| タイトル | Time-series photometric spot modeling. I - Parameter study and application to HD 17433 = VY Arietis |
| 著者（英） | Strassmeier, K. G.; Bopp, B. W. |
| 著者所属（英） | NASA Headquarters |
| 発行日 | 1992-06-01 |
| 言語 | eng |
| 内容記述 | New UBVRI photometry of the active chromosphere binary HD 17433 (VY) Ari from 1987 through 1991 is presented, and the long-term and short-term spot behavior is studied. A 0.2 mag variation of the mean brightness and a maximum wave amplitude of up to 0.4 mag in 1988 are found. The newly measured photometric period of 16.42 d suggests asynchronous rotation of the primary component by about 30 percent. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 93A43233 |
| 権利 | Copyright |
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