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Abstract
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 0.4 < lambda < 1.6 mu m and 3.6-4.5 mu m, respectively. VLT/HAWK-I integrations of the first four fields reach 5 sigma limiting depths of K-s similar to 26.0 (AB, point sources) and have excellent image quality (FWHM similar to 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 similar to 0 '' 4 and 0.'' 5. 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. arcmin(2). The K-s-band at 2.2 mu m crucially fills the gap between the reddest HST filter (1.6 mu m similar to H band) and the IRAC 3.6 mu m 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 (z less than or similar to 0.5). Reduced, aligned mosaics of all six survey fields are provided.
Keywords
SPECTRAL ENERGY-DISTRIBUTIONS, STELLAR MASS FUNCTION, NEAR-INFRARED, SURVEY, YALE-CHILE MUSYC, RED GALAXIES, HAWK-I, MULTIWAVELENGTH SURVEY, PHOTOMETRIC REDSHIFTS, DENSITY RELATION, ADAPTIVE OPTICS, galaxies: evolution, galaxies: high-redshift, surveys

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MLA
Brammer, Gabriel B et al. “Ultra-deep K-S-band Imaging of the Hubble Frontier Fields.” ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 226.1 (2016): n. pag. Print.
APA
Brammer, G. B., Marchesini, D., Labbe, I., Spitler, L., Lange-Vagle, D., Barker, E. A., Tanaka, M., et al. (2016). Ultra-deep K-S-band imaging of the Hubble Frontier Fields. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 226(1).
Chicago author-date
Brammer, Gabriel B, Danilo Marchesini, Ivo Labbe, Lee Spitler, Daniel Lange-Vagle, Elizbeth A Barker, Masayuki Tanaka, et al. 2016. “Ultra-deep K-S-band Imaging of the Hubble Frontier Fields.” Astrophysical Journal Supplement Series 226 (1).
Chicago author-date (all authors)
Brammer, Gabriel B, Danilo Marchesini, Ivo Labbe, Lee Spitler, Daniel Lange-Vagle, Elizbeth A Barker, Masayuki Tanaka, Adriano Fontana, Audrey Galametz, Anna Ferre-Mateu, Tadayuki Kodama, Britt Lundgren, Nicholas Martis, Adam Muzzin, Mauro Stefanon, Sune Toft, Arjen van der Wel, Benedetta Vulcani, and Katherine E Whitaker. 2016. “Ultra-deep K-S-band Imaging of the Hubble Frontier Fields.” Astrophysical Journal Supplement Series 226 (1).
Vancouver
1.
Brammer GB, Marchesini D, Labbe I, Spitler L, Lange-Vagle D, Barker EA, et al. Ultra-deep K-S-band imaging of the Hubble Frontier Fields. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES. 2016;226(1).
IEEE
[1]
G. B. Brammer et al., “Ultra-deep K-S-band imaging of the Hubble Frontier Fields,” ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, vol. 226, no. 1, 2016.
@article{8567782,
  abstract     = {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 0.4 < lambda < 1.6 mu m and 3.6-4.5 mu m, respectively. VLT/HAWK-I integrations of the first four fields reach 5 sigma limiting depths of K-s similar to 26.0 (AB, point sources) and have excellent image quality (FWHM similar to 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 similar to 0 '' 4 and 0.'' 5. 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. arcmin(2). The K-s-band at 2.2 mu m crucially fills the gap between the reddest HST filter (1.6 mu m similar to H band) and the IRAC 3.6 mu m 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 (z less than or similar to 0.5). Reduced, aligned mosaics of all six survey fields are provided.},
  articleno    = {6},
  author       = {Brammer, Gabriel B and Marchesini, Danilo and Labbe, Ivo and Spitler, Lee and Lange-Vagle, Daniel and Barker, Elizbeth A and Tanaka, Masayuki and Fontana, Adriano and Galametz, Audrey and Ferre-Mateu, Anna and Kodama, Tadayuki and Lundgren, Britt and Martis, Nicholas and Muzzin, Adam and Stefanon, Mauro and Toft, Sune and van der Wel, Arjen and Vulcani, Benedetta and Whitaker, Katherine E},
  issn         = {0067-0049},
  journal      = {ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES},
  keywords     = {SPECTRAL ENERGY-DISTRIBUTIONS,STELLAR MASS FUNCTION,NEAR-INFRARED,SURVEY,YALE-CHILE MUSYC,RED GALAXIES,HAWK-I,MULTIWAVELENGTH SURVEY,PHOTOMETRIC REDSHIFTS,DENSITY RELATION,ADAPTIVE OPTICS,galaxies: evolution,galaxies: high-redshift,surveys},
  language     = {eng},
  number       = {1},
  pages        = {11},
  title        = {Ultra-deep K-S-band imaging of the Hubble Frontier Fields},
  url          = {http://dx.doi.org/10.3847/0067-0049/226/1/6},
  volume       = {226},
  year         = {2016},
}

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