4 years ago

SPLASH-SXDF Multi-wavelength Photometric Catalog.

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

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$800,000 objects over $\sim$4.3 deg$^2$. 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 3.4%. 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 .

Publisher URL: http://arxiv.org/abs/1711.05280

DOI: arXiv:1711.05280v1

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