Search Publications
Atmospheric photochemistry above possible martian hot spots
Atreya, S. K.; Ignatiev, N. I.; Formisano, V. +2 more
Considering the possibility of outgassing from some localized sources on Mars, we have developed a one-dimensional photochemical model that includes methane (CH4), sulfur dioxide (SO2) and hydrogen sulfide (H2S). Halogens were considered but were found to have no significant impact on the martian atmospheric chemis…
Numerical simulation of the visible and near infrared radiance of Mars: effects of atmospheric scattering
Erard, S.; Blecka, M. I.
This paper presents new simulations of the radiance of the surface and atmosphere of Mars. Our modeling is directly connected with future spectrometric measurements of two instruments on Mars Express (short-wavelength channel of PFS and OMEGA) and of the VIRTIS spectrometer on-board Rosetta which was planned for observation of Mars in August 2005.…
Radar detection of subsurface features on Mars
Orosei, R.; Kartashov, D. V.; Shchuko, O. B.
The structure of the pulse radar signal reflected from continuously changing layered Martian crust is investigated theoretically. As a simple model of stratigraphy, we considered one layer with electrodynamics' parameters increasing or decreasing exponentially upon a depth laying on monolith base and covered by homogeneous layer. This exponential …
PFS: an effective instrument for the study of martian environment
Grassi, D.; Formisano, V.; Maturilli, A. +2 more
We present here an evaluation of basic PFS sounding capabilities; results refer to the analysis of a single, calibrated spectrum. PFS is an infrared Fourier spectrometer on board of Mars Express mission. It covers the thermal infrared (250-1750 cm -1) with a resolution of 1.5 cm -1, as well as the near infrared (2000-8200 cm …