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 | |
刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC |
2017-12-01 | |
卷号 | 129期号:982 |
关键词 | Galaxies: Evolution Galaxies: Active Infrared: Galaxies Submillimeter: Galaxies Quasars: General |
ISSN号 | 0004-6280 |
DOI | 10.1088/1538-3873/aa8e91 |
产权排序 | 第3完成单位 |
文献子类 | Article |
英文摘要 | 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. |
学科主题 | 天文学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
资助项目 | National 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 |
WOS关键词 | Supermassive Black-holes ; Ultraluminous Infrared Galaxies ; High-redshift ; Submillimeter Observations ; Bayesian-inference ; H-alpha ; Cosmology ; Emission ; Agn ; Protoclusters |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000413706000001 |
资助机构 | 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 |
内容类型 | 期刊论文 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/11960] |
专题 | 云南天文台_大样本恒星演化研究组 |
通讯作者 | Fan, Lulu |
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 |
推荐引用方式 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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