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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
Source PublicationProceedings of International Astronomical Union (IAU) Symposium - Galaxies at High Redshift and Their Evolution Over Cosmic Time
2015-09-15
Volume319
Pages129-129
DOI10.1017/S1743921315009916
Author of SourceKaviraj, S
Contribution Rank第1完成单位
Indexed ByCPCI
Conference Name319th IAU Symposium - Galaxies at High Redshift and Their Evolution Over Cosmic Time
Conference Date2015-08-11
Conference PlaceHonolulu, United States
Conference SponsorInt Astron Union
KeywordGalaxies: Abundance Galaxies: Evolution Galaxies: Individual: M51a Galaxies: Spiral
Abstract

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.

Funding ProjectNational 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]
Funding OrganizationNational Natural Science Foundation of China (NSFC)
Language英语
Subject Area天文学 ; 恒星与银河系 ; 恒星物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeProceedings Paper
PublisherCAMBRIDGE UNIV PRESS
Publication PlaceTHE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
ISBN978-1-10713-826-1
ISSN1743-9213
URL查看原文
Archive Date2016-12-01
WOS IDWOS:000452773300061
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9779
Collection大样本恒星演化研究组
Corresponding AuthorKang XY(康晓宇)
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
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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