EPJ Web of Conferences
Volume 101, 2015The Space Photometry Revolution – CoRoT Symposium 3, Kepler KASC-7 Joint Meeting
|Number of page(s)||2|
|Section||Session 6 – Posters|
|Published online||23 September 2015|
The NIR transmission spectrum of Jupiter from the observation of a Ganymede’s eclipse
1 Instituto de Astrofísica de Canarias, C/Vía Láctea s/n, E-38200 La Laguna, Spain
2 Departamento de Astrofísica, Universidad de La Laguna, Av., Astrofísico Francisco Sánchez, s/n, E-38206 La Laguna, Spain
3 Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomía s/n, E-18080 Granada, Spain
4 Departamento de Física Aplicada I, E.T.S. Ingeniería, Universidad del País Vasco, 9 Alameda Urquijo s/n, 48013 Bilbao, Spain.
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Published online: 23 September 2015
Here, we report the NIR transmission spectrum of Jupiter, with high signal-to-noise ratio, as if it were a transiting planet. Our technique was to observe Ganymede, when crossing Jupiter’s shadow. During the eclipse, the spectral features of the Jovian atmosphere are imprinted in the sunlight that, after passing through Jupiter’s planetary limb, is reflected from Ganymede towards the Earth. The ratio spectrum of Ganymede before and during the eclipse removes the spectral features of the Sun, the local telluric atmosphere on top of the telescopes, and the spectral albedo of Ganymede. Ganymede is a practically atmosphere-less body and do not suffer any significant weather variability.
© Owned by the authors, published by EDP Sciences, 2015
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