YNAO OpenIR  > 大样本恒星演化研究组
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; Fan, Lulu(Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China)
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
2017-12-01
卷号129期号:982
DOI10.1088/1538-3873/aa8e91
产权排序第3完成单位
收录类别SCI
关键词Galaxies: Evolution Galaxies: Active Infrared: Galaxies Submillimeter: Galaxies Quasars: General
摘要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.
项目资助者National 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
语种英语
学科领域天文学
文章类型Article
ISSN0004-6280
URL查看原文
WOS记录号WOS:000413706000001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]SUPERMASSIVE BLACK-HOLES ; ULTRALUMINOUS INFRARED GALAXIES ; HIGH-REDSHIFT ; SUBMILLIMETER OBSERVATIONS ; BAYESIAN-INFERENCE ; H-ALPHA ; COSMOLOGY ; EMISSION ; AGN ; PROTOCLUSTERS
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/11960
专题大样本恒星演化研究组
通讯作者Fan, Lulu(Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China)
作者单位1.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
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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.,&Fan, Lulu.(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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