barium star

barium star

[′bar·ē·əm ‚stär]

(astronomy)

A peculiar, low-velocity, strong-lined red giant or subgiant star of spectral type G, K, or M, whose spectrum has anomalously strong lines of barium, sometimes with strong bands of methyldadyne (CH), molecular carbon (C₂), and cyanogen radical (CN).

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.