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The SCUBA-2 850 mu m Follow-up of WISE-selected, Luminous Dust-obscured Quasars
Fan, Lulu1; Jones, Suzy F.2; Han YK(韩云坤)3; Knudsen, Kirsten K.2
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
2017-12-01
Volume129Issue:982
DOI10.1088/1538-3873/aa8e91
Contribution Rank第3完成单位
Indexed BySCI
KeywordGalaxies: Evolution Galaxies: Active Infrared: Galaxies Submillimeter: Galaxies Quasars: General
Abstract

Hot dust-obscured galaxies (Hot DOGs) are a new population recently discovered in the Wide-field Infrared Survey Explorer All-Sky survey. Multiwavelength follow-up observations suggest that they are luminous, dust-obscured quasars at high redshift. Here we present the JCMT SCUBA-2 850 mu m follow-up observations of 10 Hot DOGs. Four out of ten Hot DOGs have been detected at >3 sigma level. Based on the IR SED decomposition approach, we derive the IR luminosities of AGN torus and cold dust components. Hot DOGs in our sample are extremely luminous with most of them having L-IR(tot) > 10(14) L-circle dot. The torus emissions dominate the total IR energy output. However, the cold dust contribution is still non-negligible, with the fraction of the cold dust contribution to the total IR luminosity (similar to 8%-24%) being dependent on the choice of torus model. The derived cold dust temperatures in Hot DOGs are comparable to those in UV bright quasars with similar IR luminosity, but much higher than those in SMGs. Higher dust temperatures in Hot DOGs may be due to the more intense radiation field caused by intense starburst and obscured AGN activities. Fourteen and five submillimeter serendipitous sources in the 10 SCUBA-2 fields around Hot DOGs have been detected at >3 sigma and >3.5 sigma levels, respectively. By estimating their cumulative number counts, we confirm the previous argument that Hot DOGs lie in dense environments. Our results support the scenario in which Hot DOGs are luminous, dust-obscured quasars lying in dense environments, and being in the transition phase between extreme starburst and UV-bright quasars.

Funding ProjectNational Key R&D Program of China[2017YFA0402703] ; National Natural Science Foundation of China (NSFC)[11773020] ; National Natural Science Foundation of China (NSFC)[11773063] ; National Natural Science Foundation of China (NSFC)[11433005] ; Shandong Provincial Natural Science Foundation, China[ZR2017QA001] ; Knut and Alice Wallenberg Foundation ; Chinese Academy of Sciences[XDB09000000] ; Science and Technology Facilities Council of the United Kingdom
Funding OrganizationNational Key R&D Program of China[2017YFA0402703] ; National Natural Science Foundation of China (NSFC)[11773020, 11773063, 11433005] ; Shandong Provincial Natural Science Foundation, China[ZR2017QA001] ; Knut and Alice Wallenberg Foundation ; Chinese Academy of Sciences[XDB09000000] ; Science and Technology Facilities Council of the United Kingdom
Language英语
Subject Area天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-6280
URL查看原文
WOS IDWOS:000413706000001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSupermassive Black-holes ; Ultraluminous Infrared Galaxies ; High-redshift ; Submillimeter Observations ; Bayesian-inference ; H-alpha ; Cosmology ; Emission ; Agn ; Protoclusters
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/11960
Collection大样本恒星演化研究组
Corresponding AuthorFan, Lulu
Affiliation1.Shandong Provincial Key Lab of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Science, Shandong University, Weihai, 264209, China
2.Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden
3.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650011, China
Recommended Citation
GB/T 7714
Fan, Lulu,Jones, Suzy F.,Han YK,et al. The SCUBA-2 850 mu m Follow-up of WISE-selected, Luminous Dust-obscured Quasars[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2017,129(982).
APA Fan, Lulu,Jones, Suzy F.,Han YK,&Knudsen, Kirsten K..(2017).The SCUBA-2 850 mu m Follow-up of WISE-selected, Luminous Dust-obscured Quasars.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,129(982).
MLA Fan, Lulu,et al."The SCUBA-2 850 mu m Follow-up of WISE-selected, Luminous Dust-obscured Quasars".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 129.982(2017).
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