The space motions of H-emission dwarf stars

Details The space motions of H-emission dwarf stars The space motions of H-emission dwarf stars

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100..251u&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, Feb. 1988, p. 251-254.

Astronomy and Astrophysics

Astronomy

9

Dwarf Stars, Emission Spectra, H Alpha Line, Stellar Motions, Stellar Spectra, Astronomical Catalogs, H Lines, Late Stars

Scientific paper

The motions of 36 dwarf K-M stars having considerably enhanced emission components of the Hα line are found to be kinematically indicative of a very young stellar population. The space motions are examined for 34 of the stars for which parallax, proper-motion, and radial-velocity data are available. The velocity ellipsoid which they define is typical for stars with ages less than about one billion years such as the main-sequence A-type stars. There does not appear to be any significant concentration of stars coinciding with the Hyades, Pleiades, or Ursa Major moving groups.

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