DOI

The paper is devoted to determining the parameters of the three-dimensional Ogorodnikov—Milne kinematic model based on the Gaia DR2 star catalogue (the subset of seven million stars containing radial velocities). The behavior of the parameters as a function of the distance to stars is studied. The parameters derived from the stellar proper motions and radial velocities agree well with one another. It is noted that the angular velocity of rotation retains its stability up to distances of ~3 kpc, while the parameter responsible for the translational motion along the Y axis abruptly begins to change from distances starting from 1 kpc.

Язык оригиналаанглийский
Страницы (с-по)462-473
Число страниц12
ЖурналAstronomy Letters
Том45
Номер выпуска7
DOI
СостояниеОпубликовано - 2019

    Предметные области Scopus

  • Астрономия и астрофизика
  • Космические науки и планетоведение

ID: 46327892