Uncertainties in the calibrations of star formation rate
文献类型：期刊论文
| 作者 | Zhang FH(张奉辉)1,2 ; Li LF(李立芳)1,2; Kang XY(康晓宇)1,2,3; Zhuang YL(庄宇龙)1,2,3; Han ZW(韩占文)1,2
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2013-08 |
| 卷号 | 433期号:2页码:1039-1053 |
| 关键词 | binaries: general galaxies: abundances galaxies: evolution galaxies: fundamental parameters galaxies: star formation |
| ISSN号 | 0035-8711 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Zhang, FH (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | Calibrations of star formation rate (SFR) are affected by many factors, for example the metallicity, the initial mass function (IMF) and the evolutionary population synthesis (EPS) model used. In this paper we will discuss the effects of binary interactions, metallicity, EPS model and IMF on several widely used SFR calibrations based on the EPS models of Yunnan with and without binary interactions, BC03, SB99, PEGASE and POPSTAR. The inclusion of binary interactions makes these SFR conversion coefficients smaller (by less than 0.2 dex), and these differences increase with metallicity. The differences in the calibration coefficient between the SFR and the luminosity of the H alpha recombination line (C-H alpha) and that between the SFR and the ultraviolet (UV) fluxes at 1500 and 2800 angstrom (C-i,C- UV), caused by the IMF, are independent of metallicity (0.03-0.33 dex), except for Delta C-H alpha,C- IMF when using the POPSTAR and for Delta C-i,C- UV,C- IMF when using the PEGASE models. Moreover, we find that L-2800 is not suitable for the linear calibration of SFR at low metallicities. Finally, we compare the effects of these factors on the SFR calibrations considered in this paper. The effects of metallicity/IMF and EPS model on C-H alpha and C-FIR (the conversion coefficient between SFR and the far-infrared flux) are the largest among these factors, respectively. For the calibration between SFR and C-i,C- UV, the effects of these factors are comparable. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | STELLAR POPULATION SYNTHESIS ; FORMATION RATE INDICATORS ; INTERMEDIATE-MASS STARS ; EVOLUTIONARY SYNTHESIS ; BINARY INTERACTIONS ; FORMING GALAXIES ; SYNTHESIS MODELS ; CLUSTER ; UV ; STARBURST99 |
| 收录类别 | SCI |
| 原文出处 | http://mnras.oxfordjournals.org/content/433/2/1039 |
| 语种 | 英语 |
| WOS记录号 | WOS:000321462300012 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4550]  |
| 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 |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China 3.Graduate University of the Chinese Academy of Science, Beijing 100049, China |
| 推荐引用方式 GB/T 7714 | Zhang FH,Li LF,Kang XY,et al. Uncertainties in the calibrations of star formation rate[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2013,433(2):1039-1053. |
| APA | Zhang FH,Li LF,Kang XY,Zhuang YL,&Han ZW.(2013).Uncertainties in the calibrations of star formation rate.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,433(2),1039-1053. |
| MLA | Zhang FH,et al."Uncertainties in the calibrations of star formation rate".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 433.2(2013):1039-1053. |
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来源：云南天文台
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