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 |
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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 |