy

来源：

STATISTICAL CHALLENGES IN MODERN ASTRONOMY IV | 2007年 / 371卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This paper develops a method for obtaining the star formation histories of a mixed, resolved population through the use of color-magnitude diagrams (CMDs). The method is applied to the derivation of the local star formation rate, analyzing the observations of the Hipparcos satellite through a comparison with synthetic CMDs computed for different star formation histories with an updated stellar evolution library. Parallax and photometric uncertainties are included explicitly and corrected using the Bayesian Richardson-Lucy algorithm. We find that the solar neighborhood star formation rate has a characteristic timescale for variation of about 6 Gyr, with a maximum activity close to 3 Gyr ago.

引用

页码：407 / 408

页数：2

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