The Faint Optical Counterparts Catalog at 19.4 < r < 22 mag from Herschel-ATLAS SDP Field
Abstract
We carry out a spectroscopic survey with Hectospec mounted on the 6.5 m Multiple Mirror Telescope to obtain redshifts of optical counterparts of the Herschel-ATLAS sources in the science demonstration phase field. Our work concerns counterparts with a magnitude range at $19.4\lt {r}_{\mathrm{SDSS}}\lt 22$ mag. The observation covers two $\sim 1\ {\deg }^{2}$ pointings. In total, we newly obtain redshifts of 158 potential counterparts. Among these counterparts, there are 59 high reliability counterparts. For these high reliability counterparts, we do a SED fitting using MAGPHYS with our spectroscopic redshifts and five Herschel band fluxes, and discover 46 new luminous infra-red galaxies and 10 new ultra luminous infra-red galaxies, including two infra-red QSOs.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- November 2020
- DOI:
- 10.1088/1538-3873/abb766
- Bibcode:
- 2020PASP..132k4101Z
- Keywords:
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- Catalogs;
- Infrared galaxies;
- Luminous infrared galaxies