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SPLASH-SXDF Multi-wavelength Photometric Catalog

Mehta, Vihang and Scarlata, Claudia and Capak, Peter and Davidzon, Iary and Faisst, Andreas and Hsieh, Bau Ching and Ilbert, Olivier and Jarvis, Matt and Laigle, Clotilde and Phillips, John and Silverman, John and Strauss, Michael A. and Tanaka, Masayuki and Bowler, Rebecca and Coupon, Jean and Foucaud, Sébastien and Hemmati, Shoubaneh and Masters, Daniel and McCracken, Henry Joy and Mobasher, Bahram and Ouchi, Masami and Shibuya, Takatoshi and Wang, Wei-Hao (2018) SPLASH-SXDF Multi-wavelength Photometric Catalog. Astrophysical Journal Supplement Series, 235 (2). Art. No. 36. ISSN 1538-4365.

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We present a multi-wavelength catalog in the Subaru/XMM-Newton Deep Field (SXDF) as part of the Spitzer Large Area Survey with Hyper-Suprime-Cam (SPLASH). We include the newly acquired optical data from the Hyper-Suprime-Cam Subaru Strategic Program, accompanied by IRAC coverage from the SPLASH survey. All available optical and near-infrared data is homogenized and resampled on a common astrometric reference frame. Source detection is done using a multi-wavelength detection image including the u-band to recover the bluest objects. We measure multi-wavelength photometry and compute photometric redshifts as well as physical properties for ~1.17 million objects over ~4.2 deg^2, with ~800,000 objects in the 2.4 deg^2 HSC-Ultra-Deep coverage. Using the available spectroscopic redshifts from various surveys over the range of 0 < z < 6, we verify the performance of the photometric redshifts and we find a normalized median absolute deviation of 0.023 and outlier fraction of 3.2%. The SPLASH-SXDF catalog is a valuable, publicly available resource, perfectly suited for studying galaxies in the early universe and tracing their evolution through cosmic time.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Mehta, Vihang0000-0001-7166-6035
Scarlata, Claudia 0000-0002-9136-8876
Davidzon, Iary0000-0002-2951-7519
Faisst, Andreas0000-0002-9382-9832
Hsieh, Bau Ching0000-0001-5615-4904
Ilbert, Olivier0000-0002-7303-4397
Silverman, John0000-0002-0000-6977
Strauss, Michael A.0000-0002-0106-7755
Tanaka, Masayuki0000-0002-5011-5178
Foucaud, Sébastien0000-0001-5603-6262
Hemmati, Shoubaneh0000-0003-2226-5395
Masters, Daniel0000-0001-5382-6138
McCracken, Henry Joy0000-0002-9489-7765
Ouchi, Masami0000-0002-1049-6658
Wang, Wei-Hao0000-0003-2588-1265
Additional Information:© 2018. The American Astronomical Society. Received 2017 November 13; revised 2018 March 5; accepted 2018 March 10; published 2018 April 9. V.M. would like to thank Micaela Bagley for a helpful discussion regarding the photometric errors. V.M. and C.S. acknowledge the support from Jet Propulsion Laboratory under the grant award #RSA-1516084. V.M. also acknowledges support from the University of Minnesota Doctoral Dissertation Fellowship 2016–17. W.H.W. acknowledges the support from the Ministry of Science and Technology of Taiwan grant 105-2112-M- 001-029-MY3. O.I. acknowledges the funding of the French Agence Nationale de la Recherche for the SAGACE project. The Cosmic Dawn Center is funded by the Danish National Research Foundation. This work is based in part on data collected at the Subaru Telescope and retrieved from the HSC data archive system, which is operated by Subaru Telescope and Astronomy Data Center at National Astronomical Observatory of Japan. This work is based in part on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. Support for this work was provided by NASA through an award issued by JPL/Caltech. The Hyper-Suprime-Cam (HSC) collaboration includes the astronomical communities of Japan and Taiwan, and Princeton University. The HSC instrumentation and software were developed by the National Astronomical Observatory of Japan (NAOJ), the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), the University of Tokyo, the High Energy Accelerator Research Organization (KEK), the Academia Sinica Institute for Astronomy and Astrophysics in Taiwan (ASIAA), and Princeton University. Funding was contributed by the FIRST program from Japanese Cabinet Office, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), the Japan Society for the Promotion of Science (JSPS), Japan Science and Technology Agency (JST), the Toray Science Foundation, NAOJ, Kavli IPMU, KEK, ASIAA, and Princeton University. This paper makes use of software developed for the Large Synoptic Survey Telescope. We thank the LSST Project for making their code available as free software at This work is based in part on observations obtained with MegaPrime and MegaCam, a joint project of CFHT and CEA/IRFU, at the Canada–France–Hawaii Telescope (CFHT), which is operated by the National Research Council (NRC) of Canada, the Institut National des Science de l'Univers of the Centre National de la Recherche Scientifique (CNRS) of France, and the University of Hawaii. This work is based in part on data products produced at Terapix available at the Canadian Astronomy Data Centre as part of the Canada–France–Hawaii Telescope Legacy Survey, a collaborative project of NRC and CNRS. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. Facilities: Spitzer - Spitzer Space Telescope satellite, Subaru - , CFHT - , UKIRT - , VISTA - . Software: NumPy, SciPy, AstroPy, Matplotlib, PhotUtils, LePhare, SExtractor, SCAMP, SWARP, PSFEx.
Group:Infrared Processing and Analysis Center (IPAC), SPLASH, COSMOS
Funding AgencyGrant Number
University of MinnesotaUNSPECIFIED
Ministry of Science and Technology (Taipei)105-2112-M- 001-029-MY3
Agence Nationale pour la Recherche (ANR)UNSPECIFIED
Danish National Research FoundationUNSPECIFIED
Subject Keywords:catalogs; galaxies: high-redshift; galaxies: photometry; methods: observational; techniques: photometric
Record Number:CaltechAUTHORS:20180409-153352660
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Official Citation:Vihang Mehta et al 2018 ApJS 235 36
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:85698
Deposited By: George Porter
Deposited On:09 Apr 2018 22:54
Last Modified:09 Apr 2018 22:54

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