A CCD Image Archive Of Comet C/1995 O1 (Hale-Bopp): Dust Expansion Velocities |
| |
| Authors: | BRAUNSTEIN M COMSTOCK R HOFFMAN P WOMACK M DEGLMAN F PINNICK D AAKER G GOLDSCHEN M JACOBSON A ZILKA J FAITH D MOORE S RICOTTA J WEIST A MODI C |
| |
| Institution: | (1) Department of Physics, Central Washington University, Ellensburg, WA 98926, USA;(2) Department of Physics and Astronomy, St. Cloud State University, St.Cloud, MN 56301, USA;(3) School of Science, Pennsylvania State University at Erie, Erie, PA 16563, USA |
| |
| Abstract: | 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.
This revised version was published online in July 2006 with corrections to the Cover Date. |
| |
| Keywords: | Comet Hale-Bopp cometary arcs cometary shells cometary jets |
| 本文献已被 SpringerLink 等数据库收录！ |
|
