IRAS F21013-0739: a possible evolutionary successor of an ultraluminous infrared galaxy
文献类型：期刊论文
| 作者 | Meng, Xian-Min1,2 ; Wu, Hong1; Cao, Chen3
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2011-04-01 |
| 卷号 | 11期号:4页码:419-433 |
| 关键词 | infrared: galaxies galaxies: evolution galaxies: starburst galaxies: individual (IRAS F21013-0739) galaxies: stellar content |
| 英文摘要 | We present a stellar population synthesis study of a type II luminous infrared galaxy, IRAS F21013-0739. Optical images show clear characteristics of a merger remnant. The H-band absolute magnitude is M-H = -25.1, which is similar to 2 times as luminous as L* galaxies. Stellar populations are obtained through the stellar synthesis code STARLIGHT. We find that it experienced a recent starburst (SB) phase similar to 100 Myr ago. By reconstructing the ultraviolet-to-optical spectrum, and adopting Calzetti et al. and Leitherer et al.'s extinction curves, we estimate the past infrared (IR) luminosities of the host galaxy and find it may have experienced an ultraluminous infrared galaxy phase which lasted for about 100 Myr. Its i-band absolute magnitude is M-i = -22.463, and its spectral type shows type 2 active galactic nucleus (AGN) characteristics. The mass of the supermassive black-hole is estimated to be M-BH = 1.6 x 10(7) M-circle dot (lower-limit). The Eddington ratio L-bol/L-Edd is 0.15, which is typical of Palomar-Green (PG) quasars. Both the nuclear SB and AGN contribute to the present IR luminosity budget, and the SB contributes similar to 67%. On the diagram of IR color versus IR/optical excess, it is located between IR quasars and PG quasars. These results indicate that IRAS F21013-0739 has probably evolved from a ULIRG, and it can possibly evolve into an AGN. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000289611900005 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8092]  |
| 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, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 3.Shandong Univ, Weihai 264209, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Xian-Min,Wu, Hong,Cao, Chen. IRAS F21013-0739: a possible evolutionary successor of an ultraluminous infrared galaxy[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2011,11(4):419-433. |
| APA | Meng, Xian-Min,Wu, Hong,&Cao, Chen.(2011).IRAS F21013-0739: a possible evolutionary successor of an ultraluminous infrared galaxy.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,11(4),419-433. |
| MLA | Meng, Xian-Min,et al."IRAS F21013-0739: a possible evolutionary successor of an ultraluminous infrared galaxy".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 11.4(2011):419-433. |
入库方式： OAI收割
来源：国家天文台
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