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Observations of the j = 10 manifold of the pure rotational band of phosphine on saturn
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | McKibbin, D. D. Erickson, E. F. Haas, M. R. Goorvitch, D. Rank, D. M. |
| Copyright Year | 1986 |
| Description | Saturn was observed in the vicinity of the J = 10 manifold of the pure rotational band of phosphine on 1984 July 10 and 12 from NASA's Kuiper Airborne Observatory with the facility far-infrared cooled grating spectrometer. On each night observations of the full disk plus rings were made at 4 to 6 discrete wavelengths which selectively sampled the manifold and the adjacent continuum. The previously reported detection of this manifold is confirmed. After subtraction of the flux due to the rings, the data are compared with disk-averaged models of Saturn. It is found that PH3 must be strongly depleted above the thermal inversion (approx. 70 mbar). The best fitting models consistent with other observational constaints indicate that PH3 is significantly depleted at even deeper atmospheric levels ( or = 500 mbar), implying an eddy diffusion coefficient for Saturn of 10 to the 4 cm sq/sec. |
| File Size | 866698 |
| Page Count | 30 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19860008807 |
| Archival Resource Key | ark:/13960/t4rj9b98p |
| Language | English |
| Publisher Date | 1986-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Saturn Planet Infrared Spectroscopy Airborne Equipment Atmospheric Composition Troposphere Gratings Spectra Phosphines Resolution Saturn Atmosphere Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
