MOIRCS Deep Survey. IX. Deep Near-Infrared Imaging Data and Source Catalog

TL;DR

This paper presents deep near-infrared imaging data and a comprehensive source catalog from the MOIRCS Deep Survey in the GOODS-North region, enabling detailed studies of high-redshift galaxies.

Contribution

It provides new ultra-deep and wide-field near-infrared imaging data, along with a multi-wavelength catalog, facilitating advanced galaxy evolution research.

Findings

Achieved 5sigma limiting magnitudes of J=23.9, H=22.8, Ks=22.8 over 103 arcmin^2

Constructed a multi-wavelength photometric catalog of Ks-selected sources

Demonstrated selection techniques for high-redshift galaxies using NIR colors

Abstract

We present deep J-, H-, and Ks-band imaging data of the MOIRCS Deep Survey (MODS), which was carried out with Multi-Object Infrared Camera and Spectrograph (MOIRCS) mounted on the Subaru telescope in the GOODS-North region. The data reach 5sigma total limiting magnitudes for point sources of J=23.9, H=22.8, and Ks=22.8 (Vega magnitude) over 103 arcmin^2 (wide field). In 28 arcmin^2 of the survey area, which is ultra deep field of the MODS (deep field), the data reach the 5sigma depths of J=24.8, H=23.4, and Ks=23.8. The spatial resolutions of the combined images are FWHM ~ 0.6 arcsec and ~ 0.5 arcsec for the wide and deep fields in all bands, respectively. Combining the MODS data with the multi-wavelength public data taken with the HST, Spitzer, and other ground-based telescopes in the GOODS field, we construct a multi-wavelength photometric catalog of Ks-selected sources. Using the catalog, we present Ks-band number counts and near-infrared color distribution of the detected objects, and demonstrate some selection techniques with the NIR colors for high redshift galaxies. These data and catalog are publicly available via internet.