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Analysis of the Systematic Differences between the Stellar Parallaxes of the TGAS and Hipparcos Catalogues Using Spherical Harmonics. / Tsvetkov, A. S.; Amosov, F. A.
в: Astronomy Letters, Том 44, № 11, 01.11.2018, стр. 720-726.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Analysis of the Systematic Differences between the Stellar Parallaxes of the TGAS and Hipparcos Catalogues Using Spherical Harmonics
AU - Tsvetkov, A. S.
AU - Amosov, F. A.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - The systematic differences between the trigonometric parallaxes of the Hipparcos and TGAS catalogues have been investigated using spherical harmonics. The most significant harmonics in the expansion have been determined. The distribution of the parallax difference dispersion in various regions of the celestial sphere has also been studied. The distribution of the rms deviation has the simplest form in the ecliptic coordinate system.
AB - The systematic differences between the trigonometric parallaxes of the Hipparcos and TGAS catalogues have been investigated using spherical harmonics. The most significant harmonics in the expansion have been determined. The distribution of the parallax difference dispersion in various regions of the celestial sphere has also been studied. The distribution of the rms deviation has the simplest form in the ecliptic coordinate system.
KW - astrometry
KW - Gaia
KW - Hipparcos
KW - parallaxes
KW - spherical harmonics
UR - http://www.scopus.com/inward/record.url?scp=85056798194&partnerID=8YFLogxK
U2 - 10.1134/S1063773718110063
DO - 10.1134/S1063773718110063
M3 - Article
AN - SCOPUS:85056798194
VL - 44
SP - 720
EP - 726
JO - Astronomy Letters
JF - Astronomy Letters
SN - 1063-7737
IS - 11
ER -
ID: 45810020