NAOC Open IR  > 光学天文研究部
STRUCTURAL PARAMETERS FOR GLOBULAR CLUSTERS IN M31
Wang, Song1,2,3; Ma, Jun1,3
2013-08-01
Source PublicationASTRONOMICAL JOURNAL
Volume146Issue:2
AbstractIn this paper, we present surface brightness profiles for 79 globular clusters in M31, using images observed with the Hubble Space Telescope, some of which are from new observations. The structural and dynamical parameters are derived from fitting the profiles to several different models for the first time. The results show that in the majority of cases, King models fit the M31 clusters just as well as Wilson models and better than Sersic models. However, there are 11 clusters best fitted by Sersic models with the Sersic index n > 2, meaning that they have cuspy central density profiles. These clusters may be the well-known core-collapsed candidates. There is a bimodality in the size distribution of M31 clusters at large radii, which is different from their Galactic counterparts. In general, the properties of clusters in M31 and the Milky Way fall in the same regions of parameter spaces. The tight correlations of cluster properties indicate a "fundamental plane" for clusters, which reflects some universal physical conditions and processes operating at the epoch of cluster formation.
KeywordGalaxies: Individual (M31) Galaxies: Star Clusters: General Galaxies: Stellar Content
DOI10.1088/0004-6256/146/2/20
Indexed BySCI
Language英语
WOS IDWOS:000321841100002
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8898
Collection光学天文研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Wang, Song,Ma, Jun. STRUCTURAL PARAMETERS FOR GLOBULAR CLUSTERS IN M31[J]. ASTRONOMICAL JOURNAL,2013,146(2).
APA Wang, Song,&Ma, Jun.(2013).STRUCTURAL PARAMETERS FOR GLOBULAR CLUSTERS IN M31.ASTRONOMICAL JOURNAL,146(2).
MLA Wang, Song,et al."STRUCTURAL PARAMETERS FOR GLOBULAR CLUSTERS IN M31".ASTRONOMICAL JOURNAL 146.2(2013).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Song]'s Articles
[Ma, Jun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Song]'s Articles
[Ma, Jun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Song]'s Articles
[Ma, Jun]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.