Derekas, A. and Thompson, I.B. and Bókon, A. and Bódi, A. and Pál, A. and Kiss, L.L. and Hajdu, Gergő and Skarka, M. (2021) On the extreme period change of the RR Lyrae variable BE Dor. In: TESS Science Conference II (TSC2).
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Abstract
BE Dor is a 15th magnitude first-overtone RR Lyrae variable star in the foreground of the Large Magellanic Cloud, located at about 8.7+/-3.3 kpc from the Sun. Previous investigations have revealed a cyclic period modulation with a period of 8 yr that is associated with a very stable light curve shape. To review and update our knowledge of the seemingly pure phase modulation, we collected all photometric data from the literature and extracted the light curves from all TESS Full Frame Image observations of the star. We extend the time base of earlier studies with another ~10 yrs, supplemented with new spectroscopic observations, and uncover further hints on the true physical nature of this intriguing pulsating star.
| Item Type: | Conference or Workshop Item (Poster) |
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| Subjects: | Q Science / természettudomány > QB Astronomy, Astrophysics / csillagászat, asztrofizika |
| Depositing User: | Dr. Aliz Derekas |
| Date Deposited: | 28 Sep 2021 18:14 |
| Last Modified: | 28 Sep 2021 18:14 |
| URI: | http://real.mtak.hu/id/eprint/131242 |
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