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Bulge formation in late-type galaxies - Cuspy- vs soft-core dark-matter density profiles
Huang, JH; Deng, ZG; Fu, YN
2003
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
ISSN0004-6264
Volume55Issue:6Pages:L89-L93
AbstractThe dynamical evolution of super star clusters has been investigated in dark-matter halos depicted with a cuspyor soft-core density profile. Simulations show that (1) exponential bulges with central cusps form in both cases; (2) distinctive bulge formation fractions are derived for cuspy- and soft-core profiles; (3) the masses of the formed bulges are causally connected with the masses of nuclear clusters, which are heavier in the case of a cuspy-core profile; (4) massive, nuclear star clusters possibly form with no discernible bulges at different ages in cuspy- or soft-core cases. Based on comparisons with observations, both the soft- and cuspy-core dark matter density profiles are suitable to relevant dwarf galaxies.
KeywordCosmology : Dark Matter Galaxies : Bulge Galaxies : Formation Galaxies : Kinematics And Dynamics
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordSPIRAL GALAXIES ; ROTATION CURVES ; STAR-CLUSTERS ; NUCLEI ; CAMERA ; HALOS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000187619200005
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/4592
Collection历算和天文参考系研究团组
Affiliation1.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China
2.Chinese Acad Sci, Grad Sch, Dept Phys, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
4.Chinese Acad Sci, Natl Observ, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Huang, JH,Deng, ZG,Fu, YN. Bulge formation in late-type galaxies - Cuspy- vs soft-core dark-matter density profiles[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2003,55(6):L89-L93.
APA Huang, JH,Deng, ZG,&Fu, YN.(2003).Bulge formation in late-type galaxies - Cuspy- vs soft-core dark-matter density profiles.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,55(6),L89-L93.
MLA Huang, JH,et al."Bulge formation in late-type galaxies - Cuspy- vs soft-core dark-matter density profiles".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 55.6(2003):L89-L93.
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