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The BOSS Emission-line Lens Survey. V. Morphology and Substructure of Lensed Ly alpha Emitters at Redshift Z approximate to 2.5 in the BELLS GALLERY
Cornachione, Matthew A.1; Bolton, Adam S.2; Shu, Yiping3,4; Zheng, Zheng1; Montero-Dorta, Antonio D.1,5,6; Brownstein, Joel R.1; Oguri, Masamune7,8,9; Kochanek, Christopher S.10,11; Mao, Shude3,12,13,14; Perez-Fournon, Ismael15,16; Marques-Chaves, Rui15,16; Menard, Brice17
2018-02-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume853Issue:2Pages:11
Corresponding AuthorCornachione, Matthew A.(m.cornachione@utah.edu)
AbstractWe present a morphological study of the 17 lensed Ly alpha emitter (LAE) galaxies of the Baryon Oscillation Spectroscopic Survey Emission-Line Lens Survey (BELLS) for the GALaxy-Ly alpha EmitteR sYstems (BELLS GALLERY) sample. This analysis combines the magnification effect of strong galaxy-galaxy lensing with the high resolution of the Hubble Space Telescope to achieve a physical resolution of similar to 80 pc for this 2 < z < 3 LAE sample, allowing a detailed characterization of the LAE rest-frame ultraviolet continuum surface brightness profiles and substructure. We use lens-model reconstructions of the LAEs to identify and model individual clumps, which we subsequently use to constrain the parameters of a generative statistical model of the LAE population. Since the BELLS GALLERY sample is selected primarily on the basis of Ly alpha emission, the LAEs that we study here are likely to be directly comparable to those selected in wide-field, narrowband LAE surveys, in contrast with the lensed LAEs identified in cluster-lensing fields. We find an LAE clumpiness fraction of approximately 88%, which is significantly higher than that found in previous (non-lensing) studies. We find a well-resolved characteristic clump half-light radii of similar to 350 pc, a scale comparable to the largest H II regions seen in the local universe. This statistical characterization of LAE surface-brightness profiles will be incorporated into future lensing analyses using the BELLS GALLERY sample to constrain the incidence of dark-matter substructure in the foreground lensing galaxies.
Keywordgalaxies: high-redshift galaxies: structure gravitational lensing: strong techniques: high angular resolution
DOI10.3847/1538-4357/aaa412
WOS KeywordSTAR-FORMING GALAXIES ; ULTRA DEEP FIELD ; H II REGIONS ; STELLAR POPULATIONS ; RESOLVED SPECTROSCOPY ; CLUMP-CLUSTER ; EVOLUTION ; LUMINOSITY ; PROFILES ; CONSTRAINTS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000424011300009
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22248
Collection中国科学院紫金山天文台
Corresponding AuthorCornachione, Matthew A.
Affiliation1.Univ Utah, Dept Phys & Astron, 115 South 1400 East, Salt Lake City, UT 84112 USA
2.Natl Opt Astron Observ, 950 N Cherry Ave, Tucson, AZ 85719 USA
3.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China
4.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
5.Univ Sao Paulo, Inst Fis, Dept Fis Matemat, Rua Matao 1371, BR-05508090 Sao Paulo, Brazil
6.CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain
7.Univ Tokyo, Res Ctr Early Universe, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
8.Univ Tokyo, Dept Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
9.Univ Tokyo, WPI, Kavli Inst Phys & Math Universe, Chiba 2778583, Japan
10.Ohio State Univ, Dept Astron, Columbus, OH 43210 USA
11.Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA
12.Tsinghua Univ, Phys Dept, Beijing 100084, Peoples R China
13.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China
14.Univ Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys, Oxford Rd, Manchester M13 9PL, Lancs, England
15.Inst Astrofis Canarias, C Va Lctea S-N, E-38205 Tenerife, Spain
16.Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain
17.Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
Recommended Citation
GB/T 7714
Cornachione, Matthew A.,Bolton, Adam S.,Shu, Yiping,et al. The BOSS Emission-line Lens Survey. V. Morphology and Substructure of Lensed Ly alpha Emitters at Redshift Z approximate to 2.5 in the BELLS GALLERY[J]. ASTROPHYSICAL JOURNAL,2018,853(2):11.
APA Cornachione, Matthew A..,Bolton, Adam S..,Shu, Yiping.,Zheng, Zheng.,Montero-Dorta, Antonio D..,...&Menard, Brice.(2018).The BOSS Emission-line Lens Survey. V. Morphology and Substructure of Lensed Ly alpha Emitters at Redshift Z approximate to 2.5 in the BELLS GALLERY.ASTROPHYSICAL JOURNAL,853(2),11.
MLA Cornachione, Matthew A.,et al."The BOSS Emission-line Lens Survey. V. Morphology and Substructure of Lensed Ly alpha Emitters at Redshift Z approximate to 2.5 in the BELLS GALLERY".ASTROPHYSICAL JOURNAL 853.2(2018):11.
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