A new analysis of the ESO Very Large Telescope (VLT) observations of Titan at 2 μm

Details A new analysis of the ESO Very Large Telescope (VLT) observations of Titan at 2 μm A new analysis of the ESO Very Large Telescope (VLT) observations of Titan at 2 μm

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010p%26ss...58.1708c&link_type=abstract

Planetary and Space Science, Volume 58, Issue 13, p. 1708-1714.

Physics

Optics

1

Scientific paper

We have performed an analysis of ESO Very Large Telescope (VLT) observations of Titan at 2 μm. The data were acquired with the Nasmyth Adaptative Optics System Near-Infrared Imager and Spectrograph (NAOS/CONICA), on the 16th of January 2005, that is 2 days after the landing of the Huygens probe (Hirtzig et al., 2007). The data consist in 21 spectra taken along two diameters of Titan’s disk at wavelengths between 2.03 and 2.5 μm. This range covers a part of the 2 μm methane window and the adjacent band. The data received a preliminary analysis in a recent paper (Negrão et al., 2007), essentially focused on the surface albedo near Huygens landing site. In this work, we perform an in-depth analysis to retrieve information about several aspects: the latitude haze distribution in the stratosphere and in the low atmosphere, the latitudinal variation of the surface albedo and its spectral behaviour. Also, this analysis allowed us to make sensitivity tests on the influence of the scatterer profiles on the retrieved surface albedo and its spectral slope. The news analysis confirms that, as was the case with VIMS observations at the same epoch, the Northern (currently winter) Hemisphere contains more haze than the southern one (Summer Hemisphere). The sensitivity tests show that the scatterer profiles have just a little impact on the surface albedo and its spectral slope. The analysis seems to confirm the presence of H2O and CH4 ices.

Affiliated with

Also associated with

No associations

Rating

A new analysis of the ESO Very Large Telescope (VLT) observations of Titan at 2 μm does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A new analysis of the ESO Very Large Telescope (VLT) observations of Titan at 2 μm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new analysis of the ESO Very Large Telescope (VLT) observations of Titan at 2 μm will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1532977