Galaxies (Dec 2018)

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

DOI
https://doi.org/10.3390/galaxies7010007
Journal volume & issue
Vol. 7, no. 1
p. 7

Abstract

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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° 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 S D S S = 19 . m 6 , including estimation of parallax and interstellar extinction value. However, the stellar luminosity class should be properly determined.

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