Other
Scientific paper
May 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apjs...49..175p&link_type=abstract
Astrophysical Journal Supplement Series, vol. 49, May 1982, p. 175-181. Research supported by McDonald Observatory.
Other
19
Binary Stars, Giant Stars, Hot Stars, Late Stars, Stellar Luminosity, Ubv Spectra, A Stars, B Stars, F Stars, G Stars, Stellar Spectrophotometry, Supergiant Stars, Ultraviolet Spectra
Scientific paper
Johnson system BVRI measurements are presented for 117 stars, most of them with no previous R and I photometry and many with no previous B and V. The prime objects for measurement are unresolved or nearly unresolved binaries containing a late-type giant or supergiant and an early-type companion. Other objects on the program include suspected binaries and other F-G giants and supergiants lacking at least R and I magnitudes. The variable F and G supergiants 1 Mon, 89 Her, HR 7308, HR 8157, HR 8752, and rho-Cas and the eclipsing systems W Ser and ST Aqr were observed; HR 8752 showed significant dimming and cooling over 125 days. Several of Halliwell's (1979) candidates for nearby stars were measured.
Montemayor Thomas J.
Parsons Sidney B.
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