Hostname: page-component-6bf8c574d5-685pp Total loading time: 0 Render date: 2025-03-09T03:39:43.785Z Has data issue: false hasContentIssue false
  • English
  • Français

Spectroscopy and Photometry of the Southern R Stars

Published online by Cambridge University Press:  12 April 2016

T. Lloyd Evans
T. Lloyd Evans*
Affiliation:
South African Astronomical Observatory, Observatory 7935, South Africa

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

UBVRI photometry and 1-2Å resolution spectra have been used to classify 85 stars listed as type R by various authors. Some are N stars, including a few characterized by strong NaD, weak C2 and enhanced 13C which are distinct from the cooler counterparts of the strong-banded 13C rich stars which are the most numerous of the R stars. The latter are also distinguished from non- C rich stars by having redder V-I at given B-V in the bifurcated distribution in the B-V, V-I diagram.

Type
1. Properties and Kinematics of the Peculiar Red Giant Stars
Information
International Astronomical Union Colloquium , Volume 106: Evolution of Peculiar Red Giant Stars , 1989 , pp. 53
Copyright
Copyright © Cambridge University Press 1989