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Proceedings Paper

The effects of dust outbursts on the anomalistic features observed by Rosetta Alice around 67P/Churyumov-Gerasimenko
Author(s): John Noonan; Eric Schindhelm; Joel Wm. Parker; Andrew Steffl; Michael Davis; S. Alan Stern; Zuni Levin; Sascha Kempf; Mihaly Horyani
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Paper Abstract

The Alice far-ultraviolet spectrograph on board the Rosetta spacecraft currently operating around the comet 67P/Churyumov-Gerasimenko experiences an anomalistic feature (AF) that has proven nearly constant at comet separations below 450 km.1 This feature varies rapidly on the second time scale and displays no relation to any measured parameters with the exception of comet separation. Simulations showed that nanograins and ions could create the feature through a range of possible masses, velocities, charges, and energies. This paper builds on research published in Reference 1 that explored the behaviors and morphology of the AF. Observations taken on February 19th, 2016 during a dust outburst observed by several other instruments (Eberhard Grun, in prep) verified that the most common morphology of the AF is linked to dust and charged nanograins.

Paper Details

Date Published: 18 July 2016
PDF: 8 pages
Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 99053J (18 July 2016); doi: 10.1117/12.2234283
Show Author Affiliations
John Noonan, Southwest Research Institute (United States)
Eric Schindhelm, Southwest Research Institute (United States)
Joel Wm. Parker, Southwest Research Institute (United States)
Andrew Steffl, Southwest Research Institute (United States)
Michael Davis, Southwest Research Institute (United States)
S. Alan Stern, Southwest Research Institute (United States)
Zuni Levin, Colorado Ctr. for Lunar Dust and Atmospheric Studies (United States)
Sascha Kempf, Colorado Ctr. for Lunar Dust and Atmospheric Studies (United States)
Mihaly Horyani, Colorado Ctr. for Lunar Dust and Atmospheric Studies (United States)


Published in SPIE Proceedings Vol. 9905:
Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray
Jan-Willem A. den Herder; Tadayuki Takahashi; Marshall Bautz, Editor(s)

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