Reference : Towards the asteroseismology analysis of the Herbig Ae star HD 104237
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Towards the asteroseismology analysis of the Herbig Ae star HD 104237
Fumel, Aurélie [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
Böhm, Torsten [Université de Toulouse; UPS-OMP; IRAP;, Toulouse, France ; CNRS; IRAP, 14 avenue Edouard Belin, 31400, Toulouse, France > > > >]
Astronomische Nachrichten
John Wiley & Sons
Yes (verified by ORBi)
[en] non-radial pulsations ; mode identification ; fundamental parameters determination
[en] Understanding the internal structure of pulsating Herbig Ae stars by the aim of an asteroseismological study will help us to constrain the origin of the tremendous activity, wind and variability observed in this group of pre-main sequence stars. The time-series analysis of the equivalent photospheric profiles of HD 104237 has revealed non-radial pulsations of low-degree (ℓ = 0 or 1). We present a preliminary mode identification corresponding to the main detected frequency f1 = 33.289 c/d. In addition, as we need to constrain a stellar atmosphere model in order to simulate the pulsations of HD 104237, our aim is to determine accurately its fundamental parameters (Teff, log g, abundances); as this study is still in progress, we present our strategy.
Researchers ; Professionals
4 pages, 4 figures

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