Ethane aerosol phase evolution in Titan's atmosphere

Other

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

6

Scientific paper

Strong experimental evidence is presented that the northern polar cloud observed in Titan's atmosphere by the Cassini orbiter (VIMS) was indeed composed of ethane aerosol as proposed by Griffith et al. [2006. Science 313, 1620 1622]. We report on the condensation and phase behavior of ethane aerosol under atmospheric conditions of Titan (145 hPa, 40 km altitude, 70 90 K, 10 30 ppm ethane in nitrogen). The results were obtained in an in-situ collisional cooling experiment combined with Fourier-transform infrared (FTIR) spectroscopy. Apart from the liquid phase, three crystalline phases (solid I, solid II, metastable) and the transitions into each other have been observed in the ethane aerosol. The phases were found to have a significant effect on the particles' IR spectra, their growth dynamics and the final size of the aerosols which varies between 0.5 and 4 μm (compared to 1 3 μm observed on Titan). This has strong implications on the ethane vapor pressure, precipitation and optical aerosol detection.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Ethane aerosol phase evolution in Titan's atmosphere 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 Ethane aerosol phase evolution in Titan's atmosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ethane aerosol phase evolution in Titan's atmosphere will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-918772

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.