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arXiv · 1812.11817

Verification of Photometric Parallaxes with Gaia DR2 Data

Oleg Malkov·Sergey Karpov·Dana Kovaleva·Sergey Sichevsky·Dmitry Chulkov·Olga Dluzhnevskaya·Alexey Kniazev·Areg Mickaelian·Alexey Mironov·Jayant Murthy·Alexey Sytov·Gang Zhao·Aleksandr Zhukov
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Abstract

Results of comparison of Gaia DR2 parallaxes with data derived from a combined analysis of 2MASS (Two Micron All-Sky Survey), SDSS (Sloan Digital Sky Survey), GALEX (Galaxy Evolution Explorer), and UKIDSS (UKIRT Infrared Deep Sky Survey) surveys in four selected high-latitude $|b|>48^{\circ}$ sky areas are presented. It is shown that multicolor photometric data from large modern surveys can be used for parameterization of stars closer than 4400 pc and brighter than $g_{SDSS} = 19.^m6$, including estimation of parallax and interstellar extinction value. However, the stellar luminosity class should be properly determined.

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Oleg Malkov, Sergey Karpov, Dana Kovaleva, Sergey Sichevsky, Dmitry Chulkov, Olga Dluzhnevskaya, Alexey Kniazev, Areg Mickaelian, Alexey Mironov, Jayant Murthy, Alexey Sytov, Gang Zhao, Aleksandr Zhukov. 2018-12-31. Verification of Photometric Parallaxes with Gaia DR2 Data. https://arxiv.org/abs/1812.11817

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