Recent infrared observations of comets with UKIRT and IRAS |
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| Authors: | JC Zarnecki JAM McDonnell WC Carey GH MacDonald N Eaton AJ Meadows |
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| Institution: | Space Sciences Laboratory, University of Kent, Canterbury, CT2 7NT, UK;Department of Astronomy, University of Leicester, Leicester, LE1 7RH, UK |
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| Abstract: | A preliminary analysis of infrared observations of comets P/Crommelin and P/Tempel 1 is presented. Comet P/Crommelin was observed from UKIRT over the range 1–20 micron, using standard filters. From the shape of the thermal emission spectrum, the temperature of the dust grains is estimated (T = 314 ± 3344K) and also the dust production rate (1.3 × 105gs?1). Comet P/Tempel 1 was observed with the Infrared Astronomical Satellite (IRAS). The emission is found to be considerably extended and there is also evidence for temperature variation of the dust grains as indicated by the 12 to 25 micron flux ratio. |
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