Verification of Photometric Parallaxes with Gaia DR2 Data

Galaxies

Jayant Murthy¹  Aleksandr Zhukov²  Olga Dluzhnevskaya²  Oleg Malkov²  Sergey Sichevsky²  Dmitry Chulkov²  Alexey Sytov²  Dana Kovaleva²  Sergey Karpov³  Gang Zhao⁴  Areg Mickaelian⁵  Alexey Kniazev⁶  Alexey Mironov⁷ 

[1] Indian Institute of Astrophysics, Bengaluru 560 034, India;Institute of Astronomy of RAS, 119017 Moscow, Russia;Institute of Physics, Czech Academy of Sciences, 182 21 Prague, Czech Republic;Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China;NAS RA V. Ambartsumian Byurakan Astrophysical Observatory, Byurakan 0213, Republic of Armenia;Special Astrophysical Observatory of RAS, 36916 Nizhnij Arkhyz, Russia;Sternberg Astronomical Institute, 119234 Moscow, Russia;

关键词: parallax;    photometry;    interstellar extinction;    surveys;    Gaia;   

DOI  :  10.3390/galaxies7010007

来源: DOAJ

【 摘 要 】

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 thangS D S S = 19. m6, including estimation of parallax and interstellar extinction value. However, the stellar luminosity class should be properly determined.

【 授权许可】

Unknown