中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A Comprehensive Bayesian Discrimination of the Simple Stellar Population Model, Star Formation History, and Dust Attenuation Law in the Spectral Energy Distribution Modeling of Galaxies

文献类型:期刊论文

作者Han YK(韩云坤)1,2,3; Han ZW(韩占文)1,2,3
刊名ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
出版日期2019
卷号240期号:1页码:36
关键词galaxies: fundamental parameters galaxies: statistics galaxies: stellar content methods: data analysis methods: statistical
ISSN号0067-0049
DOI10.3847/1538-4365/aaeffa
产权排序第1完成单位
文献子类Article
英文摘要

When modeling and interpreting the spectral energy distributions (SEDs) of galaxies, the simple stellar population (SSP) model, star formation history (SFH), and dust attenuation law (DAL) are three of the most important components. However, each of them carries significant uncertainties that have seriously limited our ability to reliably recover the physical properties of galaxies from the analysis of their SEDs. In this paper, we present a Bayesian framework to deal with these uncertain components simultaneously. Based on the Bayesian evidence, a quantitative implement of the principle of Occam's razor, the method allows a more objective and quantitative discrimination among the different assumptions about these uncertain components. With a K-s-selected sample of 5467 low-redshift (mostly with z less than or similar to 1) galaxies in the COSMOS/UltraVISTA field and classified into passively evolving galaxies (PEGs) and star-forming galaxies (SFGs) with the UVJ diagram, we present a Bayesian discrimination of a set of 16 SSP models from five research groups (BC03 and CB07, M05, GALEV, Yunnan-II, BPASS. V2.0), five forms of SFH (Burst, Constant, Exp-dec, Exp-inc, Delayed-tau), and four kinds of DAL (Calzetti law, MW, LMC, SMC). We show that the results obtained with the method are either obvious or understandable in the context of stellar/galaxy physics. We conclude that the Bayesian model comparison method, especially that for a sample of galaxies, is very useful for discriminating the different assumptions in the SED modeling of galaxies.

学科主题天文学 ; 恒星与银河系 ; 恒星物理学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词SUPERMASSIVE BLACK-HOLES ; INITIAL MASS FUNCTION ; GIANT BRANCH STARS ; POST-STARBURST GALAXIES ; HIGH-REDSHIFT GALAXIES ; DIGITAL SKY SURVEY ; TP-AGB STARS ; PHOTOMETRIC REDSHIFTS ; NEBULAR EMISSION ; FORMATION RATES
资助项目National Natural Science Foundation of China (NSFC)[11773063] ; National Natural Science Foundation of China (NSFC)[11521303] ; National Natural Science Foundation of China (NSFC)[11733008] ; Chinese Academy of Sciences (CAS)[KJZD-EW-M06-01] ; Yunnan Province[2017FB007] ; Yunnan Province[2017HC018]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000454432000003
出版者IOP PUBLISHING LTD
资助机构National Natural Science Foundation of China (NSFC)[11773063, 11521303, 11733008] ; Chinese Academy of Sciences (CAS)[KJZD-EW-M06-01] ; Yunnan Province[2017FB007, 2017HC018]
源URL[http://ir.ynao.ac.cn/handle/114a53/18811]  
专题云南天文台_大样本恒星演化研究组
云南天文台_中国科学院天体结构与演化重点实验室
通讯作者Han YK(韩云坤)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, People's Republic of China
2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, People's Republic of China
推荐引用方式
GB/T 7714
Han YK,Han ZW. A Comprehensive Bayesian Discrimination of the Simple Stellar Population Model, Star Formation History, and Dust Attenuation Law in the Spectral Energy Distribution Modeling of Galaxies[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2019,240(1):36.
APA Han YK,&Han ZW.(2019).A Comprehensive Bayesian Discrimination of the Simple Stellar Population Model, Star Formation History, and Dust Attenuation Law in the Spectral Energy Distribution Modeling of Galaxies.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,240(1),36.
MLA Han YK,et al."A Comprehensive Bayesian Discrimination of the Simple Stellar Population Model, Star Formation History, and Dust Attenuation Law in the Spectral Energy Distribution Modeling of Galaxies".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 240.1(2019):36.

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来源:云南天文台

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