Jovian Chromophore Characteristics from Multispectral HST Images

Details Jovian Chromophore Characteristics from Multispectral HST Images Jovian Chromophore Characteristics from Multispectral HST Images

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.3903s&link_type=abstract

American Astronomical Society, DPS meeting #41, #39.03

Astronomy and Astrophysics

Astronomy

Scientific paper

Characterizing the chromophores responsible for coloring the Jovian atmosphere remains a challenging problem. Knowledge of their spectral shapes and 3-dimensional distributions can provide important clues as to their chemical identities. In this study, HST WFPC2 data were fit with radiative transfer models to find spectral shapes and vertical distributions of Jovian chromophores. The observations were made on 15 May, 28 June, and 8 July 2008, covering a passage of Oval BA and the Great Red Spot (GRS). Nine filters sampled the continuum (255, 343, 375, 390, 410, 437, 469, 502, and 673 nm), making this data set ideal for high spatial resolution color studies. One methane absorption filter (889 nm) provided first-order cloud height information. The radiative transfer code used was originally developed to analyze Galileo SSI data (Simon-Miller et al. 2001, Icarus 154, 459). Each model aerosol layer in the code was parameterized by a base pressure, an optical depth, a particle radius, and single-scattering albedos at the observed continuum wavelengths. Initial values for cloud structure parameters were taken from recent publications. The best-fit model parameters at a given planet location were found for each initial cloud structure, resulting in a spectrum of the chromophore component present in each aerosol layer. Results are presented for the GRS, Oval BA, a small red anticyclone that passed through the perimeter of the GRS, the Equatorial Zone, and the South Equatorial Belt. This work was supported by NASA's Planetary Atmospheres Program through grant number NNX08AF53A. This work is based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. These observations are associated with program #GO/DD11498.

Affiliated with

Also associated with

No associations

Rating

Jovian Chromophore Characteristics from Multispectral HST Images 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 Jovian Chromophore Characteristics from Multispectral HST Images, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jovian Chromophore Characteristics from Multispectral HST Images will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1333232