The NGC 4013 tale: a pseudo-bulged, late-type spiral shaped by a major merger
文献类型：期刊论文
| 作者 | Wang, Jianling1,2 ; Hammer, Francois3; Puech, Mathieu3; Yang, Yanbin3; Flores, Hector3
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2015-10-01 |
| 卷号 | 452期号:4页码:3551-3560 |
| 关键词 | galaxies: evolution galaxies: individual: NGC 4013 galaxies: interactions galaxies: spiral |
| 英文摘要 | Many spiral galaxy haloes show stellar streams with various morphologies when observed with deep images. The origin of these tidal features is discussed, either coming from a satellite infall or caused by residuals of an ancient, gas-rich major merger. By modelling the formation of the peculiar features observed in the NGC 4013 halo, we investigate their origin. By using GADGET-2 with implemented gas cooling, star formation, and feedback, we have modelled the overall NGC 4013 galaxy and its associated halo features. A gas-rich major merger occurring 2.7-4.6 Gyr ago succeeds in reproducing the NGC 4013 galaxy properties, including all the faint stellar features, strong gas warp, boxy-shaped halo and vertical 3.6 mu m luminosity distribution. High gas fractions in the progenitors are sufficient to reproduce the observed thin and thick discs, with a small bulge fraction, as observed. A major merger is able to reproduce the overall NGC 4013 system, including the warp strength, the red colour and the high stellar mass density of the loop, while a minor merger model cannot. Because the gas-rich model suffices to create a pseudo-bulge with a small fraction of the light, NGC 4013 is perhaps the archetype of a late-type galaxy formed by a relatively recent merger. Then late type, pseudo-bulge spirals are not mandatorily made through secular evolution, and the NGC 4013 properties also illustrate that strong warps in isolated galaxies may well occur at a late phase of a gas-rich major merger. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000360862100020 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5585]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100864, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 3.Univ Paris Diderot, Observ Paris, Lab GEPI, CNRS,UMR8111, F-92195 Meudon, France |
| 推荐引用方式 GB/T 7714 | Wang, Jianling,Hammer, Francois,Puech, Mathieu,et al. The NGC 4013 tale: a pseudo-bulged, late-type spiral shaped by a major merger[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2015,452(4):3551-3560. |
| APA | Wang, Jianling,Hammer, Francois,Puech, Mathieu,Yang, Yanbin,&Flores, Hector.(2015).The NGC 4013 tale: a pseudo-bulged, late-type spiral shaped by a major merger.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,452(4),3551-3560. |
| MLA | Wang, Jianling,et al."The NGC 4013 tale: a pseudo-bulged, late-type spiral shaped by a major merger".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 452.4(2015):3551-3560. |
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来源：国家天文台
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