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What is the Parent of CH in the Coma of Comet C/1995 O1 (Hale-Bopp)? |
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| Authors: | Cochran Anita L Boice D C Barker Edwin S Laffont Celine |
| Institution: | 1.The University of Texas, Austin, TX, 78712, USA ;2.Southwest Research Institute, San Antonio, TX, 78228, USA ;3.The University of Texas, Austin, TX, 78712, USA ;4.Observatoire de Besan?on, Besan?on, France ; |
| Abstract: | The ratio of CH4/CO in comets is an important indicator of the region of their formation. However, it is difficult to measure the quantity of CH+. The Giotto Ion Mass Spectrometer experiment observed a quantity of CH+ which seemed inconsistent with the amount of CH+. Thus, it was proposed that a source of the CH+ was a distributed source in the dust. We tested this hypothesis by observing the CH emission strength in comet Hale-Bopp as a function of dustiness. We see no strong correlation between the dust and the gas. Thus, for Hale-Bopp,dust is unlikely to be a dominant source of CH. This revised version was published online in July 2006 with corrections to the Cover Date. |
| Keywords: | Comets chemistry spectra |
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