PMO OpenIR
Molecular Gas of the Most Massive Spiral Galaxies. I. A Case Study of NGC 5908
Li, Jiang-Tao1; Zhou, Ping2; Jiang, Xuejian3; Bregman, Joel N.1; Gao, Yu3
2019-05-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume877Issue:1Pages:12
Corresponding AuthorLi, Jiang-Tao()
AbstractWe present IRAM 30 m observations of molecular lines of CO and its isotopologues from the massive spiral galaxy NGC 5908 selected from the CGM-MASS sample. (CO)-C-12 J = 1 - 0, (CO)-C-12 J = 2 - 1 and (CO)-C-13 J = 1 - 0 lines have been detected in most of the positions along the galactic disk. The total molecular gas mass of NGC 5908 is similar to 7 x 10(9) M-circle dot and the total cool gas mass adding atomic hydrogen is similar to 1.3 x 10(10 )M(circle dot), comparable to the upper limit of the mass of the X-ray emitting hot gas in the halo. Modeling the rotation curves constructed with all three CO lines indicates that NGC 5908 has a dark matter halo mass of M-vir similar to 10(13) M-circle dot, putting it among the most massive isolated spiral galaxies. The (CO)-C-12/(CO)-C-13 J = 1 - 0,(CO)-C- 12 J = 2 - 1/J = 1 - 0 line ratios and the estimated molecular gas temperature all indicate normal but non-negligible star formation in this fairly gas-rich massive isolated spiral galaxy, consistent with the measured star formation intensity and surface densities. The galaxy is probably at an early evolutionary stage after a fast growth stage with mergers and/or starbursts, with plenty of leftover cool gas, relatively high SFR, low hot CGM cooling rate, and low X-ray emissivity.
Keywordgalaxies: individual (NGC 5908) galaxies: ISM galaxies: spiral galaxies: star formation intergalactic medium ISM: molecules
DOI10.3847/1538-4357/ab1851
WOS KeywordINCLINED DISC GALAXIES ; STAR-FORMATION ; CHANDRA SURVEY ; MILKY-WAY ; CO ; STARBURST ; FEEDBACK ; INSIGHTS ; RATIOS ; ENERGY
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000468279600003
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/26664
Collection中国科学院紫金山天文台
Corresponding AuthorLi, Jiang-Tao
Affiliation1.Univ Michigan, Dept Astron, 311 West Hall,1085 S Univ Ave, Ann Arbor, MI 48109 USA
2.Univ Amsterdam, Anton Pannekoek Inst Astron, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands
3.Chinese Acad Sci, Key Lab Radio Astron, Purple Mt Observ, Nanjing 210034, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Li, Jiang-Tao,Zhou, Ping,Jiang, Xuejian,et al. Molecular Gas of the Most Massive Spiral Galaxies. I. A Case Study of NGC 5908[J]. ASTROPHYSICAL JOURNAL,2019,877(1):12.
APA Li, Jiang-Tao,Zhou, Ping,Jiang, Xuejian,Bregman, Joel N.,&Gao, Yu.(2019).Molecular Gas of the Most Massive Spiral Galaxies. I. A Case Study of NGC 5908.ASTROPHYSICAL JOURNAL,877(1),12.
MLA Li, Jiang-Tao,et al."Molecular Gas of the Most Massive Spiral Galaxies. I. A Case Study of NGC 5908".ASTROPHYSICAL JOURNAL 877.1(2019):12.
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
[Li, Jiang-Tao]'s Articles
[Zhou, Ping]'s Articles
[Jiang, Xuejian]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Jiang-Tao]'s Articles
[Zhou, Ping]'s Articles
[Jiang, Xuejian]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Jiang-Tao]'s Articles
[Zhou, Ping]'s Articles
[Jiang, Xuejian]'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.