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

被引：0
|
作者：
M. BRAUNSTEIN
R. COMSTOCK
P. HOFFMAN
M. WOMACK
F. DEGLMAN
D. PINNICK
G. AAKER
M. GOLDSCHEN
A. JACOBSON
J. ZILKA
D. FAITH
S. MOORE
J. RICOTTA
A. WEIST
C. MODI
机构：
[1] Central Washington University,Department of Physics
[2] St. Cloud State University,Department of Physics and Astronomy
[3] Pennsylvania State University at Erie,School of Science
来源：
Earth, Moon, and Planets | 1997年 / 78卷
关键词：
Comet Hale-Bopp; cometary arcs; cometary shells; cometary jets;
D O I：
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学科分类号：
摘要：
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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页码：219 / 227
页数：8
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