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Narrow-band photometry applications for galactic archaeology
Full text | |
Author(s): Show less - |
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: Show less - | [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 Opportunities: | Scholarships in Brazil - Post-Doctoral |