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Galaxies 2019, 7(1), 7; https://doi.org/10.3390/galaxies7010007

Verification of Photometric Parallaxes with Gaia DR2 Data

1
Institute of Astronomy of RAS, 119017 Moscow, Russia
2
Institute of Physics, Czech Academy of Sciences, 182 21 Prague, Czech Republic
3
Special Astrophysical Observatory of RAS, 36916 Nizhnij Arkhyz, Russia
4
Laboratory “Fast Variable Processes in the Universe”, Kazan Federal University, 420008 Kazan, Russia
5
South African Astronomical Observatory, P.O. Box 9, Cape Town 7935, South Africa
6
Southern African Large Telescope Foundation, P.O. Box 9, Cape Town 7935, South Africa
7
Sternberg Astronomical Institute, 119234 Moscow, Russia
8
NAS RA V. Ambartsumian Byurakan Astrophysical Observatory, Byurakan 0213, Republic of Armenia
9
Indian Institute of Astrophysics, Bengaluru 560 034, India
10
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
11
Russian Technological University (MIREA), 119454 Moscow, Russia
*
Author to whom correspondence should be addressed.
Received: 7 November 2018 / Revised: 24 December 2018 / Accepted: 25 December 2018 / Published: 29 December 2018
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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° 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. View Full-Text
Keywords: parallax; photometry; interstellar extinction; surveys; Gaia parallax; photometry; interstellar extinction; surveys; Gaia
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Malkov, O.; Karpov, S.; Kovaleva, D.; Sichevsky, S.; Chulkov, D.; Dluzhnevskaya, O.; Kniazev, A.; Mickaelian, A.; Mironov, A.; Murthy, J.; Sytov, A.; Zhao, G.; Zhukov, A. Verification of Photometric Parallaxes with Gaia DR2 Data. Galaxies 2019, 7, 7.

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