PMO OpenIR  > 天体化学和行星科学实验室
SIMS ANALYSIS OF OH AND D/H OF APATITES FROM EUCRITES.
Guan, Yunbin1; Wang, Ying2; Hsu, Weibiao2; Eiler, John M.1
2015-08-01
Source PublicationMETEORITICS & PLANETARY SCIENCE
Volume50Pages:0
AbstractThe dispersion of the star formation main sequence (SFMS) reflects the diversity of star formation histories (SFHs) and variation in star formation rates (SFRs) in star-forming galaxies (SFGs) with similar stellar masses (M*). We examine the dispersion of the local SFMS using a complete sample of Sloan Digital Sky Survey galaxies at 0.01 < z < 0.03 with log(M* / M-circle dot) > 8.8. The SFRs are estimated from Ha in combination with 22 mu m observation from the Wide-field Infrared Survey Explorer. We measure the dispersion of specific SFRs (sSFRs) as a function of M*. We confirm that the dispersion increases with M* from 0.37 +/- 0.01 dex at log(M* / M-circle dot) < 9.6 to 0.51 +/- 0.02 dex at log(M* / M-circle dot) > 10.2. Despite star formation being mostly associated with disks, the dispersion of disk sSFR still increases with M*. We conclude that the presence of bulges/bars is likely responsible for the large dispersion of sSFR in massive SFGs, while low-mass SFGs are mostly disk dominated and thus have a small dispersion. Our results suggest that star formation on galactic scales is dramatically affected by central dense structures through both enhancing and/or quenching processes, while lower-mass SFGs tend to have less bursty SFHs. However, the dispersion of the sSFR becomes significantly smaller and remains constant when only disk-dominated SFGs are counted. This finding implies that the impact of stochastic stellar feedback on star formation is likely to follow the same pattern in all disk galaxies, showing no correlation with halo potential.
Subject Area天文和天体物理
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI ; ISTP
Language英语
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000358591900117
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/14865
Collection天体化学和行星科学实验室
Affiliation1.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA
2.Chinese Acad Sci, Key Lab Planetary Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Guan, Yunbin,Wang, Ying,Hsu, Weibiao,et al. SIMS ANALYSIS OF OH AND D/H OF APATITES FROM EUCRITES.[J]. METEORITICS & PLANETARY SCIENCE,2015,50:0.
APA Guan, Yunbin,Wang, Ying,Hsu, Weibiao,&Eiler, John M..(2015).SIMS ANALYSIS OF OH AND D/H OF APATITES FROM EUCRITES..METEORITICS & PLANETARY SCIENCE,50,0.
MLA Guan, Yunbin,et al."SIMS ANALYSIS OF OH AND D/H OF APATITES FROM EUCRITES.".METEORITICS & PLANETARY SCIENCE 50(2015):0.
Files in This Item:
File Name/Size DocType Version Access License
2015029.pdf(206KB) 开放获取Apache LicenseView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Guan, Yunbin]'s Articles
[Wang, Ying]'s Articles
[Hsu, Weibiao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Guan, Yunbin]'s Articles
[Wang, Ying]'s Articles
[Hsu, Weibiao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Guan, Yunbin]'s Articles
[Wang, Ying]'s Articles
[Hsu, Weibiao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2015029.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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