The Role of the Most Luminous Obscured AGNs in Galaxy Assembly at z similar to 2
文献类型：期刊论文
| 作者 | Blain, Andrew7; Tsai, Chao-Wei3; Petty, Sara8; Farrah, Duncan13; Connolly, Brian1; Jones, Suzy10; Benford, Dominic11; Eisenhardt, Peter4; Bridge, Carrie4; Jarrett, Tom2 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2017-08-01 |
| 卷号 | 844期号:2 |
| 关键词 | Galaxies: Evolution Galaxies: High-redshift Galaxies: Starburst Quasars: General |
| DOI | 10.3847/1538-4357/aa78f2 |
| 文献子类 | Article |
| 英文摘要 | We present Hubble Space Telescope WFC3 F160W imaging and infrared spectral energy distributions for 12 extremely luminous, obscured active galactic nuclei (AGNs) at 1.8 < z < 2.7. selected via "hot, dust-obscured" mid-infrared colors. Their infrared luminosities span (2-15) x 10(13) L-circle dot, making them among the most luminous objects in the universe at z similar to 2. In all cases, the infrared emission is consistent with arising at least for the. most part from AGN activity. The AGN fractional luminosities are higher than those in either submillimeter galaxies. or AGNs selected via other mid-infrared criteria. Adopting the G, M-20, and A morphological parameters, together with traditional classification boundaries, infers that three-quarters of the sample are mergers. Our sample does not, however, show any correlation between the considered morphological parameters and either infrared luminosity or AGN fractional luminosity. Moreover, the asymmetries and effective radii of our sample are distributed identically to those of massive galaxies at z similar to 2. We conclude that our sample is not preferentially associated with mergers, though a significant merger fraction is still plausible. Instead, we propose that our sample includes. examples of the massive galaxy population at z similar to 2 that harbor a briefly luminous, "flickering" AGN. and in which the G and M-20 values have been perturbed. due to either the AGN. and/or the earliest formation stages of a bulge in an inside-out manner. Furthermore, we find that the mass assembly of the central black holes in our sample leads the mass assembly of any bulge component. Finally, we speculate that our sample represents. a small fraction of the immediate antecedents of compact star-forming galaxies at z similar to 2. |
| WOS关键词 | ACTIVE GALACTIC NUCLEI ; STAR-FORMING GALAXIES ; ULTRALUMINOUS INFRARED GALAXIES ; SPITZER-SPACE-TELESCOPE ; SPECTRAL ENERGY-DISTRIBUTIONS ; INTEGRAL FIELD SPECTROSCOPY ; SUPERMASSIVE BLACK-HOLES ; EXTREMELY RED QUASARS ; UV-SELECTED GALAXIES ; SURVEY-EXPLORER WISE |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000406396300007 |
| 资助机构 | NASA(HST-GO-12585) ; NASA(HST-GO-12585) ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; FONDECYT(1151408) ; FONDECYT(1151408) ; NASA(HST-GO-12585) ; NASA(HST-GO-12585) ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; FONDECYT(1151408) ; FONDECYT(1151408) |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8879]  |
| 专题 | 国家天文台_射电天文研究部 |
| 作者单位 | 1.Cincinnati Childrens Hosp Med Ctr, 3333 Burnet Ave, Cincinnati, OH 45229 USA 2.Univ Cape Town, Dept Astron, ZA-7700 Rondebosch, Capetown, South Africa 3.Univ Calif Los Angeles, Phys & Astron Dept, Los Angeles, CA 90095 USA 4.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA 5.Natl Radio Astron Observ, 520 Edgemont Rd, Charlottesville, VA 22903 USA 6.European Univ Cyprus, Sch Sci, Diogenes St, CY-1516 Nicosia, Cyprus 7.Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England 8.Green Sci Policy Inst, Berkeley, CA 94709 USA 9.Univ Diego Portales, Fac Ingn, Nucleo Astron, Ave Ejercito Libertador 441, Santiago, Chile 10.Chalmers, Dept Space Earth & Environm, Onsala Space Observ, SE-43992 Onsala, Sweden |
| 推荐引用方式 GB/T 7714 | Blain, Andrew,Tsai, Chao-Wei,Petty, Sara,et al. The Role of the Most Luminous Obscured AGNs in Galaxy Assembly at z similar to 2[J]. ASTROPHYSICAL JOURNAL,2017,844(2). |
| APA | Blain, Andrew.,Tsai, Chao-Wei.,Petty, Sara.,Farrah, Duncan.,Connolly, Brian.,...&Assef, Roberto.(2017).The Role of the Most Luminous Obscured AGNs in Galaxy Assembly at z similar to 2.ASTROPHYSICAL JOURNAL,844(2). |
| MLA | Blain, Andrew,et al."The Role of the Most Luminous Obscured AGNs in Galaxy Assembly at z similar to 2".ASTROPHYSICAL JOURNAL 844.2(2017). |
入库方式： OAI收割
来源：国家天文台
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