Taxonomy of barium stars

Details Taxonomy of barium stars Taxonomy of barium stars

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aj....101.2229l&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 101, June 1991, p. 2229-2254.

Astronomy and Astrophysics

Astronomy

41

Barium, Late Stars, Metallic Stars, Stellar Spectrophotometry, Taxonomy, Dwarf Stars, Radial Velocity, Stellar Luminosity, Stellar Magnitude

Scientific paper

Spectral classification, barium intensity, radial velocity, luminosity, and kinematical properties are determined for 389 barium stars by analyzing image-tube spectra and photometric observation data. Disk kinematics for the stars are based on whether they are Ba weak or Ba strong. Weak barium stars in general have smaller velocity dispersions, brighter apparent magnitude, and lower luminosity than strong barium stars. These characteristics are confirmed by solving for mean spectroscopic distances, z-scale height distances, and reduced proper motions.

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