DARK MATTER HALOS OF BARRED DISK GALAXIES
文献类型：期刊论文
| 作者 | Cervantes Sodi, Bernardo1,2; Li, Cheng3; Park, Changbom2 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2015-07-01 |
| 卷号 | 807期号:1页码:1 |
| 关键词 | galaxies: fundamental parameters galaxies: halos galaxies: spiral galaxies: statistics galaxies: structure |
| 英文摘要 | We use a large volume-limited sample of disk galaxies drawn from the Sloan Digital Sky Survey Data Release 7 to study the dependence of the bar fraction on the stellar-to-halo mass ratio, making use of a group catalog, and we identify central and satellite galaxies in our sample. For the central galaxies in the sample we estimate the stellar-tohalo mass ratio (M-*/M-h) and find that the fraction of barred galaxies is a strong function of this ratio, especially for the case of strong bars. Bars are more common in galaxies with high M-*/M-h values, as expected from early theoretical works that showed that systems with massive dark matter halos are more stable against bar instabilities. We find that the change of the bar fraction with M-h and M-* is stronger if we consider a relation with the form f(bar) = f(bar)(M-*(alpha)/M-h) with alpha = 1.5, and that the bar fraction is largely independent of other physical properties such as color and spin parameter when M-*(3/2)/M-h is fixed. With our sample of galaxies segregated into centrals and satellites, we also compare the fraction of barred galaxies in each group, finding a slightly higher bar fraction for satellites when compared with centrals at fixed stellar mass, but at fixed color this difference becomes very weak. This result, in agreement with previous studies, confirms that the bar fraction does not directly depend on the group/cluster environment, but the dependence exists through its dependence on internal morphology. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | LOW-REDSHIFT UNIVERSE ; DIGITAL SKY SURVEY ; SPIRAL GALAXIES ; STAR-FORMATION ; SECULAR EVOLUTION ; STELLAR BARS ; LOCAL UNIVERSE ; SDSS GALAXIES ; COMA CLUSTER ; GAS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000358945200111 |
| 源URL | [http://119.78.226.72/handle/331011/28209]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Univ Nacl Autonoma Mexico, Ctr Radioastron & Astrofis, Michoacan 58089, Mexico 2.Korea Inst Adv Study, Seoul 130722, South Korea 3.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cervantes Sodi, Bernardo,Li, Cheng,Park, Changbom. DARK MATTER HALOS OF BARRED DISK GALAXIES[J]. ASTROPHYSICAL JOURNAL,2015,807(1):1. |
| APA | Cervantes Sodi, Bernardo,Li, Cheng,&Park, Changbom.(2015).DARK MATTER HALOS OF BARRED DISK GALAXIES.ASTROPHYSICAL JOURNAL,807(1),1. |
| MLA | Cervantes Sodi, Bernardo,et al."DARK MATTER HALOS OF BARRED DISK GALAXIES".ASTROPHYSICAL JOURNAL 807.1(2015):1. |
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来源：上海天文台
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