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The evolution of the spiral galaxy M51a
Kang XY(康晓宇)1,2,3; Zhang FH(张奉辉)1,2; Chang, Ruixiang4
会议录名称Proceedings of International Astronomical Union (IAU) Symposium - Galaxies at High Redshift and Their Evolution Over Cosmic Time
2015-09-15
卷号319
页码129-129
DOI10.1017/S1743921315009916
会议录编者/会议主办者Kaviraj, S
产权排序第1完成单位
收录类别CPCI
会议名称319th IAU Symposium - Galaxies at High Redshift and Their Evolution Over Cosmic Time
会议日期2015-08-11
会议地点Honolulu, United States
会议赞助商Int Astron Union
关键词Galaxies: Abundance Galaxies: Evolution Galaxies: Individual: M51a Galaxies: Spiral
摘要

A simple model for M51a is constructed to explore its evolutionary history by assuming its disk grows from continuous gas infall, which is shaped by a free parameter-the infall-peak time t p. By adopting a constant infall-peak time t p = 7.0Gyr, our model predictions can reproduce most of the observed constraints and still show that the disk of M51a forms inside-out. Our results also show that the current molecular gas surface density, the star-formation rate and the UV-band surface brightness are important quantities to trace the effect of recent interactions on galactic star-formation process.

资助项目National Natural Science Foundation of China (NSFC)[11403092] ; National Natural Science Foundation of China (NSFC)[11273053] ; National Natural Science Foundation of China (NSFC)[11373053] ; National Natural Science Foundation of China (NSFC)[11573062]
项目资助者National Natural Science Foundation of China (NSFC)
语种英语
学科领域天文学 ; 恒星与银河系 ; 恒星物理学
学科门类理学 ; 理学::天文学
文章类型Proceedings Paper
出版者CAMBRIDGE UNIV PRESS
出版地THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
ISBN号978-1-10713-826-1
ISSN号1743-9213
URL查看原文
归档日期2016-12-01
WOS记录号WOS:000452773300061
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
引用统计
文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9779
专题大样本恒星演化研究组
通讯作者Kang XY(康晓宇)
作者单位1.Yunnan Observatories, CAS, Kunming, 650011, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, China
3.University of Chinese Academy of Sciences, Beijing, 100049, China
4.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, CAS, 80 Nandan Road, Shanghai, 200030, China
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
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Kang XY,Zhang FH,Chang, Ruixiang. The evolution of the spiral galaxy M51a[C]//Kaviraj, S. THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND:CAMBRIDGE UNIV PRESS,2015:129-129.
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