e-Article
Extremely metal-deficient red giants. I. A new objective-prism, photometric, and radial-velocity survey
Document Type
Journal Article
Author
Source
Astrophys. J., Suppl. Ser.; (United States); 44:4
Subject
Language
English
Abstract
A list is given of all known field red giants and subgiants with M/sub ..nu../ < +2 and (Fe/H) < or = -1.5. Most of these 132 stars are new discoveries on objective-prism plates obtained by the writer, but additional objects came from the Michigan objective-prism survey and from other sources in the literature. Stroemgren ..mu nu..by photometry was obtained for nearly all of the stars, and estimates of CH strength were made on the objective-prism spectra.