Effects of the convective field on weakly outgassing comets.
File(s)
Published version
Author(s)
Beth, Arnaud
Galand, MIF
Type
Journal Article
Abstract
By applying a kinetic approach, we have developed two models in order to assess the influence of one main driver of plasma acceleration, the convective electric field, on the cometary ion distribution at 67P/Churyumov-Gerasimenko (67P/C-G). This electric field is carried by the solar wind and corresponds to the acceleration undergone by cometary ions ultimately picked up. We have quantified its contribution on ion number density and mean velocity profiles, supported by an intercomparison with the recent literature. We found that the ion number density should reflect a departure from the observed ∼1/r law. We discuss reasons for this discrepancy.
Date Issued
2018-02-20
Date Acceptance
2018-02-06
Citation
Monthly Notices of the Royal Astronomical Society, 2018, 469 (S2), pp.S824-S841
ISSN
0035-8711
Publisher
Oxford University Press (OUP)
Start Page
S824
End Page
S841
Journal / Book Title
Monthly Notices of the Royal Astronomical Society
Volume
469
Issue
S2
Copyright Statement
© 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society
Sponsor
Imperial College Trust
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Grant Number
N/A
ST/K001051/1
ST/N000692/1
Subjects
0201 Astronomical And Space Sciences
Astronomy & Astrophysics
Date Publish Online
2018-02-20