Reference : Close-up of primary and secondary asteroseismic CoRoT targets and the ground-based follo...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/31766
Close-up of primary and secondary asteroseismic CoRoT targets and the ground-based follow-up observations
English
Uytterhoeven, K. [INAF-Brera Astronomical Observatory, Via E. Bianchi 46, 23807 Merate, Italy]
Poretti, E. [INAF-Brera Astronomical Observatory, Via E. Bianchi 46, 23807 Merate, Italy]
Rainer, M. [INAF-Brera Astronomical Observatory, Via E. Bianchi 46, 23807 Merate, Italy]
Mantegazza, L. [INAF-Brera Astronomical Observatory, Via E. Bianchi 46, 23807 Merate, Italy]
Zima, W. [Institute of Astronomy, KULeuven, Celestijnenlaan 200D, 3001 Leuven, Belgium]
Aerts, C. [Institute of Astronomy, KULeuven, Celestijnenlaan 200D, 3001 Leuven, Belgium ; Department of Astrophysics, University of Nijmegen, IMAPP, PO Box 9010, 6500 GL Nijmegen, the Netherlands]
Morel, Thierry [Katholieke Universiteit Leuven, Departement Natuurkunde en Sterrenkunde, Instituut voor Sterrenkunde, Celestijnenlaan 200D, B-3001 Leuven > > > >]
Miglio, Andrea mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie >]
Lefever, K. [Institute of Astronomy, KULeuven, Celestijnenlaan 200D, 3001 Leuven, Belgium]
Amado, P. J. [Instituto de Astrofísica de Andalucía (CSIC), Apartado 3004, 18080 Granada, Spain]
Marti­n-Ruiz, S. [ > > ]
Mathias, P. [Observatoire de la Cote d'Azur, GEMINI, CNRS, Université Nice Sophia-Antipolis, BP 4229, 06304 Nice Cedex 4, France]
Valtier, J. C. [Observatoire de la Cote d'Azur, GEMINI, CNRS, Université Nice Sophia-Antipolis, BP 4229, 06304 Nice Cedex 4, France]
Paparo, M. [ > > ]
Benko, J. M. [ > > ]
1-Oct-2008
Journal of Physics Conference Series
118
2077
Yes
International
[en] To optimise the science results of the asteroseismic part of the CoRoT satellite mission a complementary simultaneous ground-based observational campaign is organised for selected CoRoT targets. The observations include both high-resolution spectroscopic and multicolour photometric data. We present the preliminary results of the analysis of the ground-based observations of three targets. A line-profile analysis of 216 high-resolution FEROS spectra of the δ Sct star HD 50844 reveals more than ten pulsation frequencies in the frequency range 5-18 d[SUP]-1[/SUP], including possibly one radial fundamental mode (6.92 d[SUP]-1[/SUP]). Based on more than 600 multi-colour photometric datapoints of the β Cep star HD 180642, spanning about three years and obtained with different telescopes and different instruments, we confirm the presence of a dominant radial mode ν[SUB]1[/SUB] = 5.48695 d[SUP]-1[/SUP], and detect also its first two harmonics. We find evidence for a second mode ν[SUB]2[/SUB] = 0.3017 d[SUP]-1[/SUP], possibly a g-mode, and indications for two more frequencies in the 7-8 d[SUP]-1[/SUP] domain. From Stromgren photometry we find evidence for the hybrid 5 Sct/γ Dor character of the F0 star HD 44195, as frequencies near 3 d[SUP]-1[/SUP] and 21 d[SUP]-1[/SUP] are detected simultaneously in the different filters.
http://hdl.handle.net/2268/31766
10.1088/1742-6596/118/1/012077
http://adsabs.harvard.edu/abs/2008JPhCS.118a2077U
http://de.arxiv.org/abs/0710.4068

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