ON THE EVOLUTION OF HIGH-REDSHIFT ACTIVE GALACTIC NUCLEI
文献类型：期刊论文
| 作者 | Mao JR(毛基荣)1,2,3 ; Kim, Minsun3
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| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2016-09-10 |
| 卷号 | 828期号:2 |
| ISSN号 | 0004-637X |
| 关键词 | black hole physics cosmology: theory galaxies: active galaxies: evolution quasars: general surveys |
| 通讯作者 | Mao, JR |
| 产权排序 | 第一完成单位 |
| 英文摘要 | We build a simple physical model to study the high-redshift active galactic nucleus (AGN) evolution within the coevolution framework of central black holes (BHs) and their host galaxies. The correlation between the circular velocity of a dark halo V-c and the velocity dispersion of a galaxy sigma is used to link the dark matter halo mass and BH mass. The dark matter halo mass function is converted to the BH mass function for any given redshift. The high-redshift optical AGN luminosity functions (LFs) are constructed. At z similar to 4, the flattening feature is not shown at the faint end of the optical AGN LF. This is consistent with observational results. If the optical AGN LF at z similar to 6 can be reproduced in the case in which central BHs have the Eddington-limited accretion, it is possible for the AGN lifetime to have a small value of 2 x 10(5) years. The X-ray AGN LFs and X-ray AGN number counts are also calculated at 2.0 < z < 5.0 and z > 3, respectively, using the same parameters adopted in the calculation for the optical AGN LF at z similar to 4. It is estimated that about 30 AGNs per deg(2) at z > 6 can be detected with a flux limit of 3 x 10(-17) erg cm(-2) s(-1) in the 0.5-2 keV band. Additionally, the cosmic reionization is also investigated. The ultraviolet photons emitted from the high-redshift AGNs mainly contribute to the cosmic reionization, and the central BHs of the high-redshift AGNs have a mass range of 10(6)-10(8)M(circle dot). We also discuss some uncertainties in both the AGN LFs and AGN number counts originating from the M-BH-sigma relation, Eddington ratio, AGN lifetime, and X-ray attenuation in our model. |
| 学科主题 | Astronomy & Astrophysics |
| 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 ; X-RAY LUMINOSITY ; M-BH-SIGMA ; DEEP FIELD-SOUTH ; SIMILAR-TO 4 ; STAR-FORMING GALAXIES ; QUASI-STELLAR OBJECTS ; LYMAN BREAK GALAXIES ; COSMIC REIONIZATION ; FAINT END |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.3847/0004-637X/828/2/96/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000384237800002 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/9724]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, 650011 Kunming, Yunnan Province, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, China 3.Korea Astronomy and Space Science Institute, 776, Daedeokdae-ro, Yuseong-gu, Daejeon 305-348, Korea |
| 推荐引用方式 GB/T 7714 | Mao JR,Kim, Minsun. ON THE EVOLUTION OF HIGH-REDSHIFT ACTIVE GALACTIC NUCLEI[J]. ASTROPHYSICAL JOURNAL,2016,828(2). |
| APA | Mao JR,&Kim, Minsun.(2016).ON THE EVOLUTION OF HIGH-REDSHIFT ACTIVE GALACTIC NUCLEI.ASTROPHYSICAL JOURNAL,828(2). |
| MLA | Mao JR,et al."ON THE EVOLUTION OF HIGH-REDSHIFT ACTIVE GALACTIC NUCLEI".ASTROPHYSICAL JOURNAL 828.2(2016). |
入库方式： OAI收割
来源：云南天文台
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