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The role of environment on the star formation history of disc galaxies
Kang XY(康晓宇)1,2,3; Zhang FH(张奉辉)1,2,3; Chang, Ruixiang4; Kang, Xiaoyu(Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Yunnan, Peoples R China)
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2017-08-01
卷号469期号:2页码:1636-1646
DOI10.1093/mnras/stx1001
产权排序第1完成单位
收录类别SCI
关键词Galaxies: Evolution Galaxies: Individual: Ngc 2403 Galaxies: Individual: Ngc 300 Galaxies: Individual: M33 Galaxies: Spiral
摘要NGC 2403, NGC 300 and M33 are three nearby pure-disc galaxies with similar stellar mass in different environments; they are benchmarks for understanding late-type spiral galaxies in different environments. The chemical evolution and growth of their discs are investigated by using the simple chemical evolution model, in which their discs are assumed to originate and grow through the accretion of the primordial gas, and the gas outflow process is also taken into account. Through a comparative study of the best-fitting model-predicted star formation histories for them, we hope to derive a picture of the local environment on the evolution and star formation histories of galaxies and whether or not the isolated galaxies follow similar evolution history. Our results show that these three galaxies accumulated more than 50 per cent of their stellar mass at z < 1. It can also be found that the metallicity gradients in isolated spiral galaxies NGC 2403 and NGC 300 are similar and obviously steeper than that in M33, when the metallicity gradients are expressed in dexR(25)(-1). The similar metallicity gradients in NGC 2403 and NGC 300 indicate that they may experience similar chemical evolutionary histories. The principal epoch of star formation on the discs of NGC 2403 and NGC 300 is earlier than that on the disc of M33, and the mean age of stellar populations along the discs of both NGC 2403 and NGC 300 is larger than that of M33. Our results indicate that the evolution and star formation history of a galaxy indeed depend on its local environment, at least for galaxies with stellar mass of 10(9.2)-10(9.7)M(circle dot).
项目资助者National Natural Science Foundation of China (NSFC)(11573062, 11403092, 11390374, 11521303) ; YIPACAS Foundation(2012048) ; Yunnan Foundation(2011CI053) ; NSFC(11373053, 11390373) ; Strategic Priority Research Program 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences (CAS)(XDB09010100)
语种英语
学科领域天文学
文章类型Article
ISSN0035-8711
URL查看原文
WOS记录号WOS:000406629100030
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]MASS-METALLICITY RELATION ; HUBBLE-SPACE-TELESCOPE ; H-II REGIONS ; CHEMO-SPECTROPHOTOMETRIC EVOLUTION ; GALACTIC CHEMICAL EVOLUTION ; FAR OUTER DISC ; SPIRAL GALAXIES ; NGC 2403 ; ABUNDANCE GRADIENTS ; FORMING GALAXIES
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/11886
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, Xiaoyu(Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Yunnan, Peoples R China)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, China
4.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, China
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Kang XY,Zhang FH,Chang, Ruixiang,et al. The role of environment on the star formation history of disc galaxies[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,469(2):1636-1646.
APA Kang XY,Zhang FH,Chang, Ruixiang,&Kang, Xiaoyu.(2017).The role of environment on the star formation history of disc galaxies.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,469(2),1636-1646.
MLA Kang XY,et al."The role of environment on the star formation history of disc galaxies".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 469.2(2017):1636-1646.
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