Photometric recalibration of VPHAS+ u-band photometry with the stellar colour regression method and Gaia DR3
Bing-Qiu Chen,
Hai-Bo Yuan,
Bo-Wen Huang
Abstract:The u band magnitude is vital for determining stellar parameters and investigating specific astronomical objects. However, flux calibration in the u band for stars in the Galactic disk presents significant challenges. In this study, we introduce a comprehensive re-calibration of u-band photometric magnitudes of the VPHAS+ Data Release 4 (DR4), employing the Stellar Colour Regression (SCR) technique. By leveraging the expansive set of XP spectra and GBP photometry from Gaia Data Release 3 (DR3), as well as the … Show more
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