First observation of the Venus UV dayglow at limb from SPICAV/VEX

Understanding the variability of nightside temperatures, NO UV and O2 IR nightglow emissions in the Venus upper atmosphere

[1] Venus Express (VEX) has been monitoring key nightglow emissions and thermal features (O2 IR nightglow, NO UV nightglow, and nightside temperatures) which contribute to a comprehensive understanding of the global dynamics and circulation patterns above ∼90 km. The nightglow emissions serve as effective tracers of Venus’ middle and upper atmosphere global wind system due to their variable pea...

Reanalysis of the SPICAV-UV nadir spectra on the day side of Venus: SO2 , O3 and other UV absorbers

Dayside temperatures in the Venus upper atmosphere from Venus Express/VIRTIS nadir measurements at 4.3 μm⋆

In this work, we analysed nadir observations of atmospheric infrared emissions carried out by VIRTIS, a high-resolution spectrometer on board the European spacecraft Venus Express. We focused on the ro-vibrational band of CO2 at 4.3 μm on the dayside, whose fluorescence originates in the Venus upper mesosphere and above. This is the first time that a systematic sounding of these non-local therm...

Coordinated Hubble Space Telescope and Venus Express Observations of Venusâ€TM upper cloud deck

Hubble Space Telescope Imaging Spectrograph (HST/STIS) UV observations of Venus’ upper cloud tops were obtained between 20N and 40S latitude on December 28, 2010; January 22, 2011 and January 27, 2011 in coordination with the Venus Express (VEx) mission. The high spectral (0.27 nm) and spatial (40–60 km/pixel) resolution HST/STIS data provide the first direct and simultaneous record of the lati...

Analysis, Interpretation, and Modeling of Mars Dayglow Spectra

Introduction: The Mariner 6 and 7 (1969), Mariner 9 (1971), and Viking 1 and 2 (1975) missions provided the first quantitative details about the structure and energetics of the Mars atmosphere [1-8]. These limited data sets supplied the observational foundation for the current semiempirical reference atmospheric models [2, 10-13]. Not until more than 20 years later did new generations of lander...