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1999•Publications of the Astronomical Society of the PacificOpen access

A Calibration Method for Wide‐Field Multicolor Photometric Systems

Xu Zhou, Jiansheng Chen, Wen Xu, Mei Zhang, Zhaoji Jiang, Zhongyuan Zheng, Jin Zhu

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Abstract

The purpose of this paper is to present a method to self‐calibrate the spectral energy distribution (SED) of objects in a survey based on the fitting of a SED library to observed multicolor photometry. We adopt, for illustrative purposes, the Vilnius and Gunn & Stryker SED libraries. The self‐calibration technique can improve the quality of observations which are not taken under perfectly photometric conditions. The more passbands used for the photometry, the better the results. This technique has been applied to the BATC 15 passband CCD survey.

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What this paper is about

The purpose of this paper is to present a method to self‐calibrate the spectral energy distribution (SED) of objects in a survey based on the fitting of a SED library to observed multicolor photometry. We adopt, for illustrative purposes, the Vilnius and Gunn & Stryker SED libraries. The self‐calibration technique can improve the quality of observations which are not taken under perfectly photometric conditions. The more passbands used for the photometry, the better the results. This technique has been applied to the BATC 15 passband CCD survey.

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Available abstract

The purpose of this paper is to present a method to self‐calibrate the spectral energy distribution (SED) of objects in a survey based on the fitting of a SED library to observed multicolor photometry. We adopt, for illustrative purposes, the Vilnius and Gunn & Stryker SED libraries. The self‐calibration technique can improve the quality of observations which are not taken under perfectly photometric conditions. The more passbands used for the photometry, the better the results. This technique has been applied to the BATC 15 passband CCD survey.

Key concepts: Photometry (optics), Spectral energy distribution, Passband, Physics, Calibration, Remote sensing, Astronomy, Astrophysics

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