Počet záznamů: 1  

Pulsations in the late-type B supergiant star HD 202850

  1. 1.
    0439941 - ASÚ 2019 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
    Tomić, S. - Kraus, Michaela - Oksala, Mary E.
    Pulsations in the late-type B supergiant star HD 202850.
    Precision Asteroseismology. Cambridge: Cambridge University Press, 2014, s. 503-504. IAU Symposium Proceedings Series, IAU S301. ISBN 978-1-107-04517-0. ISSN 1743-9213.
    [Symposium of the International Astronomical Union /301./. Wroclaw (PL), 19.08.2013-23.08.2013]
    Grant CEP: GA ČR(CZ) GAP209/11/1198
    Grant ostatní: UK(CZ) SVV-26089
    Institucionální podpora: RVO:67985815
    Klíčová slova: supergiants * oscillations * spectroscopic
    Obor OECD: Astronomy (including astrophysics,space science)

    Abstract 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.
    Trvalý link: http://hdl.handle.net/11104/0243108

     
     
Počet záznamů: 1  

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