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Large time scale variation in hydrogen emission from jupiter and saturn
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Shemansky, D. E. Hall, D. T. Holberg, J. B. |
| Copyright Year | 1988 |
| Description | The IUE and Voyager spacecraft observations of Jupiter and Saturn were combined to obtain a consistent measurement of temporal variation of the equatorial subsolar hydrogen emission. The outer planets appear to have rather independent behavior over time scales of the order of 10 yr, particularly in emission from the H Ly alpha line. The time interval from 1978 to the present shows variation of mean equatorial H Ly alpha brightness of 2 at Jupiter and 5 at Saturn. The relative magnitudes of the variations is sufficiently different to suggest that response to input from the Sun is at least nonlinear. The brightness of H2 band emission appears to be relatively more stable than H Ly alpha. There is evidence in IUE observations of a moderate increase in H2 band brightness with increasing time at Jupiter, in opposition to the variation in H Ly alpha. |
| File Size | 290264 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890001323 |
| Archival Resource Key | ark:/13960/t7cs0qc91 |
| Language | English |
| Publisher Date | 1988-06-01 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Deuterium Lyman Alpha Radiation Atmospheric Chemistry Hydrogen Spaceborne Astronomy Voyager Project Jupiter Atmosphere Iue Ultraviolet Astronomy 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 |
