The effect of bars on the M-aEuro cent-sigma(e) relation: offset, scatter and residuals correlations
文献类型：期刊论文
| 作者 | Hartmann, Markus1,2; Debattista, Victor P.2; Cole, David R.2; Valluri, Monica3; Widrow, Lawrence M.4; Shen, Juntai5
|
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2014-06-01 |
| 卷号 | 441期号:2页码:1243-1259 |
| 关键词 | black hole physics galaxies: bulges galaxies: evolution galaxies: kinematics and dynamics galaxies: nuclei galaxies: structure |
| 通讯作者 | 沈俊太 |
| 英文摘要 | We analyse a set of collisionless disc galaxy simulations to study the consequences of bar formation and evolution on the M-aEuro cent-sigma(e) relation of supermassive black holes (SMBHs). The redistribution of angular momentum driven by bars leads to a mass increase within the central region, raising the velocity dispersion of the bulge, sigma(e), on average by similar to 12 per cent and as much as similar to 20 per cent. If a disc galaxy with an SMBH satisfying the M-aEuro cent-sigma(e) relation forms a bar, and the SMBH does not grow in the process, then the increase in sigma(e) moves the galaxy off the M-aEuro cent-sigma(e) relation. We explore various effects that can affect this result including contamination from the disc and anisotropy. The displacement from the M-aEuro cent-sigma(e) relation for individual model barred galaxies correlates with both the bulge-to-total stellar mass ratio, M(B)/M(B + D), and the 2D anisotropy, beta(I center dot)(B + D), both measured within the effective radius of the bulge. Overall, this process leads to an M-aEuro cent-sigma(e) for barred galaxies offset from that of unbarred galaxies, as well as an increase in its scatter. We assemble samples of observed unbarred and barred galaxies with classical bulges and find tentative hints of an offset between the two consistent with the predicted. Including all barred galaxies, rather than just those with a classical bulge, leads to a significantly larger offset, which is mostly driven by the significantly larger offset of pseudo bulges. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SUPERMASSIVE BLACK-HOLES ; BH-SIGMA RELATION ; ACTIVE GALACTIC NUCLEI ; EARLY-TYPE GALAXIES ; GLOBULAR-CLUSTER SYSTEMS ; DARK-MATTER HALOES ; VELOCITY DISPERSION CORRELATION ; BARRED SPIRAL GALAXIES ; SELF-REGULATED GROWTH ; BULGE MASS RELATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000336494800026 |
| 公开日期 | 2015-02-14 |
| 源URL | [http://119.78.226.72//handle/331011/15794]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Univ Heidelberg ZAH, Zentrum Astron, Astron Rechen Inst, D-69120 Heidelberg, Germany 2.Univ Cent Lancashire, Jeremiah Horrocks Inst, Preston PR1 2HE, Lancs, England 3.Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA 4.Queens Univ, Dept Phys Engn Phys & Astron, Kingston, ON K7L 3N6, Canada 5.Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hartmann, Markus,Debattista, Victor P.,Cole, David R.,et al. The effect of bars on the M-aEuro cent-sigma(e) relation: offset, scatter and residuals correlations[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,441(2):1243-1259. |
| APA | Hartmann, Markus,Debattista, Victor P.,Cole, David R.,Valluri, Monica,Widrow, Lawrence M.,&Shen, Juntai.(2014).The effect of bars on the M-aEuro cent-sigma(e) relation: offset, scatter and residuals correlations.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,441(2),1243-1259. |
| MLA | Hartmann, Markus,et al."The effect of bars on the M-aEuro cent-sigma(e) relation: offset, scatter and residuals correlations".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 441.2(2014):1243-1259. |
入库方式： OAI收割
来源：上海天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。