First Byurakan Spectral Sky Survey. Stars of Late-Spectral Types. XIII. Zone +1° <= δ <= +13°
Abstract
The thirteenth list of faint late M and carbon type stars detected on the plates of the First Byurakan Spectral Sky Survey in zone +1° +13° covering about 3118 sq. degrees is presented. From 285 stars, 161 are newly detected objects: they are 17 carbon stars, 25 carbon star candidates, and 117 M-type stars. The spectral type of two objects is assumed to be between M8 - M9 or late N-subtypes. Among 161 objects, 85 (66 PSC + 19 FSC) are unclassified IRAS sources. Accurate positions, spectral classes, red magnitudes, and color indices are given using several astronomical databases. Finding charts from DSS are given for the most interesting objects.
- Publication:
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Astrophysics
- Pub Date:
- July 2002
- DOI:
- 10.1023/A:1020191500938
- Bibcode:
- 2002Ap.....45..322G
- Keywords:
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- stars - stars survey - stars classification - carbon stars