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  1. OA@INAF
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  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/29693
Title: Hubble Frontier Field photometric catalogues of Abell 370 and RXC J2248.7-4431: multiwavelength photometry, photometric redshifts, and stellar properties
Authors: Bradač, Maruša
Huang, Kuang-Han
FONTANA, Adriano 
CASTELLANO, MARCO 
MERLIN, Emiliano 
Amorín, Ricardo
Hoag, Austin
Strait, Victoria
SANTINI, Paola
Ryan, Russell E.
Casertano, Stefano
Lemaux, Brian C.
Lubin, Lori M.
Schmidt, Kasper B.
Schrabback, Tim
Treu, Tommaso
von der Linden, Anja
Mason, Charlotte A.
Wang, Xin
Issue Date: 2019
Journal: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 
Number: 489
Issue: 1
First Page: 99
Abstract: This paper presents multiwavelength photometric catalogues of the last two Hubble Frontier Fields (HFFs), the massive galaxy clusters Abell 370 and RXC J2248.7-4431. The photometry ranges from imaging performed on the Hubble Space Telescope to ground-based Very Large Telescope and Spitzer/Infrared Array Camera, in collaboration with the ASTRODEEP team, and using the ASTRODEEP pipeline. While the main purpose of this paper is to release the catalogues, we also perform, as a proof of concept, a brief analysis of z > 6 objects selected using dropout method, as well as spectroscopically confirmed sources and multiple images in both clusters. While dropout methods yield a sample of high-z galaxies, the addition of longer wavelength data reveals that as expected the samples have substantial contamination at the ∼30-45 per cent level by dusty galaxies at lower redshifts. Furthermore, we show that spectroscopic redshifts are still required to unambiguously determine redshifts of multiply imaged systems. Finally, the now publicly available ASTRODEEP catalogues were combined for all HFFs and used to explore stellar properties of a large sample of 20 000 galaxies across a large photometric redshift range. The powerful magnification provided by the HFF clusters allows for an exploration of the properties of galaxies with intrinsic stellar masses as low as M<SUB>*</SUB> ≳ 10<SUP>7</SUP> M<SUB>☉</SUB> and intrinsic star formation rates ∼0.1-1 M<SUB>☉</SUB> yr<SUP>-1</SUP> at z > 6.
URI: http://hdl.handle.net/20.500.12386/29693
URL: https://academic.oup.com/mnras/article/489/1/99/5551490
ISSN: 0035-8711
DOI: 10.1093/mnras/stz2119
Bibcode ADS: 2019MNRAS.489...99B
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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