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A search for possible stellar members of the α-spiral arm

Abstract

The proper motions of groups of stars, selected according to magnitude and colour, near (l, b.)=(140°, 0°), were analysed in an attempt to identify possible members of the α-spiral arm defined by Verschuur fromHi observations. Other than late type giants the only objects whose distance corresponded to that of this arm were a small group of reddened early type stars.

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Dodd, R.J. A search for possible stellar members of the α-spiral arm. Astrophys Space Sci 26, 513–519 (1974). https://doi.org/10.1007/BF00645628

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Keywords

  • Colour
  • Small Group
  • Late Type
  • Proper Motion
  • Early Type