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Determination of the Parameters of a Nonlinear Kinematic Galactic Rotation Model Based on the Proper Motions and Radial Velocities of Stars from the Gaia DR3 Catalogue.
- Source :
-
Astronomy Letters . Jun2023, Vol. 49 Issue 6, p331-344. 14p. - Publication Year :
- 2023
-
Abstract
- We have solved the Ogorodnikov–Milne stellar-kinematics equations in the Galactic rectangular coordinate system based on the total velocities for a special sample of stars with radial velocities from the final Gaia Data Release 3 catalogue. We have found the region of applicability of the linear model and the regions that it describes poorly. We have constructed a second-order model that takes into account the peculiarities of stellar kinematics more accurately and showed its applicability for stars at distances up to 5 kpc. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10637737
- Volume :
- 49
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Astronomy Letters
- Publication Type :
- Academic Journal
- Accession number :
- 173890908
- Full Text :
- https://doi.org/10.1134/S1063773723060051