The spin of late-type galaxies at redshifts z <= 1.2
文献类型:期刊论文
作者 | Cervantes-Sodi, Bernardo1,2; Hernandez, X.3; Hwang, Ho Seong4; Park, Changbom5; Le Borgne, Damien6 |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
出版日期 | 2012-10-01 |
卷号 | 426期号:2页码:1606-1612 |
关键词 | galaxies: evolution galaxies: fundamental parameters galaxies: general galaxies: high-redshift galaxies: statistics galaxies: structure |
英文摘要 | We study the evolution of the galactic spin using data of high-redshift galaxies in the fields of the Great Observatories Origins Deep Survey. Through simple dynamical considerations we estimate the spin for the disc galaxies in our sample and find that its distribution is consistent with that found for nearby galaxies. Defining a dimensionless angular momentum parameter for the disc component of the galaxies (?d), we do not find signs of evolution in the redshift range 0.4 = z = 1.2. We find that the mass and environmental dependences of the spin of our high-redshift galaxies are similar to those of low-z galaxies, showing a strong dependence on mass, in the sense that low-mass systems present higher ?d values than high-mass galaxies, with no significant dependence on the environmental density. These results lead us to conclude that although individual disc galaxies might occasionally suffer strong evolution, they evolve in such a way that the overall spin distribution of the galactic population remains constant from z similar to 1 to the present epoch. |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Astronomy & Astrophysics |
研究领域[WOS] | Astronomy & Astrophysics |
关键词[WOS] | GOODS-SOUTH FIELD ; TULLY-FISHER RELATION ; ORIGINS DEEP SURVEY ; DARK-MATTER HALOES ; DIGITAL SKY SURVEY ; DISK GALAXIES ; ANGULAR-MOMENTUM ; STELLAR MASS ; VLT/FORS2 SPECTROSCOPY ; SURFACE-BRIGHTNESS |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000309456200062 |
公开日期 | 2015-01-27 |
源URL | [http://119.78.226.72//handle/331011/15446] |
专题 | 上海天文台_星系宇宙学重点实验室 |
作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Max Planck Inst Astrophys, Partner Grp, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China 3.Univ Nacl Autonoma Mexico, Inst Astron, Mexico City 04510, DF, Mexico 4.Smithsonian Astrophys Observ, Cambridge, MA 02138 USA 5.Korea Inst Adv Study, Seoul 130722, South Korea 6.Univ Paris 06, Inst Astrophys Paris, UMR 7095, CNRS, F-75014 Paris, France |
推荐引用方式 GB/T 7714 | Cervantes-Sodi, Bernardo,Hernandez, X.,Hwang, Ho Seong,et al. The spin of late-type galaxies at redshifts z <= 1.2[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,426(2):1606-1612. |
APA | Cervantes-Sodi, Bernardo,Hernandez, X.,Hwang, Ho Seong,Park, Changbom,&Le Borgne, Damien.(2012).The spin of late-type galaxies at redshifts z <= 1.2.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,426(2),1606-1612. |
MLA | Cervantes-Sodi, Bernardo,et al."The spin of late-type galaxies at redshifts z <= 1.2".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 426.2(2012):1606-1612. |
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来源:上海天文台
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