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arXiv · 1711.05280

SPLASH-SXDF Multi-wavelength Photometric Catalog

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

We present a multi-wavelength catalog in the Subaru-XMM 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 stellar masses for $\sim$1.17 million objects over $\sim$4.2 deg$^2$ with $\sim$800,000 objects in the 2.4 deg$^2$ HSC-UltraDeep 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 that is perfectly suited for studying galaxies in the early universe and tracing their evolution through cosmic time. The catalog is available for download from https://z.umn.edu/SXDF .

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Vihang Mehta, Claudia Scarlata, Peter Capak, Iary Davidzon, Andreas Faisst, Bau Ching Hsieh, Clotilde Laigle, John Phillips, John Silverman, Michael A. Strauss, Jean Coupon, Sébastien Foucaud, Shoubaneh Hemmati, Olivier Ilbert, Matt Jarvis, Daniel Masters, Henry Joy McCracken, Bahram Mobasher, Masami Ouchi, Takatoshi Shibuya, Masayuki Tanaka, Wei-Hao Wang. 2017-11-14. SPLASH-SXDF Multi-wavelength Photometric Catalog. https://doi.org/10.3847/1538-4365/aab60c

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