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| Content Provider | EDP Sciences |
|---|---|
| Author | R. Schulz J. A. Stüwe H. Boehnhardt |
| Abstract | The evolution of the activity and composition of the coma of Rosetta target comet 67P/Churyumov-Gerasimenko was studied along its postperihelion orbit from 2.29 AU to 3.22 AU. The comet had a major drop of activity between 2.5 AU and 2.9 AU, which manifested most obviously in its light curve (the brightness decreased by 3 mag), but is also confirmed by the production rates derived from spectrophotometric measurements. The strong decrease of activity indicates a change in the outgassing behaviour of the nucleus and might be due to water sublimation becoming less efficient. The spectrophotometric measurements at 2.9 AU show that the coma is at least slightly depleted in C2 with respect to CN. |
| Ending Page | L21 |
| Starting Page | L19 |
| Page Count | 3 |
| File Format | HTM / HTML PDF |
| ISSN | 00046361 |
| Alternate Webpage(s) | https://www.aanda.org/articles/aa/abs/2004/28/aagc193/aagc193.html |
| e-ISSN | 14320746 |
| Issue Number | 1 |
| Journal | Astronomy & Astrophysics |
| Volume Number | 422 |
| DOI | 10.1051/0004-6361:20040190 |
| Language | English |
| Publisher | EDP Sciences |
| Publisher Date | 2004-07-01 |
| Access Restriction | Open |
| Rights Holder | © ESO, 2004 |
| Subject Keyword | comets Rosetta 67P/Churyumov-Gerasimenko production rates comets / Rosetta / 67P/Churyumov-Gerasimenko / production rates |
| Content Type | Text |
| Resource Type | Article |
| Subject | Astronomy and Astrophysics Space and Planetary Science |
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