HIGH-z QUASARS IN THE R-h = ct UNIVERSE
文献类型：期刊论文
| 作者 | Melia, Fulvio1,2,3 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2013-02-10 |
| 卷号 | 764期号:1页码:1-5 |
| 关键词 | cosmology: observations cosmology: theory dark ages, reionization, first stars early universe quasars: general large-scale structure of universe |
| ISSN号 | 0004-637X |
| 通讯作者 | Melia, F (reprint author), Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China. Email: melia@as.arizona.edu |
| 英文摘要 | One cannot understand the early appearance of 10(9)M(circle dot) supermassive black holes without invoking anomalously high accretion rates or the creation of exotically massive seeds, neither of which is seen in the local universe. Recent observations have compounded this problem by demonstrating that most, if not all, of the high-z quasars appear to be accreting at the Eddington limit. In the context of Lambda CDM, the only viable alternative now appears to be the assemblage of supermassive black holes via mergers, as long as the seeds started forming at redshifts > 40, but ceased being created by z similar to 20-30. In this paper, we show that, whereas the high-z quasars may be difficult to explain within the framework of the standard model, they can instead be interpreted much more sensibly in the context of the R-h = ct universe. In this cosmology, 5-20 M-circle dot seeds produced after the onset of re-ionization (at z less than or similar to 15) could have easily grown to M greater than or similar to 10(9) M-circle dot by z greater than or similar to 6, merely by accreting at the standard Eddington rate. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SUPERMASSIVE BLACK-HOLES ; SIMILAR-TO 6 ; NEAR-INFRARED SPECTROSCOPY ; ACTIVE GALACTIC NUCLEI ; Z-SIMILAR-TO-6 QUASARS ; REDSHIFT QUASARS ; EVOLUTION ; GALAXIES ; GROWTH ; LUMINOSITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000314335200072 |
| 公开日期 | 2014-01-08 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/9756]  |
| 专题 | 紫金山天文台_暗物质和空间天文实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Arizona, Dept Phys, Program Appl Math, Tucson, AZ 85721 USA 3.Univ Arizona, Dept Astron, Tucson, AZ 85721 USA |
| 推荐引用方式 GB/T 7714 | Melia, Fulvio. HIGH-z QUASARS IN THE R-h = ct UNIVERSE[J]. ASTROPHYSICAL JOURNAL,2013,764(1):1-5. |
| APA | Melia, Fulvio.(2013).HIGH-z QUASARS IN THE R-h = ct UNIVERSE.ASTROPHYSICAL JOURNAL,764(1),1-5. |
| MLA | Melia, Fulvio."HIGH-z QUASARS IN THE R-h = ct UNIVERSE".ASTROPHYSICAL JOURNAL 764.1(2013):1-5. |
入库方式： OAI收割
来源：紫金山天文台
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