A CCD Image Archive Of Comet C/1995 O1 (Hale-Bopp): Dust Expansion Velocities

Details A CCD Image Archive Of Comet C/1995 O1 (Hale-Bopp): Dust Expansion Velocities A CCD Image Archive Of Comet C/1995 O1 (Hale-Bopp): Dust Expansion Velocities

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997em%26p...78..219b&link_type=abstract

Earth, Moon, and Planets, v. 78, Issue 1/3, p. 219-227 (1997).

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Comet Hale-Bopp, Cometary Arcs, Cometary Shells, Cometary Jets

Scientific paper

An optical archive of comet Hale-Bopp was obtained over 28 nights from June 1996 to May 1997 covering a range of heliocentric distances of r = 4.12 - 0.91. The CCD images were obtained with the 0.8-m University of Washington Manastash Ridge Observatory and the 0.25-m Pennsylvania State University at Eriemobile observatory. The reduced images clearly document the evolution of features of the coma, which were dominated by radial jetsfrom r = 4.1 - 2.3 AU, curved fan-shaped jets from r = 1.2 - 1.0 AU, and arcs or shells for 0.9 < r < 1.0 AU. We present the images and derive an average dust expansion velocity of Vdust = 0.67 ± 0.07 km s-1 from measurements of the arc features. The images in thearchive will be made available to other researchers for further study.

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