Physics
Scientific paper
Jun 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993p%26ss...41..441k&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 41, no. 6, p. 441-451
Physics
22
Formaldehyde, Infrared Spectrometers, Mars Atmosphere, Occultation, Absorption Spectra, Chemical Reactions, Photolysis, Soviet Spacecraft, Spectrum Analysis
Scientific paper
Solar occultation observations of the Martian atmosphere near the limb of the planet were performed during the Phobos mission by means of the Auguste infrared spectrometer in the ranges 2707-2740 and 5392-5272/cm with a resolving power of approximately = 1300. The spectra exhibit features at 2710 and 2730/cm which have not been identified previously. After applying a set of corrections to the data and examining the spectra of various molecules, we are led to conclude that the best candidate for the above-mentioned features is formaldehyde (CH2O). It was observed in eight of the nine successful occultation sequences, mainly between 8 and 20 km with an average mixing ratio of 0.5 (+0.8, - 0.3) ppm (there are no good data below 8 km). The observations are performed in equatorial spring conditions. The altitude distribution of formaldehyde reveals correlation with the permanent haze opacity.
Ackerman Margareta
Atreya Sushil K.
Korablev Oleg I.
Krasnopolsky Vladimir A.
Moroz Vasiliy Ivanovich
No associations
LandOfFree
Tentative identification of formaldehyde in the Martian 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 Tentative identification of formaldehyde in the Martian atmosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tentative identification of formaldehyde in the Martian atmosphere will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1335706