Article (Scientific journals)
Close-up of primary and secondary asteroseismic CoRoT targets and the ground-based follow-up observations
Uytterhoeven, K.; Poretti, E.; Rainer, M. et al.
2008In Journal of Physics. Conference Series, 118, p. 2077
Peer Reviewed verified by ORBi
 

Files


Full Text
jpconf8_118_012077.pdf
Publisher postprint (740.02 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Abstract :
[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.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
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 ;  Université de Liège - ULiège > 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.
More authors (5 more) Less
Language :
English
Title :
Close-up of primary and secondary asteroseismic CoRoT targets and the ground-based follow-up observations
Publication date :
01 October 2008
Journal title :
Journal of Physics. Conference Series
ISSN :
1742-6588
eISSN :
1742-6596
Publisher :
Institute of Physics, United Kingdom
Volume :
118
Pages :
2077
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
http://de.arxiv.org/abs/0710.4068
Available on ORBi :
since 19 February 2010

Statistics


Number of views
62 (0 by ULiège)
Number of downloads
0 (0 by ULiège)

Scopus citations®
 
9
Scopus citations®
without self-citations
1
OpenCitations
 
6

Bibliography


Similar publications



Contact ORBi