Planck-cmb-allsky

SPLASH-SXDF Multi-wavelength Photometric Catalog

April 2018 • 2018ApJS..235...36M

Authors • Mehta, Vihang • Scarlata, Claudia • Capak, Peter • Davidzon, Iary • Faisst, Andreas • Hsieh, Bau Ching • Ilbert, Olivier • Jarvis, Matt • Laigle, Clotilde • Phillips, John • Silverman, John • Strauss, Michael A. • Tanaka, Masayuki • Bowler, Rebecca • Coupon, Jean • Foucaud, Sébastien • Hemmati, Shoubaneh • Masters, Daniel • McCracken, Henry Joy • Mobasher, Bahram • Ouchi, Masami • Shibuya, Takatoshi • Wang, Wei-Hao

Abstract • 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 deg2, with ∼800,000 objects in the 2.4 deg2 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.

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IPAC Authors
(alphabetical)

12768206_10207680298142085_4548014584785502315_o

Andreas Faisst

Assistant Scientist


Elise_furlan

Elise Furlan

Associate Scientist


Shooby

Shoubaneh Hemmati

Assistant Scientist


Daniel Masters

Assistant Scientist