Re-Calibration of SDF/SXDS Photometric Catalogs of Suprime-Cam with SDSS Data Release 8
Abstract
We present photometric recalibrations of the Subaru Deep Field (SDF) and Subaru/XMM-Newton Deep Survey (SXDS). Recently, Yamanoi et al. (2012, AJ, 144, 40) suggested the existence of a discrepancy between the SDF and SXDS catalogs. We have used the Sloan Digital Sky Survey (SDSS) Data Release 8 (DR8) catalog and compared stars in common between SDF/SXDS and SDSS. We confirmed that there exists a 0.12 mag offset in the B-band between the SDF and SXDS catalogs. Moreover, we found that significant zero-point offsets in the i-band (∼0.10 mag) and the z-band (∼0.14 mag) need to be introduced to the SDF/SXDS catalogs to make it consistent with the SDSS catalog. We report the measured zero point offsets of five filter bands of SDF/SXDS catalogs. We studied the potential cause of these offsets, but the origins are yet to be understood.
- Publication:
-
Publications of the Astronomical Society of Japan
- Pub Date:
- February 2013
- DOI:
- 10.1093/pasj/65.1.22
- arXiv:
- arXiv:1210.0313
- Bibcode:
- 2013PASJ...65...22Y
- Keywords:
-
- galaxies: photometry;
- method: observational;
- techniques: photometric;
- Astrophysics - Instrumentation and Methods for Astrophysics;
- Astrophysics - Cosmology and Nongalactic Astrophysics
- E-Print:
- 36 pages, 19 figures(128 EPS files), PASJ accepted