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| Paper: |
Interrogation of duplicitous stars with an APT |
| Volume: |
34, Robotic Telescopes in the 1990s |
| Page: |
19 |
| Authors: |
Bopp, Bernard W. |
| Abstract: |
Preliminary results from intensive spectroscopic and APT monitoring of two interacting binary systems are presented. Both V644 Mon (Be + K:) and HD 37453 (F5 II + B) show complex, composite, and variable spectral. APT observations extending over three years show both stars to vary by 0.1-0.2 mag in V. The photometric variability of V644 Mon appears to be irregular, though there is some evidence for periodic behavior in the 50-60 day range. HD 37453 has an orbital period of 66.75 days; the best-fit photometric period is not quite half this value, indicating the star is an ellipsoidal variable. |
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