Abstract
The star HD 49933 has been observed by the mission CoRoT two times (for 60 and 137 days). Its spectrum shows a wealth of oscillation modes but was found difficult to analyse. In the following, we summarize why it was so, and then present a modeling of the star using seismic constraints and show the effect of the microscopic diffusion and of the overshoot in the modeling. We conclude that some convective overshoot from the core is needed while it is difficult to give a definitive conclusion concerning the effect of the microscopic diffusion on the modeling of HD 49933 (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
| Original language | English (US) |
|---|---|
| Pages (from-to) | 956-960 |
| Number of pages | 5 |
| Journal | Astronomische Nachrichten |
| Volume | 331 |
| Issue number | 9-10 |
| DOIs | |
| State | Published - Dec 1 2010 |
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Keywords
- Methods: data analysis
- Stars: individual (HD 49933)
- Stars: interiors
- Stars: oscillations
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science
Cite this
Spectrum analysis and seismic interpretation of a solar-like pulsator (HD 49933) observed by CoRoT. / Benomar, Othman; Baudin, F.; Marques, J. P.; Goupil, M. J.; Lebreton, Y.; Deheuvels, S.
In: Astronomische Nachrichten, Vol. 331, No. 9-10, 01.12.2010, p. 956-960.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Spectrum analysis and seismic interpretation of a solar-like pulsator (HD 49933) observed by CoRoT
AU - Benomar, Othman
AU - Baudin, F.
AU - Marques, J. P.
AU - Goupil, M. J.
AU - Lebreton, Y.
AU - Deheuvels, S.
PY - 2010/12/1
Y1 - 2010/12/1
N2 - The star HD 49933 has been observed by the mission CoRoT two times (for 60 and 137 days). Its spectrum shows a wealth of oscillation modes but was found difficult to analyse. In the following, we summarize why it was so, and then present a modeling of the star using seismic constraints and show the effect of the microscopic diffusion and of the overshoot in the modeling. We conclude that some convective overshoot from the core is needed while it is difficult to give a definitive conclusion concerning the effect of the microscopic diffusion on the modeling of HD 49933 (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
AB - The star HD 49933 has been observed by the mission CoRoT two times (for 60 and 137 days). Its spectrum shows a wealth of oscillation modes but was found difficult to analyse. In the following, we summarize why it was so, and then present a modeling of the star using seismic constraints and show the effect of the microscopic diffusion and of the overshoot in the modeling. We conclude that some convective overshoot from the core is needed while it is difficult to give a definitive conclusion concerning the effect of the microscopic diffusion on the modeling of HD 49933 (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
KW - Methods: data analysis
KW - Stars: individual (HD 49933)
KW - Stars: interiors
KW - Stars: oscillations
UR - http://www.scopus.com/inward/record.url?scp=78649429000&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78649429000&partnerID=8YFLogxK
U2 - 10.1002/asna.201011435
DO - 10.1002/asna.201011435
M3 - Article
VL - 331
SP - 956
EP - 960
JO - Astronomische Nachrichten
JF - Astronomische Nachrichten
SN - 0004-6337
IS - 9-10
ER -