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The radial temperature profile of the solar wind
| Content Provider | Semantic Scholar |
|---|---|
| Author | Richardson, J. D. Smith, Charles W. |
| Copyright Year | 2003 |
| Abstract | [1] The Voyager data show a decrease in temperature in the inner heliosphere, an increase in temperature from 30– 50 AU, a decrease from 50–63 AU, followed by another increase from 63–68 AU. Models of pickup proton heating predict a monotonic temperature rise beyond about 30 AU but do not account for the smaller scale (few AU) temperature variations. At 1 AU, the solar wind temperature is a strong function of the solar wind speed. We find that incorporating a temperature dependence on speed into the pickup proton heating results can reproduce much of the smaller-scale temperature variation observed out to 68 AU. The same speed-temperature dependence provides good fits to data from both the outer heliosphere and from near Earth. Since a large fraction of the proton energy results from heating, this work implies that the heating rate is a function of the speed. |
| File Format | PDF HTM / HTML |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Allergy Unit FITS Gold Heating NCR Voyager Protons Radial (radio) Small |
| Content Type | Text |
| Resource Type | Article |
