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Production and kinematics of sodium atoms in the coma of comet Hale-Bopp

Arpigny, C. and Rauer, H. and Manfroid, J. and Hutsemékers, D. and Jehin, E. and Crovisier, J. and Jorda, L. (1998) Production and kinematics of sodium atoms in the coma of comet Hale-Bopp. Astronomy and Astrophysics, 334, L53-L56.

Full text not available from this repository.

Abstract

High-resolution spectra of sodium D line emission in comet Hale-Bopp (C/1995 O1) were obtained at the Observatoire de Haute-Provence, France, on 25-27 March and on 15-17 April 1997. The observations have been used to measure the velocity of sodium atoms in the coma within 2 10_5 km from the nucleus. A comparison between the March and April dat provides an illustration of the influence of the heliocentric radial velocity on the strength of the fluorescence (Swings effect), and on the velocity of Na atoms achieved by solar radiation pressure acceleration. Evidence for the presence of a distributed source in the coma is found from relatively high tailward velocities on the sunward side of the coma, in addition to the sunward extenct of sodium emission up to 1.4 10_5 km in April.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=1999,
Title:Production and kinematics of sodium atoms in the coma of comet Hale-Bopp
Authors:
AuthorsInstitution or Email of Authors
Arpigny, C.Institut d'Astrophysique et de Géophysique, Liège, Belgium
Rauer, H.UNSPECIFIED
Manfroid, J.Institut d'Astrophysique et de Géophysique, Liège, Belgium
Hutsemékers, D.Institut d'Astrophysique et de Géophysique, Liège, Belgium
Jehin, E.Institut d'Astrophysique et de Géophysique, Liège, Belgium
Crovisier, J.Observatoire de Paris-Meudon, Meudon, France
Jorda, L.MPI für Aeronomie, Katlenburg-Lindau, Germany
Date:1998
Journal or Publication Title:Astronomy and Astrophysics
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:334
Page Range:L53-L56
Status:Published
Keywords:Comets, Comet C/1995 O1 (Hale-Bopp), Atomic processes
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Institut für Planetenerkundung
Deposited By: Susanne Pieth
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 15:46

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