Radio observations from Australia of Comet 9P/Tempel 1 for Deep Impact

P. A. Jones, J. M. Sarkissian, M. G. Burton, M. A. Voronkov, M. D. Filipović

Research output: Chapter in Book / Conference PaperChapter

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 languageEnglish
Title of host publicationDeep 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
EditorsHans Ulrich Käufl, C. Sterken
Place of PublicationGermany
PublisherSpringer
Pages83-86
Number of pages4
ISBN (Electronic)9783540769590
ISBN (Print)9783540769583
DOIs
Publication statusPublished - 2009

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