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Paper detail

Pulsations in the Late-type B Supergiant Star HD 202850

HD 202850 is a late B-type supergiant. It is known that photospheric lines of such stars vary. Due to macroturbulence the lines are much wider than expected. Macroturbulence has been linked to stellar pulsations. It has been reported that there are several B supergiants that undergo pulsations. In our previous work, we detected a pulsational period of 1.59 hours in this object from data taken with the Ondrejov 2-m telescope. We continued to investigate this object and we took several time series with the DAO 1.2-m telescope. Our new data suggest that there may be some additional pulsational periods in this star. We present our new results in this poster.

preprint2014arXivOpen access
Sanja TomicMichaela KrausMary Oksala
astro-ph.SR
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Sanja TomicMichaela KrausMary Oksala

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