Composition, seasonal change and bathymetry of Ligeia Mare, Titan, derived from its 2.2-cm thermal emission

Alice Le Gall (1) , R.D. Lorenz (2) , M.J. Malaska (3) , M.A. Janssen (3) , T. Tokano (4) , A.G. Hayes (5) , M. Mastrogiuseppe (5) , Gaëlle Veyssière (1)

1 PLANETO - LATMOS
2 APL - Johns Hopkins University Applied Physics Laboratory [Laurel, MD]
3 JPL - Jet Propulsion Laboratory
4 IGN - Institut für Geophysik und Meteorologie [Köln]
5 Department of Astronomy [Ithaca]

Ligeia Mare is the second largest sea of Saturn's moon Titan. It is also the first extraterritorial sea for which a bathymetry profile was obtained. In this paper, we analyze all data acquired up to July 2013 in the passive mode of the RADAR (i.e., radiometry mode) on board the Cassini probe in order to constrain its composition, seasonal change and bathymetry.

Domaines: Planétologie et astrophysique de la terre [astro-ph.EP]; Astrophysique stellaire et solaire [astro-ph.SR]

Alice Le Gall, R.D. Lorenz, M.J. Malaska, M.A. Janssen, T. Tokano, et al.. Composition, seasonal change and bathymetry of Ligeia Mare, Titan, derived from its 2.2-cm thermal emission. European Planetary Science Congress 2015, Sep 2015, Nantes, France. pp.EPSC2015-504. ⟨insu-01211601⟩