Abstract
We present radio observations of comet 9P/Tempel 1, associated with the Deep Impact mission, made with the Australia Telescope National Facility. Weak 18-cm OH emission was detected with the Parkes 64-m telescope, in data averaged over July 4-6, at a level of 12 ± 3 mJy km/s. The OH emission was increasing, but we stopped observing after July 6. We did not detect the HCN 1-0 with the Mopra 22-m telescope over the period July 2-6. The 3 σ limit was 0.06 K km/s for HCN on July 4 after the impact. We did not detect the HCN 1-0 line, 6.7 GHz CH3OH line or 3.4-mm continuum with the Australia Telescope Compact Array (ATCA) on July 4, giving further limits on any small-scale structure due to an outburst.
| Original language | English |
|---|---|
| Title of host publication | Deep Impact as a World Observatory Event: Synergies in Space, Time, and Wavelength: Proceedings of the ESO/VUB Conference Held in Brussels, Belgium, 7-10 August 2006 |
| Editors | Hans Ulrich Käufl, C. Sterken |
| Place of Publication | Germany |
| Publisher | Springer |
| Pages | 83-86 |
| Number of pages | 4 |
| ISBN (Electronic) | 9783540769590 |
| ISBN (Print) | 9783540769583 |
| DOIs | |
| Publication status | Published - 2009 |