Photometric calibration for the Beijing–Arizona sky survey and mayall Z-band legacy survey

Zhimin Zhou; Xu Zhou; Hu Zou; Tianmeng Zhang; Jundan Nie; Xiyan Peng; Xiaohui Fan; Linhua Jiang; Ian McGreer; Jinyi Yang; Arjun Dey; Jun Ma; Jiali Wang; Xu Kong; Qirong Yuan; Hong Wu; David Schlegel

doi:10.1088/1538-3873/aaca7e

Photometric calibration for the Beijing–Arizona sky survey and mayall Z-band legacy survey

Zhimin Zhou, Xu Zhou, Hu Zou, Tianmeng Zhang, Jundan Nie, Xiyan Peng, Xiaohui Fan, Linhua Jiang, Ian McGreer, Jinyi Yang, Arjun Dey, Jun Ma, Jiali Wang, Xu Kong, Qirong Yuan, Hong Wu, David Schlegel

Astronomy

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13 Scopus citations

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.

Original language	English (US)
Article number	085001
Journal	Publications of the Astronomical Society of the Pacific
Volume	130
Issue number	990
DOIs	https://doi.org/10.1088/1538-3873/aaca7e
State	Published - 2018

Keywords

Methods: observational
Surveys
Techniques: photometric

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/1538-3873/aaca7e

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Zhou, Z., Zhou, X., Zou, H., Zhang, T., Nie, J., Peng, X., Fan, X., Jiang, L., McGreer, I., Yang, J., Dey, A., Ma, J., Wang, J., Kong, X., Yuan, Q., Wu, H., & Schlegel, D. (2018). Photometric calibration for the Beijing–Arizona sky survey and mayall Z-band legacy survey. Publications of the Astronomical Society of the Pacific, 130(990), Article 085001. https://doi.org/10.1088/1538-3873/aaca7e

Zhou, Z, Zhou, X, Zou, H, Zhang, T, Nie, J, Peng, X, Fan, X, Jiang, L, McGreer, I, Yang, J, Dey, A, Ma, J, Wang, J, Kong, X, Yuan, Q, Wu, H & Schlegel, D 2018, 'Photometric calibration for the Beijing–Arizona sky survey and mayall Z-band legacy survey', Publications of the Astronomical Society of the Pacific, vol. 130, no. 990, 085001. https://doi.org/10.1088/1538-3873/aaca7e

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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.",

keywords = "Methods: observational, Surveys, Techniques: photometric",

author = "Zhimin Zhou and Xu Zhou and Hu Zou and Tianmeng Zhang and Jundan Nie and Xiyan Peng and Xiaohui Fan and Linhua Jiang and Ian McGreer and Jinyi Yang and Arjun Dey and Jun Ma and Jiali Wang and Xu Kong and Qirong Yuan and Hong Wu and David Schlegel",

year = "2018",

doi = "10.1088/1538-3873/aaca7e",

language = "English (US)",

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journal = "Publications of the Astronomical Society of the Pacific",

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T1 - Photometric calibration for the Beijing–Arizona sky survey and mayall Z-band legacy survey

AU - Zhou, Zhimin

AU - Zhou, Xu

AU - Zou, Hu

AU - Zhang, Tianmeng

AU - Nie, Jundan

AU - Peng, Xiyan

AU - Fan, Xiaohui

AU - Jiang, Linhua

AU - McGreer, Ian

AU - Yang, Jinyi

AU - Dey, Arjun

AU - Ma, Jun

AU - Wang, Jiali

AU - Kong, Xu

AU - Yuan, Qirong

AU - Wu, Hong

AU - Schlegel, David

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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.

KW - Methods: observational

KW - Surveys

KW - Techniques: photometric

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ER -

Photometric calibration for the Beijing–Arizona sky survey and mayall Z-band legacy survey

Abstract

Keywords

ASJC Scopus subject areas

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