Bibcode
Gaulme, P.; Schmider, F. X.; Gay, J.; Jacob, C.; Jeanneaux, F.; Alvarez, M.; Reyes, M.; Valtier, J. C.; Fossat, E.; Pallé, P. L.; Belmonte, J. C.; Gelly, B.
Referencia bibliográfica
SF2A-2006: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: D. Barret, F. Casoli, G. Lagache, A. Lecavelier, L. Pagani, p.403
Advertised on:
6
2006
Número de citas
0
Número de citas referidas
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Descripción
Jupiter's internal structure is poorly known (Guillot et al. 2004).
Seismology is a powerful tool to investigate the internal structure of
planets and stars, by analyzing how acoustic waves propagate. Mosser
(1997) and Gudkova & Zarkhov (1999) showed that the detection and
the identification of non-radial modes up to degree ℓ=25 can
constrain strongly the internal structure. SYMPA is a ground-based
network project dedicated to the Jovian oscillations (Schmider et al.
2002). The instrument is composed of a Mach-Zehnder interferometer
producing four interferograms of the planetary spectrum. The combination
of the four images in phase quadrature allows the reconstruction of the
incident light phase, which is related to the Doppler shift generated by
the oscillations. Two SYMPA instruments were built at the Nice
university and were used simultaneously during two observation
campaigns, in 2004 and 2005, at the San Pedro Martir observatory
(Mexico) and the Teide observatory (Las Canarias). We will present for
the first time the data processing and the preliminary results of the
experiment.