Interactions of galaxies outside clusters and massive groups
文献类型：期刊论文
| 作者 | Yadav, Jaswant K.1; Chen, Xuelei2,3 |
| 刊名 | JOURNAL OF ASTROPHYSICS AND ASTRONOMY
 |
| 出版日期 | 2018-06-01 |
| 卷号 | 39期号:3页码:13 |
| 关键词 | Galaxies-evolution galaxies-interactions galaxies-fundamental parameters galaxies-general |
| ISSN号 | 0250-6335 |
| DOI | 10.1007/s12036-018-9521-x |
| 英文摘要 | We investigate the dependence of physical properties of galaxies on small- and large-scale density environment. The galaxy population consists of mainly passively evolving galaxies in comparatively low-density regions of Sloan Digital Sky Survey (SDSS). We adopt (i) local density, , derived using adaptive smoothing kernel, (ii) projected distance, , to the nearest neighbor galaxy and (iii) the morphology of the nearest neighbor galaxy as various definitions of environment parameters of every galaxy in our sample. In order to detect long-range interaction effects, we group galaxy interactions into four cases depending on morphology of the target and neighbor galaxies. This study builds upon an earlier study by Park and Choi (2009) by including improved definitions of target and neighbor galaxies, thus enabling us to better understand the effect of "the nearest neighbor" interaction on the galaxy. We report that the impact of interaction on galaxy properties is detectable at least up to the pair separation corresponding to the virial radius of (the neighbor) galaxies. This turns out to be mostly between 210 and 360 kpc for galaxies included in our study. We report that early type fraction for isolated galaxies with is almost ignorant of the background density and has a very weak density dependence for closed pairs. Star formation activity of a galaxy is found to be crucially dependent on neighbor galaxy morphology. We find star formation activity parameters and structure parameters of galaxies to be independent of the large-scale background density. We also exhibit that changing the absolute magnitude of the neighbor galaxies does not affect significantly the star formation activity of those target galaxies whose morphology and luminosities are fixed. |
| WOS关键词 | DIGITAL SKY SURVEY ; STAR-FORMATION RATES ; SURVEY PHOTOMETRIC SYSTEM ; LARGE-SCALE ENVIRONMENT ; REDSHIFT SURVEY ; FORMING GALAXIES ; DENSITY RELATION ; SPIRAL GALAXIES ; NUCLEAR ACTIVITY ; RICH CLUSTERS |
| 资助项目 | Chinese Academy of Sciences ; NSFC[11250110510] ; NSFC[11373030] ; Alfred P. Sloan Foundation ; National Science Foundation ; U.S. Department of Energy ; National Aeronautics and Space Administration ; Japanese Monbukagakusho ; Max Planck Society ; Higher Education Funding Council for England |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000434124000001 |
| 出版者 | INDIAN ACAD SCIENCES |
| 资助机构 | Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC ; NSFC ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC ; NSFC ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC ; NSFC ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC ; NSFC ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/21630]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Yadav, Jaswant K. |
| 作者单位 | 1.Cent Univ Haryana, Dept Phys, Mahendergarh 123031, Haryana, India 2.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China 3.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yadav, Jaswant K.,Chen, Xuelei. Interactions of galaxies outside clusters and massive groups[J]. JOURNAL OF ASTROPHYSICS AND ASTRONOMY,2018,39(3):13. |
| APA | Yadav, Jaswant K.,&Chen, Xuelei.(2018).Interactions of galaxies outside clusters and massive groups.JOURNAL OF ASTROPHYSICS AND ASTRONOMY,39(3),13. |
| MLA | Yadav, Jaswant K.,et al."Interactions of galaxies outside clusters and massive groups".JOURNAL OF ASTROPHYSICS AND ASTRONOMY 39.3(2018):13. |
入库方式： OAI收割
来源：国家天文台
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