Tentative identification of formaldehyde in the Martian atmosphere
| dc.contributor.author | Korablev, O.I. | |
| dc.contributor.author | Ackerman, M. | |
| dc.contributor.author | Krasnopolsky, V.A. | |
| dc.contributor.author | Moroz, V.I. | |
| dc.contributor.author | Muller, C. | |
| dc.contributor.author | Rodin, A.V. | |
| dc.contributor.author | Atreya, S.K. | |
| dc.date | 1993 | |
| dc.date.accessioned | 2017-06-02T11:19:53Z | |
| dc.date.available | 2017-06-02T11:19:53Z | |
| dc.identifier.uri | https://orfeo.belnet.be/handle/internal/5660 | |
| dc.description | 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-1 with a resolving power of ≈ 1300. The spectra exhibit features at 2710 and 2730 cm-1 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. | |
| dc.language | eng | |
| dc.title | Tentative identification of formaldehyde in the Martian atmosphere | |
| dc.type | Article | |
| dc.subject.frascati | Physical sciences | |
| dc.audience | Scientific | |
| dc.source.title | Planetary and Space Science | |
| dc.source.volume | 41 | |
| dc.source.issue | 6 | |
| dc.source.page | 441-451 | |
| Orfeo.peerreviewed | Yes | |
| dc.identifier.doi | 10.1016/0032-0633(93)90004-L | |
| dc.identifier.scopus | 2-s2.0-0000146452 |
