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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

YOUNG GALAXY CANDIDATES IN THE HUBBLE FRONTIER FIELDS. II. MACS J0416-2403

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Author(s):
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Infante, Leopoldo [1, 2] ; Zheng, Wei [3] ; Laporte, Nicolas [1, 2] ; Iribarren, Paulina Troncoso [1, 2] ; Molino, Alberto [4, 5] ; Diego, Jose M. [6] ; Bauer, Franz E. [7, 8, 1, 2] ; Zitrin, Adi [9] ; Moustakas, John [10] ; Huang, Xingxing [11] ; Shu, Xinwen [12] ; Bina, David [13] ; Brammer, Gabriel B. [14] ; Broadhurst, Tom [15, 16] ; Ford, Holland C. [3] ; Garcia, Stefano [1, 2] ; Kim, Sam [1, 2]
Total Authors: 17
Affiliation:
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[1] Pontificia Univ Catolica Chile, Fac Fis, Inst Astrofis, Santiago 7820436 - Chile
[2] Pontificia Univ Catolica Chile, Fac Fis, Ctr Astroingn, Santiago 7820436 - Chile
[3] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 - USA
[4] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, BR-05508090 Sao Paulo - Brazil
[5] CSIC, Inst Astrofis Andalucia, E-18008 Granada - Spain
[6] Univ Cantabria, CSIC, Inst Fis Cantabria, IFCA, E-39005 Santander - Spain
[7] Millennium Inst Astrophys, Santiago 7820436 - Chile
[8] Space Sci Inst, Boulder, CO 80301 - USA
[9] CALTECH, Cahill Ctr Astron & Astrophys, Pasadena, CA 91125 - USA
[10] Siena Coll, Dept Phys & Astron, Loudonville, NY 12211 - USA
[11] Univ Sci & Technol China, Dept Astron, Hefei 230026, Anhui - Peoples R China
[12] Anhui Normal Univ, Dept Phys, Wuhu 241000, Anhui - Peoples R China
[13] CNRS, IRAP, F-31400 Toulouse - France
[14] Space Telescope Sci Inst, Baltimore, MD 21218 - USA
[15] Ikerbasque, Basque Fdn Sci, E-48011 Bilbao - Spain
[16] Univ Basque Country, UPV EHU, Dept Theoret Phys, Bilbao - Spain
Total Affiliations: 16
Document type: Journal article
Source: ASTROPHYSICAL JOURNAL; v. 815, n. 1 DEC 10 2015.
Web of Science Citations: 14
Abstract

We searched for z greater than or similar to 7 Lyman-break galaxies in the optical-to-mid-infrared Hubble Frontier Field and associated parallel field observations of the strong-lensing cluster MACS J0416-2403. We discovered 22 candidates, of which 6 lie at z greater than or similar to 9 and 1 lies at z greater than or similar to 10. Based on the Hubble and Spitzer photometry, all have secure photometric redshifts and a negligible probability of being at lower redshifts according to their peak-probability ratios, R. This substantial increase in the number of known high-redshift galaxies allows a solid determination of the luminosity function (LF) at z greater than or similar to 8. The number of high-z candidates in the parallel field is considerably higher than that in the Abell 2744 parallel field. Our candidates have median stellar masses of (M-{*}) similar to log 8.44(-0.31)(+0.55)M(circle dot), star formation rates (SFRs) of similar to 1.8(-0.4)(+0.5) M-circle dot yr(-1), and SFR-weighted ages of less than or similar to 300(-140)(+70) Myr. Finally, we are able to put strong constraints on the z = 7, 8, 9, and 10 LFs. One of the objects in the cluster field is a z similar or equal to 10 candidate, with a magnification of mu similar to 20 +/- 13. This object is likely the faintest z similar to 10 object known to date, allowing a first look into the extreme faint end (L similar to 0.04 L{*}) of the z similar to 10 LF (It is named ``Tayna{''} in the Aymara language). (AU)

FAPESP's process: 14/11806-9 - Challenges for the new generation of wide-field photometric redshift surveys like J-PAS
Grantee:Alberto Molino Benito
Support type: Scholarships in Brazil - Post-Doctorate