YNAO OpenIR  > 大样本恒星演化研究组
Breaking the degeneracy between gas inflow and outflows with stellar metallicity: insights on M 101
Kang XY(康晓宇)1,2,3; Chang, Ruixiang4; Kudritzki, Rolf-Peter5,6; Gong XB(龚小波)1,2,3; Zhang FH(张奉辉)1,2,3
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2021-04-01
卷号502期号:2页码:1967-1973
DOI10.1093/mnras/stab147
产权排序第1完成单位
收录类别SCI ; EI
关键词galaxies: abundances galaxies: evolution galaxies: individual (M 101) galaxies: spiral galaxies: stellar content
摘要

An analytical chemical evolution model is constructed to investigate the radial distribution of gas-phase and stellar metallicity for star-forming galaxies. By means of the model, the gas-phase and stellar metallicity can be obtained from the stellar-to-gas mass ratio. Both the gas inflow and outflow processes play an important role in building the final gas-phase metallicity, and there exists degeneracy effect between the gas inflow and outflow rates for star-forming galaxies. On the other hand, stellar metallicity is more sensitive to the gas outflow rate than to the gas inflow rate, and this helps to break the parameter degeneracy for star-forming galaxies. We apply this analysis method to the nearby disc galaxy M 101 and adopting the classical chi(2) methodology to explore the influence of model parameters on the resulted metallicity. It can be found that the combination of gas-phase and stellar metallicity is indeed more effective for constraining the gas inflow and outflow rates. Our results also show that the model with relatively strong gas outflows but weak gas inflow describes the evolution of M 101 reasonably well.

资助项目National Key Research and Development Program of China[2019YFA0405501] ; National Natural Science Foundation (NSF) of China[11973081] ; National Natural Science Foundation (NSF) of China[11573062] ; National Natural Science Foundation (NSF) of China[11403092] ; National Natural Science Foundation (NSF) of China[11390374] ; National Natural Science Foundation (NSF) of China[11521303] ; Youth Innovation Promotion Association of Chinese Academy of Science Foundation[2012048] ; Chinese Academy of Sciences (CAS)[KJZD-EW-M06-01] ; Natural Science Foundation of Yunnan Province[2019FB006] ; National NSF of China[11373053] ; National NSF of China[11390373] ; Munich Excellence Cluster Origins - Deutsche Forschungsgemeinschaft (DFG ; German Research Foundation) under the German Excellence Strategy[EXC-2094 390783311]
项目资助者National Key Research and Development Program of China[2019YFA0405501] ; National Natural Science Foundation (NSF) of China[11973081, 11573062, 11403092, 11390374, 11521303] ; Youth Innovation Promotion Association of Chinese Academy of Science Foundation[2012048] ; Chinese Academy of Sciences (CAS)[KJZD-EW-M06-01] ; Natural Science Foundation of Yunnan Province[2019FB006] ; National NSF of China[11373053, 11390373] ; Munich Excellence Cluster Origins - Deutsche Forschungsgemeinschaft (DFG ; German Research Foundation) under the German Excellence Strategy[EXC-2094 390783311]
语种英语
学科领域天文学 ; 恒星与银河系 ; 恒星形成与演化
学科门类理学 ; 理学::天文学
文章类型Article
出版者OXFORD UNIV PRESS
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS记录号WOS:000648997200030
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]STAR-FORMING GALAXIES ; CHEMICAL EVOLUTION ; COMPOSITION GRADIENT ; ABUNDANCE GRADIENTS ; M101 ; MASS ; REGIONS ; POPULATION ; ACCRETION ; PROFILES
EI入藏号20221712017639
EI主题词Gases
EI分类号657.2 Extraterrestrial Physics and Stellar Phenomena
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/24402
专题大样本恒星演化研究组
中国科学院天体结构与演化重点实验室
通讯作者Kang XY(康晓宇)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, P. R. China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, P. R. China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, P. R. China
4.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, P. R. China
5.LMU Munchen, Universit atssternwarte, Scheinerstr. 1, Munchen D-81679, Germany
6.Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu HI96822, USA
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
推荐引用方式
GB/T 7714
Kang XY,Chang, Ruixiang,Kudritzki, Rolf-Peter,et al. Breaking the degeneracy between gas inflow and outflows with stellar metallicity: insights on M 101[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,502(2):1967-1973.
APA Kang XY,Chang, Ruixiang,Kudritzki, Rolf-Peter,Gong XB,&Zhang FH.(2021).Breaking the degeneracy between gas inflow and outflows with stellar metallicity: insights on M 101.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,502(2),1967-1973.
MLA Kang XY,et al."Breaking the degeneracy between gas inflow and outflows with stellar metallicity: insights on M 101".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 502.2(2021):1967-1973.
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