Kinematics and ellipsoidal motion of the mid to late M ‐type stars

  title={Kinematics and ellipsoidal motion of the mid to late
 ‐type stars},
  author={Waleed H. Elsanhoury and Mohamed I. Nouh and Richard Lacy Branham and Amnah S. Al-Johani},
  journal={Astronomische Nachrichten},
Truly, kinematics in the Solar neighborhood has provided important information both for the structure and for the evolution of the Galaxy since the early 20th century. The relationship between Oort constants and the ratio of the velocity dispersion are important quantities in stellar kinematics. In the present paper, we calculated the kinematical parameters and the Oort constants of various samples of late to intermediate M-type stars. We calculated the velocity dispersion (σ1, σ2, σ3) in units… 

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