TY - JOUR
T1 - ULTRA-DEEP K S-BAND IMAGING of the HUBBLE FRONTIER FIELDS
AU - Brammer, Gabriel B.
AU - Marchesini, Danilo
AU - Labbé, Ivo
AU - Spitler, Lee
AU - Lange-Vagle, Daniel
AU - Barker, Elizbeth A.
AU - Tanaka, Masayuki
AU - Fontana, Adriano
AU - Galametz, Audrey
AU - Ferré-Mateu, Anna
AU - Kodama, Tadayuki
AU - Lundgren, Britt
AU - Martis, Nicholas
AU - Muzzin, Adam
AU - Stefanon, Mauro
AU - Toft, Sune
AU - Wel, Arjen Van Der
AU - Vulcani, Benedetta
AU - Whitaker, Katherine E.
N1 - Funding Information:
We gratefully acknowledge funding support from the STScI Directors Discretionary Research Fund. D.M. acknowledges the support of the Research Corporation for Science Advancements Cottrell Scholarship, and of the National Science Foundation under grant No. 1513473. D.M. and D.L.-V. acknowledge support from program HST-AR-14302, and K.E.W. gratefully acknowledges support by NASA through Hubble Fellowship grant #HF2-51368, both of which are provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555. B.V. acknowledges support from an Australian Research Council Discovery Early Career Researcher Award (PD0028506). M.T. acknowledges support by JSPS KAKENHI grant Number JP15K17617.
Publisher Copyright:
© 2016. The American Astronomical Society. All rights reserved..
PY - 2016/9
Y1 - 2016/9
N2 - We present an overview of the "KIFF" project, which provides ultra-deep K s-band imaging of all six of the Hubble Frontier Fields clusters, Abell 2744, MACS-0416, Abell S1063, Abell 370, MACS-0717, and MACS-1149. All of these fields have recently been observed with large allocations of Directors' Discretionary Time with the Hubble and Spitzer telescopes, covering and 3.6-4.5 , respectively. VLT/HAWK-I integrations of the first four fields reach 5σ limiting depths of (AB, point sources) and have excellent image quality (FWHM ∼ 0.″4). The MACS-0717 and MACS-1149 fields are observable from the northern hemisphere, and shorter Keck/MOSFIRE integrations on those fields reach limiting depths of K s = 25.5 and 25.1, with a seeing FWHM of ∼ 0.″4 and . In all cases the K s-band mosaics cover the primary cluster and parallel HST/ACS+WFC3 fields. The total area of the K s-band coverage is 490 arcmin2. The K s-band at 2.2 crucially fills the gap between the reddest HST filter (1.6 band) and the IRAC 3.6 passband. While reaching the full depths of the space-based imaging is not currently feasible from the ground, the deep K s-band images provide important constraints on both the redshifts and the stellar population properties of galaxies extending well below the characteristic stellar mass across most of the age of the universe, down to and including the redshifts of the targeted galaxy clusters (). Reduced, aligned mosaics of all six survey fields are provided.
AB - We present an overview of the "KIFF" project, which provides ultra-deep K s-band imaging of all six of the Hubble Frontier Fields clusters, Abell 2744, MACS-0416, Abell S1063, Abell 370, MACS-0717, and MACS-1149. All of these fields have recently been observed with large allocations of Directors' Discretionary Time with the Hubble and Spitzer telescopes, covering and 3.6-4.5 , respectively. VLT/HAWK-I integrations of the first four fields reach 5σ limiting depths of (AB, point sources) and have excellent image quality (FWHM ∼ 0.″4). The MACS-0717 and MACS-1149 fields are observable from the northern hemisphere, and shorter Keck/MOSFIRE integrations on those fields reach limiting depths of K s = 25.5 and 25.1, with a seeing FWHM of ∼ 0.″4 and . In all cases the K s-band mosaics cover the primary cluster and parallel HST/ACS+WFC3 fields. The total area of the K s-band coverage is 490 arcmin2. The K s-band at 2.2 crucially fills the gap between the reddest HST filter (1.6 band) and the IRAC 3.6 passband. While reaching the full depths of the space-based imaging is not currently feasible from the ground, the deep K s-band images provide important constraints on both the redshifts and the stellar population properties of galaxies extending well below the characteristic stellar mass across most of the age of the universe, down to and including the redshifts of the targeted galaxy clusters (). Reduced, aligned mosaics of all six survey fields are provided.
KW - galaxies: evolution
KW - galaxies: high-redshift
KW - surveys
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U2 - 10.3847/0067-0049/226/1/6
DO - 10.3847/0067-0049/226/1/6
M3 - Article
AN - SCOPUS:84989812669
SN - 0067-0049
VL - 226
JO - Astrophysical Journal, Supplement Series
JF - Astrophysical Journal, Supplement Series
IS - 1
M1 - 6
ER -