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Orbital evolution of comet 1995 O1 Hale-Bopp

Bailey, M.E. and Emel'yanenko, V.V. and Hahn, G. and Harris, N.W. and Hughes, K.A. and Muinonen, K. and Scotti, J.V. (1996) Orbital evolution of comet 1995 O1 Hale-Bopp. Monthly Notes of the Royal Astronomical Society, 281, pp. 916-924.

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Results from a series of long-term numerical integrations of orbits centred on that of C/1995 O1 (Hale-Bopp) are presented. Initially, 33 orbits taken from various sources were integrated in realistic models of the Solar system for various time-scales about the present in the range (-3, +2) Myr and analysed to assess the probability of different dynamical outcomes, such as Sun-grazing state or the number of orbits since the comet was captured from a long-period orbit in the Oort cloud. Further integrations were performed using an ensemble of 26 orbits more closely clustered about the present orbit of the comet, based on a more accurate method of orbit determination. We find that the ensemble half-life for the comet tp be captured or ejected is on the order of 0.5 Myr in the backward integrations and 1.2 Myr in the forward integrations, although a few members of our ensemble were captured during strong encounters with Jupiter within 10 revolutions. Comet Hale-Bopp has a probability pb.15 of evolving to a Sun-grazing end-state and, though not a 'new' comet (in the sense of being recently captured from the Oort cloud), it may be considered dynamically young.

Item URL in elib:https://elib.dlr.de/35405/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=1997,
Title:Orbital evolution of comet 1995 O1 Hale-Bopp
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Bailey, M.E.Armagh Observatory, Armagh, UKUNSPECIFIEDUNSPECIFIED
Emel'yanenko, V.V.Armagh Observatory; School of Electrical Engineering, Electronics and Physics, Liverpool, UKUNSPECIFIEDUNSPECIFIED
Hughes, K.A.School of Electrical Engineering, Electronics and Physics, Liverpool, UKUNSPECIFIEDUNSPECIFIED
Muinonen, K.Observatorio, Helsingin Yliopisto, FinlandUNSPECIFIEDUNSPECIFIED
Scotti, J.V.Lunar and Planetary Laboratory, University of Tucson, USAUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:Monthly Notes of the Royal Astronomical Society
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 916-924
Keywords:celestial mechanics; stellar dynamics, comets, C/1995 O1; Hale-Bopp; meteors, meteoroids
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: DLR-Beauftragter, elib
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 09:53

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