DOI: 10.1126/science.1098388. Modeling the Nucleus and Jets of Comet 81P/Wild 2 Based on the Stardust Encounter Data

Modeling the Nucleus and Jets of Comet 81P/Wild 2 Based on the Stardust Encounter Data

10.1126/science.1098388

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

We interpret the nucleus properties and jet activity from the Stardust spacecraft imaging and the onboard dust monitoring system data. Triangulation of 20 jets shows that 2 emanate from the nucleus dark side and 16 emanate from sources that are on slopes where the Sun's elevation is greater than predicted from the fitted triaxial ellipsoid. Seven sources, including five in the Mayo depression, coincide with relatively bright surface spots. Fitting the imaged jets, the spikelike temporal distribution of dust impacts indicates that the spacecraft crossed thin, densely populated sheets of particulate ejecta extending from small sources on the rotating nucleus, consistent with an emission cone model.

Bibliography

Sekanina, Z., Brownlee, D. E., Economou, T. E., Tuzzolino, A. J., & Green, S. F. (2004). Modeling the Nucleus and Jets of Comet 81P/Wild 2 Based on the Stardust Encounter Data. Science, 304(5678), 1769â1774.

Authors 5

Zdenek Sekanina (first)
Donald E. Brownlee (additional)
Thanasis E. Economou (additional)
Anthony J. Tuzzolino (additional)
Simon F. Green (additional)

References 18 Referenced 91

S. Larson, Bull. Am. Astron. Soc.10, 589 (1978). / Bull. Am. Astron. Soc. (1978)
10.1038/273134a0
10.1016/0019-1035(79)90006-X
10.1146/annurev.ea.09.050181.000553
H. U. Kelleret al., Astron. Astrophys.187, 807 (1987). / Astron. Astrophys. (1987)
Z. Sekanina, Proc. Symp. Diversity Similarity CometsESA SP-278, 315 (1987). / Proc. Symp. Diversity Similarity Comets (1987)
Z. Sekanina, J. Geophys. Res.108, 8112 (2003). / J. Geophys. Res. (2003)
10.1086/311147
R. Vasundhara P. Chakraborty personal communication.
T. L. Farnham, Bull. Am. Astron. Soc.35, 971 (2003). / Bull. Am. Astron. Soc. (2003)
10.1126/science.1097899
10.1016/j.icarus.2003.07.008
The names given to features on comet Wild 2 are informal and were chosen by the Stardust team. They are not approved by or under consideration for approval from the International Astronomical Union (IAU).
10.1126/science.1098759
10.1086/376440
Z. Sekanina, Comets, L. L. Wilkening, Ed. (Univ. of Arizona, Tucson, AZ, 1982), p. 251. / Comets (1982)
10.1093/mnras/289.3.535
We thank P. Tsou for continuous encouragement and some assistance. This research was carried out in part at the Jet Propulsion Laboratory California Institute of Technology under contract with NASA. D.E.B. acknowledges support from NASA. The University of Chicago effort was supported by LMA Contract RF6-457089. S.F.G. acknowledges the financial support of the UK Particle Physics and Astronomy Research Council.

Dates

Type	When
Created	21 years, 2 months ago (June 17, 2004, 4:53 p.m.)
Deposited	1 year, 7 months ago (Jan. 9, 2024, 11:20 p.m.)
Indexed	4 months, 3 weeks ago (April 3, 2025, 8:33 p.m.)
Issued	21 years, 2 months ago (June 18, 2004)
Published	21 years, 2 months ago (June 18, 2004)
Published Print	21 years, 2 months ago (June 18, 2004)

Funders 0

None

BibTeX

@article{Sekanina_2004, title={Modeling the Nucleus and Jets of Comet 81P/Wild 2 Based on the Stardust Encounter Data}, volume={304}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1098388}, DOI={10.1126/science.1098388}, number={5678}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Sekanina, Zdenek and Brownlee, Donald E. and Economou, Thanasis E. and Tuzzolino, Anthony J. and Green, Simon F.}, year={2004}, month=jun, pages={1769–1774} }

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