Article (Scientific journals)
Asteroseismology and mode driving of the Herbig Ae star HD 104237
Dupret, Marc-Antoine; Théado, S.; Böhm, T. et al.
2007In Communications in Asteroseismology, 150, p. 59
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Abstract :
[en] Eight pulsation frequencies were detected in the Herbig Ae star HD 104237 during two observational campaigns in 1999 -- 2000 (Böhm et al. 2004). Moreover, Böhm et al. (in preparation) detected recently in their data two independent signatures of a signal at 95 hr that corresponds probably to rotational modulation. We present here a seismic study of this Pre-Main Sequence star based on these observations. Different possible interpretations of the pulsation spectrum are considered. The driving of the pulsation modes is not explained by standard models, the observed frequencies being too high for delta Scuti-type pulsations. We consider the effect of He accumulation in its partial ionization zones as a possible explanation for this driving.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Dupret, Marc-Antoine ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique
Théado, S.
Böhm, T.
Goupil, Marie-José
Catala, C.
Grigahcène, A.
Language :
English
Title :
Asteroseismology and mode driving of the Herbig Ae star HD 104237
Publication date :
01 June 2007
Journal title :
Communications in Asteroseismology
ISSN :
1021-2043
eISSN :
2224-8374
Publisher :
Verlag der Österreichischen Akademie der Wissenschaften, Wien, Austria
Volume :
150
Pages :
59
Peer reviewed :
Peer reviewed
Available on ORBi :
since 10 November 2010

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