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Spectral Classification and Ionized Gas Outflows in z similar to 2 WISE-selected Hot Dust-obscured Galaxies

文献类型：期刊论文

作者Jun, Hyunsung D.1,2; Assef, Roberto J.3; Bauer, Franz E.4,5,6,7; Blain, Andrew8; Diaz-Santos, Tanio9; Eisenhardt, Peter R. M.2; Stern, Daniel2; Tsai, Chao-Wei10; Wright, Edward L.11; Wu, Jingwen10
刊名ASTROPHYSICAL JOURNAL
出版日期2020-01-10
卷号888期号:2页码:22
关键词Active galaxies
ISSN号0004-637X
DOI10.3847/1538-4357/ab5e7b
英文摘要We present Very Large Telescope/XSHOOTER rest-frame UV-optical spectra of 10 hot dust-obscured galaxies (Hot DOGs) at z similar to 2 to investigate active galactic nucleus (AGN) diagnostics and assess the presence and effect of ionized gas outflows. Most Hot DOGs in this sample are narrow-line-dominated AGNs (type 1.8 or higher) and have higher Balmer decrements than typical type 2 quasars. Almost all (8/9) sources show evidence for ionized gas outflows in the form of broad and blueshifted [O iii] profiles, and some sources have such profiles in H alpha (5/7) or [O ii] (3/6). Combined with the literature, these results support additional sources of obscuration beyond the simple torus invoked by AGN unification models. Outflow rates derived from the broad [O iii] line (greater than or similar to 10(3) M yr(-1)) are greater than the black hole accretion and star formation rates, with feedback efficiencies (similar to 0.1%-1%) consistent with negative feedback to the host galaxy's star formation in merger-driven quasar activity scenarios. We find that the broad emission lines in luminous, obscured quasars are often better explained by outflows within the narrow-line region and caution that black hole mass estimates for such sources in the literature may have substantial uncertainty. Regardless, we find lower bounds on the Eddington ratio for Hot DOGs near unity.
WOS关键词ACTIVE GALACTIC NUCLEI ; SUPERMASSIVE BLACK-HOLES ; DIGITAL SKY SURVEY ; HEAVILY REDDENED QUASARS ; EXTREMELY RED QUASARS ; NARROW-LINE REGION ; HOST GALAXIES ; X-RAY ; OBSERVATIONAL EVIDENCE ; ELLIPTIC GALAXIES
资助项目National Research Foundation of Korea (NRF) - Ministry of Education[NRF-2017R1A6A3A04005158] ; FONDECYT[1191124] ; CONICYT-Chile[Basal AFB-170002] ; Ministry of Economy, Development, and Tourism's Millennium Science Initiative[IC120009] ; MSTC[2016YFA0400702] ; NSFC[11673029] ; National Aeronautics and Space Administration
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000520597700001
出版者IOP PUBLISHING LTD
资助机构National Research Foundation of Korea (NRF) - Ministry of Education ; National Research Foundation of Korea (NRF) - Ministry of Education ; FONDECYT ; FONDECYT ; CONICYT-Chile ; CONICYT-Chile ; Ministry of Economy, Development, and Tourism's Millennium Science Initiative ; Ministry of Economy, Development, and Tourism's Millennium Science Initiative ; MSTC ; MSTC ; NSFC ; NSFC ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Research Foundation of Korea (NRF) - Ministry of Education ; National Research Foundation of Korea (NRF) - Ministry of Education ; FONDECYT ; FONDECYT ; CONICYT-Chile ; CONICYT-Chile ; Ministry of Economy, Development, and Tourism's Millennium Science Initiative ; Ministry of Economy, Development, and Tourism's Millennium Science Initiative ; MSTC ; MSTC ; NSFC ; NSFC ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Research Foundation of Korea (NRF) - Ministry of Education ; National Research Foundation of Korea (NRF) - Ministry of Education ; FONDECYT ; FONDECYT ; CONICYT-Chile ; CONICYT-Chile ; Ministry of Economy, Development, and Tourism's Millennium Science Initiative ; Ministry of Economy, Development, and Tourism's Millennium Science Initiative ; MSTC ; MSTC ; NSFC ; NSFC ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Research Foundation of Korea (NRF) - Ministry of Education ; National Research Foundation of Korea (NRF) - Ministry of Education ; FONDECYT ; FONDECYT ; CONICYT-Chile ; CONICYT-Chile ; Ministry of Economy, Development, and Tourism's Millennium Science Initiative ; Ministry of Economy, Development, and Tourism's Millennium Science Initiative ; MSTC ; MSTC ; NSFC ; NSFC ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration
源URL[http://ir.bao.ac.cn/handle/114a11/55731]  
专题中国科学院国家天文台
通讯作者Jun, Hyunsung D.
作者单位1.Korea Inst Adv Study, Sch Phys, 85 Hoegiro, Seoul 02455, South Korea
2.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA
3.Univ Diego Portales, Fac Ingn & Ciencias, Nucleo Astron, Av Ejercito Libertador 441, Santiago, Chile
4.Pontificia Univ Catolica Chile, Fac Fis, Inst Astrofis, Casilla 306, Santiago 22, Chile
5.Pontificia Univ Catolica Chile, Fac Fis, Ctr Astroingn, Casilla 306, Santiago 22, Chile
6.Millennium Inst Astrophys MAS, Nuncio Monsenor Sotero Sanz 100, Santiago, Chile
7.Space Sci Inst, 4750 Walnut St,Suite 205, Boulder, CO 80301 USA
8.Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England
9.Univ Diego Portales, Nucleo Astron, Fac Ingn, Av Ejercito Libertador 441, Santiago, Chile
10.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
推荐引用方式
GB/T 7714		 Jun, Hyunsung D.,Assef, Roberto J.,Bauer, Franz E.,et al. Spectral Classification and Ionized Gas Outflows in z similar to 2 WISE-selected Hot Dust-obscured Galaxies[J]. ASTROPHYSICAL JOURNAL,2020,888(2):22.
APA Jun, Hyunsung D..,Assef, Roberto J..,Bauer, Franz E..,Blain, Andrew.,Diaz-Santos, Tanio.,...&Wu, Jingwen.(2020).Spectral Classification and Ionized Gas Outflows in z similar to 2 WISE-selected Hot Dust-obscured Galaxies.ASTROPHYSICAL JOURNAL,888(2),22.
MLA Jun, Hyunsung D.,et al."Spectral Classification and Ionized Gas Outflows in z similar to 2 WISE-selected Hot Dust-obscured Galaxies".ASTROPHYSICAL JOURNAL 888.2(2020):22.

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来源：国家天文台

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