中国科学院大学学报2024，Vol.41Issue(3)：312-320,9.DOI:10.7523/j.ucas.2022.052
常见的恒星质量和恒星形成率计算方法之间的对比
Comparisons among common methods of calculating stellar masses and star formation rates for normal galaxies
摘要
Abstract
Stellar mass and star formation rate are essential properties of galaxies.They are also an important basis for understanding the evolution of baryonic matter distribution on the cosmic time scale.Astronomers have developed many methods to estimate the stellar mass and star formation rate of a single galaxy using multi-waveband data.This paper evaluates the variations of the results from different stellar mass and star formation rate estimation methods using multi-wavelength sky survey data of a sample of normal galaxies from the Salon Digital Sky Survey.Our study shows that the results of various stellar mass estimation methods are not significantly different.However,the degree of deviation between the estimated star formation rates from different methods is significant and critical.Therefore,to avoid inaccurate interpretation caused by the discrepancy of different estimation methods,a similar observation data set and the same star formation rate estimation method should be used for each galaxy when comparing star formation rates between galaxies or analyzing star formation rates of a large galaxy sample.关键词
星系/恒星质量/恒星形成率/星系演化Key words
galaxies/stellar mass/star formation rate/galaxy evolution分类
天文与地球科学引用本文复制引用
李翠环,李国栋,蔡肇伟,单增罗布..常见的恒星质量和恒星形成率计算方法之间的对比[J].中国科学院大学学报,2024,41(3):312-320,9.基金项目
国家自然科学基金(12041302,11973051)资助 （12041302,11973051）
