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Journal Articles Meteoritics and Planetary Science Year : 2014

Stardust Interstellar Preliminary Examination X: Impact speeds and directions of interstellar grains on the Stardust dust collector

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Robert Lettieri
  • Function : Author
William Marchant
  • Function : Author
Larry R. Nittler
  • Function : Author
Ryan Ogliore
  • Function : Author
Wei Ja Ong
  • Function : Author
Mark C. Price
  • Function : Author
S. A. Sandford
  • Function : Author
Juan-Angel Sans Tresseras
  • Function : Author
Sylvia Schmitz
  • Function : Author
Tom Schoonjans
  • Function : Author
Geert Silversmit
  • Function : Author
Alexandre Simionovici
Vicente A. Sole
  • Function : Author
Thomas Stephan
  • Function : Author
Julien Stodolna
  • Function : Author
Rhonda M. Stroud
  • Function : Author
Steven Sutton
  • Function : Author
Mario Trieloff
  • Function : Author
Peter Tsou
  • Function : Author
Akira Tsuchiyama
  • Function : Author
Tolek Tyliszczak
  • Function : Author
Bart Vekemans
  • Function : Author
Laszlo Vincze
  • Function : Author
Joshua von Korff
  • Function : Author
Naomi Wordsworth
  • Function : Author
Daniel Zevin
  • Function : Author
Michael E. Zolensky
  • Function : Author
Veerle J. Sterken
  • Function : Author
Andrew J. Westphal
  • Function : Author
Nicolas Altobelli
  • Function : Author
Eberhard Gruen
  • Function : Author
Jon K. Hillier
  • Function : Author
Frank Postberg
  • Function : Author
Ralf Srama
  • Function : Author
Carlton Allen
  • Function : Author
David Anderson
Asna Ansari
  • Function : Author
Sasa Bajt
  • Function : Author
Ron S. Bastien
  • Function : Author
Nabil Bassim
  • Function : Author
Hans A. Bechtel
  • Function : Author
Janet Borg
  • Function : Author
Frank E. Brenker
  • Function : Author
John Bridges
  • Function : Author
Donald E. Brownlee
  • Function : Author
Mark Burchell
  • Function : Author
Manfred Burghammer
  • Function : Author
Anna L. Butterworth
  • Function : Author
Hitesh Changela
  • Function : Author
Peter Cloetens
  • Function : Author
Andrew M. Davis
  • Function : Author
Ryan Doll
  • Function : Author
Christine Floss
  • Function : Author
George Flynn
  • Function : Author
David Frank
  • Function : Author
Zack Gainsforth
  • Function : Author
Philipp R. Heck
  • Function : Author
Peter Hoppe
  • Function : Author
Bruce Hudson
  • Function : Author
Joachim Huth
  • Function : Author
Brit Hvide
  • Function : Author
Anton Kearsley
  • Function : Author
Ashley J. King
  • Function : Author
Barry Lai
  • Function : Author
Jan Leitner
  • Function : Author
Hugues Leroux
  • Function : Author
Ariel Leonard
  • Function : Author

Abstract

On the basis of an interstellar dust model compatible with Ulysses and Galileo observations, we calculate and predict the trajectories of interstellar dust (ISD) in the solar system and the distribution of the impact speeds, directions, and flux of ISD particles on the Stardust Interstellar Dust Collector during the two collection periods of the mission. We find that the expected impact velocities are generally low (10 km s(-1)) for particles with the ratio of the solar radiation pressure force to the solar gravitational force beta 1, and that some of the particles will impact on the cometary side of the collector. If we assume astronomical silicates for particle material and a density of 2 g cm(-3), and use the Ulysses measurements and the ISD trajectory simulations, we conclude that the total number of (detectable) captured ISD particles may be on the order of 50. In companion papers in this volume, we report the discovery of three interstellar dust candidates in the Stardust aerogel tiles. The impact directions and speeds of these candidates are consistent with those calculated from our ISD propagation model, within the uncertainties of the model and of the observations.

Dates and versions

hal-02351050 , version 1 (06-11-2019)

Identifiers

Cite

Robert Lettieri, William Marchant, Larry R. Nittler, Ryan Ogliore, Wei Ja Ong, et al.. Stardust Interstellar Preliminary Examination X: Impact speeds and directions of interstellar grains on the Stardust dust collector. Meteoritics and Planetary Science, 2014, 49 (9, SI), pp.1680--1697. ⟨10.1111/maps.12219⟩. ⟨hal-02351050⟩
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