Imaging of the Structure and Evolution of the Coma Morphology of Comet Hale–Bopp (C/1995 O1) |
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Authors: | Mueller Béatrice EA Samarasinha Nalin H Belton Michael JS |
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Institution: | (1) National Optical Astronomy Observatories, 950 N Cherry Avenue, Tucson, AZ, 85719, USA |
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Abstract: | Imaging of coma morphology of Comet Hale-Bopp from pre-perihelion through perihelion to post-perihelion is presented. Broad
band images from 1996 and late 1997 show nearly radial jets streaking out from the nucleus. During both 1996 and late 1997,
the brightest jets are approximately in a northern/northeastern direction. The slight curvature present in these radial jets
is consistent with radiation pressure effects. Narrow band images around perihelion show two distinctive pictures of the CN
and the continuum coma morphology. Spirals are clearly seen in the CN images but not in the continuum where structure is confined
to the sunward side. The CN structure is consistent with continuous outgassing of the source of CN from the nucleus during
both day and night.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | Comets – - Hale– Bopp C/1995 O1 jets dust CN |
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