On the rapid variability of the global magnetic field in γ Equ
Abstract
We report the results of the search for rapid periodic magnetic variations in γ Equ. Observations were collected in August 1989 with the 6-m telescope of Special Astrophysical Observatory (Russia). We analysed a 3-hour series of 1720 rapid Be measurements of γ Equ obtained with an average time resolution of 6.6 s. A power spectrum analysis shows a period of P = 3.596 min. That period differs from the well-known photometric period of rapid variability Pphot = 12.44 min. We do not confirm variations of the Be field of γ Equ with the Pphot.
- Publication:
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The A-Star Puzzle
- Pub Date:
- December 2004
- DOI:
- Bibcode:
- 2004IAUS..224..804B
- Keywords:
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- Stars: magnetic fields; stars: individual (γ Equ); stars: variables: other.