Circumstellar CA II K Lines in G, K and M Giants and Supergiants
نویسندگان
چکیده
منابع مشابه
Radii and Effective Temperatures for G, K, and M Giants and Supergiants
Interferometrically determined angular diameters obtained at the Palomar Testbed Interferometer (PTI) for 69 giant and supergiant stars are presented. Spectral types of the 59 giant stars generally lie between G6 and M6, although a B7 giant is included ; the nine bright giants and supergiants have spectral types between F5 and M5. Comparison of the results to those from the IR Optical Telescope...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1970
ISSN: 0252-9211
DOI: 10.1017/s0252921100151322