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"Super-deblended" Dust Emission in Galaxies. I. The GOODS-North Catalog and the Cosmic Star Formation Rate Density out to Redshift 6
Liu, Daizhong1,2,3,4; Daddi, Emanuele2; Dickinson, Mark5; Owen, Frazer6; Pannella, Maurilio7; Sargent, Mark8; Bethermin, Matthieu9,10; Magdis, Georgios11; Gao, Yu1; Shu, Xinwen2,12; Wang, Tao2; Jin, Shuowen2; Inami, Hanae13
2018-02-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume853Issue:2Pages:55
Abstract

We present a new technique to measure multi-wavelength "super-deblended" photometry from highly confused images, which we apply to Herschel and ground-based far-infrared (FIR) and (sub-) millimeter (mm) data in the northern field of the Great Observatories Origins Deep Survey. There are two key novelties. First, starting with a large database of deep Spitzer. 24. mu m and VLA 20. cm detections that are used to define prior positions for fitting the FIR/submm data, we perform an active selection of useful priors independently at each frequency band, moving from less to more confused bands. Exploiting knowledge of redshift and all available photometry, we identify hopelessly faint priors that we remove from the fitting pool. This approach significantly reduces blending degeneracies and allows reliable photometry to be obtained for galaxies in FIR+mm bands. Second, we obtain well-behaved, nearly Gaussian flux density uncertainties, individually tailored to all fitted priors for each band. This is done by exploiting extensive simulations that allow us to calibrate the conversion of formal fitting uncertainties to realistic uncertainties, depending on directly measurable quantities. We achieve deeper detection limits with high fidelity measurements and uncertainties at FIR+mm bands. As an illustration of the utility of these measurements, we identify 70 galaxies with z >= 3 and reliable FIR+mm detections. We present new constraints on the cosmic star formation rate density at 3 < z < 6, finding a significant contribution from z. 3 dusty galaxies that are missed by optical-to-near-infrared color selection. Photometric measurements for 3306 priors, including more than 1000 FIR+mm detections, are released publicly with our catalog.

Keywordgalaxies: ISM galaxies: photometry galaxies: star formation infrared: galaxies techniques: photometric
DOI10.3847/1538-4357/aaa600
WOS KeywordHUBBLE-DEEP-FIELD ; LYMAN-BREAK GALAXIES ; ULTRAVIOLET LUMINOSITY DENSITY ; SPECTRAL ENERGY-DISTRIBUTIONS ; MULTIBAND IMAGING PHOTOMETER ; SPITZER-SPACE-TELESCOPE ; COSMOLOGY LEGACY SURVEY ; INITIAL MASS FUNCTION ; MU-M OBSERVATIONS ; 1.1 MM SURVEY
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000424253400006
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22230
Collection中国科学院紫金山天文台
Corresponding AuthorLiu, Daizhong
Affiliation1.Chinese Acad Sci, Key Lab Radio Astron, Purple Mt Observ, 2 West Bejing Rd, Nanjing, Jiangsu, Peoples R China
2.Univ Paris Diderot, Sorbonne Paris Cite, CNRS, CEA,IRFU,DAp,AIM,Univ Paris Saclay, F-91191 Gif Sur Yvette, France
3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 10049, Peoples R China
4.Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany
5.Natl Opt Astron Observ, Tucson, AZ 85719 USA
6.Natl Radio Astron Observ, Socorro, NM 87801 USA
7.Ludwig Maximilians Univ Munchen, Fac Phys, Scheinerstr 1, D-81679 Munich, Germany
8.Univ Sussex, Dept Phys & Astron, Astron Ctr, Brighton BN1 9QH, E Sussex, England
9.European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany
10.Aix Marseille Univ, CNRS, LAM, Marseille, France
11.Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, Juliane Mariesvej 30, DK-2100 Copenhagen, Denmark
12.Anhui Normal Univ, Wuhu, Anhui, Peoples R China
13.Observ Lyon, 9 Ave Charles Andre, F-69561 St Genis Laval, France
Recommended Citation
GB/T 7714
Liu, Daizhong,Daddi, Emanuele,Dickinson, Mark,et al. "Super-deblended" Dust Emission in Galaxies. I. The GOODS-North Catalog and the Cosmic Star Formation Rate Density out to Redshift 6[J]. ASTROPHYSICAL JOURNAL,2018,853(2):55.
APA Liu, Daizhong.,Daddi, Emanuele.,Dickinson, Mark.,Owen, Frazer.,Pannella, Maurilio.,...&Inami, Hanae.(2018)."Super-deblended" Dust Emission in Galaxies. I. The GOODS-North Catalog and the Cosmic Star Formation Rate Density out to Redshift 6.ASTROPHYSICAL JOURNAL,853(2),55.
MLA Liu, Daizhong,et al.""Super-deblended" Dust Emission in Galaxies. I. The GOODS-North Catalog and the Cosmic Star Formation Rate Density out to Redshift 6".ASTROPHYSICAL JOURNAL 853.2(2018):55.
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