UBV photometry of the Eta Carinae complex in 1980 and 1991

Details UBV photometry of the Eta Carinae complex in 1980 and 1991 UBV photometry of the Eta Carinae complex in 1980 and 1991

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993azh....70..292a&link_type=abstract

Astronomicheskij Zhurnal (ISSN 0004-6299), vol. 70, no. 2, p. 292-306.

Astronomy and Astrophysics

Astronomy

Early Stars, Light Curve, Massive Stars, Stellar Evolution, Stellar Spectrophotometry, Ubv Spectra, Electrophotometry, Hot Stars, Stellar Spectra

Scientific paper

UBV photometric observations of the seven hot stars in the Eta Car complex are reported. The variability of the objects on time scales from 1 d to 11 yr is investigated. Eta Car itself has exhibited increased brightness by 0.33, 0.28, and 0.25 mag in U, B, V, respectively, over the 11-yr period. No periodicity in Eta Car was found. CPD-59 deg 2603 shows two levels of brightness, which differ by about 0.3 mag in all filters. The remaining stars, including HD 93162 (WN7 + abs), do not exhibit light variability above 0.02 mag.

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