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Title: Photometric Calibration for the Beijing–Arizona Sky Survey and Mayall z -band Legacy Survey

Abstract

We present the photometric calibration of the Beijing–Arizona Sky Survey and Mayall z-band Legacy Survey, which are two of the three wide-field optical legacy imaging surveys to provide the baseline targeting data for the Dark Energy Spectroscopic Instrument project. The method of our photometric calibration is subdivided into the external and internal processes. The former utilizes the point-source objects of Pan-STARRS1 survey (PS1) as the reference standards to achieve the zero points of the absolute flux for individual exposures. And then the latter revise the zero points to make them consistent across the survey based on multiple tilings and large offset overlaps. Our process achieves a homogeneous photometric calibration over most of the sky with precision better than 10 mmag for g and r bands, 15 mmag for z band. The accuracy of the calibration is better than 1% at the bright end (16–18 mag) over most of the survey area.

Authors:
ORCiD logo [1];  [1];  [1];  [2];  [1];  [1];  [3];  [4];  [3];  [3];  [5];  [2];  [1];  [6];  [7];  [2];  [8]
  1. Chinese Academy of Sciences (CAS), Beijing (China)
  2. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China)
  3. Univ. of Arizona, Tucson, AZ (United States). Steward Observatory
  4. Peking Univ., Beijing (China)
  5. National Optical Astronomy Observatory (NOAO), Tuscon, AZ (United States) and La Serena (Chile)
  6. Univ. of Science and Technology of China, Hefei (China)
  7. Nanjing Normal Univ. (China)
  8. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Org.:
USDOE
OSTI Identifier:
1543943
Resource Type:
Accepted Manuscript
Journal Name:
Publications of the Astronomical Society of the Pacific
Additional Journal Information:
Journal Volume: 130; Journal Issue: 990; Journal ID: ISSN 0004-6280
Publisher:
Astronomical Society of the Pacific (ASP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; Astronomy & Astrophysics

Citation Formats

Zhou, Zhimin, Zhou, Xu, Zou, Hu, Zhang, Tianmeng, Nie, Jundan, Peng, Xiyan, Fan, Xiaohui, Jiang, Linhua, McGreer, Ian, Yang, Jinyi, Dey, Arjun, Ma, Jun, Wang, Jiali, Kong, Xu, Yuan, Qirong, Wu, Hong, and Schlegel, David. Photometric Calibration for the Beijing–Arizona Sky Survey and Mayall z -band Legacy Survey. United States: N. p., 2018. Web. doi:10.1088/1538-3873/aaca7e.
Zhou, Zhimin, Zhou, Xu, Zou, Hu, Zhang, Tianmeng, Nie, Jundan, Peng, Xiyan, Fan, Xiaohui, Jiang, Linhua, McGreer, Ian, Yang, Jinyi, Dey, Arjun, Ma, Jun, Wang, Jiali, Kong, Xu, Yuan, Qirong, Wu, Hong, & Schlegel, David. Photometric Calibration for the Beijing–Arizona Sky Survey and Mayall z -band Legacy Survey. United States. doi:10.1088/1538-3873/aaca7e.
Zhou, Zhimin, Zhou, Xu, Zou, Hu, Zhang, Tianmeng, Nie, Jundan, Peng, Xiyan, Fan, Xiaohui, Jiang, Linhua, McGreer, Ian, Yang, Jinyi, Dey, Arjun, Ma, Jun, Wang, Jiali, Kong, Xu, Yuan, Qirong, Wu, Hong, and Schlegel, David. Thu . "Photometric Calibration for the Beijing–Arizona Sky Survey and Mayall z -band Legacy Survey". United States. doi:10.1088/1538-3873/aaca7e. https://www.osti.gov/servlets/purl/1543943.
@article{osti_1543943,
title = {Photometric Calibration for the Beijing–Arizona Sky Survey and Mayall z -band Legacy Survey},
author = {Zhou, Zhimin and Zhou, Xu and Zou, Hu and Zhang, Tianmeng and Nie, Jundan and Peng, Xiyan and Fan, Xiaohui and Jiang, Linhua and McGreer, Ian and Yang, Jinyi and Dey, Arjun and Ma, Jun and Wang, Jiali and Kong, Xu and Yuan, Qirong and Wu, Hong and Schlegel, David},
abstractNote = {We present the photometric calibration of the Beijing–Arizona Sky Survey and Mayall z-band Legacy Survey, which are two of the three wide-field optical legacy imaging surveys to provide the baseline targeting data for the Dark Energy Spectroscopic Instrument project. The method of our photometric calibration is subdivided into the external and internal processes. The former utilizes the point-source objects of Pan-STARRS1 survey (PS1) as the reference standards to achieve the zero points of the absolute flux for individual exposures. And then the latter revise the zero points to make them consistent across the survey based on multiple tilings and large offset overlaps. Our process achieves a homogeneous photometric calibration over most of the sky with precision better than 10 mmag for g and r bands, 15 mmag for z band. The accuracy of the calibration is better than 1% at the bright end (16–18 mag) over most of the survey area.},
doi = {10.1088/1538-3873/aaca7e},
journal = {Publications of the Astronomical Society of the Pacific},
number = 990,
volume = 130,
place = {United States},
year = {2018},
month = {6}
}

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