NAOC Open IR
A Systematic Search for the Reddest Far-infrared and Submillimeter Galaxies: Revealing Dust-embedded Starbursts at High Redshifts
Yan,Haojing1; Ma,Zhiyuan2; Huang,Jia-Sheng3; Fan,Lulu4,5,6
2020-06-25
Source PublicationThe Astrophysical Journal Supplement Series
ISSN0067-0049
Volume249Issue:1
AbstractAbstract We present the results of our systematic search for the reddest far-infrared (FIR) and submillimeter (sub-mm) galaxies using the data from the Herschel?Multi-tiered Extragalactic Survey (HerMES) and the SCUBA2 Cosmological Legacy Survey (S2CLS). The red FIR galaxies are “500 μm risers,” whose spectral energy distributions increase with wavelength across the three FIR passbands of the Spectral and Photometric Imaging REceiver (SPIRE) of Herschel. Within 106.5 deg2 of the HerMES fields, we have selected 629 500 μm risers. The red sub-mm galaxies are “SPIRE drop-outs,” which are prominent detections in the S2CLS 850 μm data but are extremely weak or invisible in the SPIRE bands. Within the 2.98 deg2 common area of HerMES and S2CLS, we have selected 95 such objects. These very red sources could be dusty starbursts at high redshifts (z???4–6) because the peak of their cold-dust emission heated by star formation is shifted to the reddest FIR/sub-mm bands. The surface density of 500 μm risers is ~8.2 deg?2 at the ≥20 mJy level in 500 μm, while that of SPIRE drop-outs is ~19.3 deg?2 at the ≥5 mJy level in 850 μm. Both types of objects could span a wide range of redshifts, however. Using deep radio data in these fields to further select the ones likely at the highest redshifts, we find that the surface density of z?>?6 candidates is 5.5 deg?2 among 500 μm risers and is 0.8–13.6 deg?2 among SPIRE drop-outs. If this is correct, the dust-embedded star formation processes in such objects could contribute comparably as Lyman-break galaxies to the global SFR density at z?>?6.
KeywordGalaxy evolution Ultraluminous infrared galaxies High-redshift galaxies Starburst galaxies Submillimeter astronomy Radio sources Blazars
DOI10.3847/1538-4365/ab964a
Language英语
WOS IDIOP:0067-0049-249-1-ab964a
PublisherThe American Astronomical Society
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/63788
Collection中国科学院国家天文台
Affiliation1.Department of Physics and Astronomy, University of Missouri-Columbia, USA; yanha@missouri.edu
2.Department of Astronomy, University of Massachusetts, Amherst, USA; zhiyuanma@umass.edu
3.CASSACA, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China; jhuang@nao.cas.cn
4.CAS Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, Hefei 230026, People’s Republic of China; llfan@ustc.edu.cn
5.School of Astronomy and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
6.Shandong Provincial Key Lab of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Science, Shandong University, Weihai, 264209, People’s Republic of China
Recommended Citation
GB/T 7714
Yan,Haojing,Ma,Zhiyuan,Huang,Jia-Sheng,et al. A Systematic Search for the Reddest Far-infrared and Submillimeter Galaxies: Revealing Dust-embedded Starbursts at High Redshifts[J]. The Astrophysical Journal Supplement Series,2020,249(1).
APA Yan,Haojing,Ma,Zhiyuan,Huang,Jia-Sheng,&Fan,Lulu.(2020).A Systematic Search for the Reddest Far-infrared and Submillimeter Galaxies: Revealing Dust-embedded Starbursts at High Redshifts.The Astrophysical Journal Supplement Series,249(1).
MLA Yan,Haojing,et al."A Systematic Search for the Reddest Far-infrared and Submillimeter Galaxies: Revealing Dust-embedded Starbursts at High Redshifts".The Astrophysical Journal Supplement Series 249.1(2020).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yan,Haojing]'s Articles
[Ma,Zhiyuan]'s Articles
[Huang,Jia-Sheng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yan,Haojing]'s Articles
[Ma,Zhiyuan]'s Articles
[Huang,Jia-Sheng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yan,Haojing]'s Articles
[Ma,Zhiyuan]'s Articles
[Huang,Jia-Sheng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.