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- W2093025194 abstract "Recent photometry of Phi Persei has been combined with unpublished photometry from the last ten years. The results show three kinds of variation: a long-term change in average brightness of approximately 0.05 V magnitude over six years, night-to-night variability of up to 0.05 magnitude, and abrupt minima of about 0.1 magnitude in amplitude. An association has been found between the phases of minimum light, increased strength of the sharp hydrogen absorption cores, and the ascending branches of the radial-velocity curve of the sharp hydrogen absorption cores. The light minima appear to be caused by periodic variations in the opacity of the circumstellar material, not eclipses or instrinsic stellar variation. Disk and gas-stream models of the circumstellar material are considered in relation to the photometry." @default.
- W2093025194 created "2016-06-24" @default.
- W2093025194 creator A5061084408 @default.
- W2093025194 date "1992-01-01" @default.
- W2093025194 modified "2023-09-25" @default.
- W2093025194 title "BV photometry of the binary Be star Phi Persei" @default.
- W2093025194 doi "https://doi.org/10.1086/132955" @default.
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