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    • Kinematics of M-type giant semi-regular variables from the Hipparcos catalogue 

      Aslan, Zeki; Yeşilyaprak, Cahit (CSIRO PUBLISHING, 150 OXFORD ST, PO BOX 1139, COLLINGWOOD, VICTORIA 3066, AUSTRALIA, 2008)
      The kinematics of M-type (O-rich) giant semi- regular (SR) variable stars were examined. They were grouped with respect to their relative parallax errors (epsilon(pi)/pi) in order to study the stars having relatively better ...