Bibcode
Gaulme, P.; Schmider, F. X.; Gay, J.; Jacob, C.; Alvarez, M.; Reyes-Ruiz, M.; Belmonte, J. A.; Fossat, E.; Jeanneaux, F.; Valtier, J.-C.
Referencia bibliográfica
Astronomy and Astrophysics, Volume 490, Issue 2, 2008, pp.859-871
Fecha de publicación:
11
2008
Revista
Número de citas
11
Número de citas referidas
6
Descripción
Aims: SYMPA is the first instrument dedicated to the observation of free
oscillations of Jupiter. Its principles and theoretical performance have
been presented in Paper I. This second paper describes the data
processing method, the real instrumental performance and presents the
first results of a Jovian observation run, lead in 2005 at Teide
Observatory. Methods: SYMPA is a Fourier transform spectrometer
which works at a fixed optical path difference. It produces Doppler
shift maps of the observed object. The velocity amplitude of Jupiter's
oscillations is expected to be below 60 cm s-1. Results: Despite light technical defects, the instrument was
demonstrated to work correctly, being limited only by photon noise. A
noise level of about 12 cm s-1 was reached on a 10-night
observation run, with 21% duty cycle, which is 5 time better than
similar previous observations. However, no signal from Jupiter is
clearly highlighted.
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Savita
Mathur