Imperial College London
Portrait Picture

Mr Chris Carr

Faculty of Natural Sciences, Department of Physics

Senior Research Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 7765c.m.carr

 
 
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Assistant

 

Mr Luke Kratzmann +44 (0)20 7594 7770

 
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Location

 

6M72Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Goetz:2016:mnras/stw3148,
author = {Goetz, C and Koenders, C and Hansen, KC and Burch, J and Carr, C and Eriksson, A and Fruehauff, D and Guettler, C and Henri, P and Nilsson, H and Richter, I and Rubin, M and Sierks, H and Tsurutani, B and Volwerk, M and Glassmeier, KH},
doi = {mnras/stw3148},
journal = {Monthly Notices of the Royal Astronomical Society},
pages = {S459--S467},
title = {Structure and evolution of the diamagnetic cavity at comet 67P/Churyumov-Gerasimenko},
url = {http://dx.doi.org/10.1093/mnras/stw3148},
volume = {462},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The long duration of the Rosetta mission allows us to study the evolution of the diamagnetic cavity at comet 67P/Churyumov–Gerasimenko in detail. From 2015 April to 2016 February 665 intervals could be identified where Rosetta was located in a zero-magnetic-field region. We study the temporal and spatial distribution of this cavity and its boundary and conclude that the cavity properties depend on the long-term trend of the outgassing rate, but do not respond to transient events at the spacecraft location, such as outbursts or high neutral densities. Using an empirical model of the outgassing rate, we find a functional relationship between the outgassing rate and the distance of the cavity to the nucleus. There is also no indication that this unexpectedly large distance is related to unusual solar wind conditions. Because the deduced shape of the cavity boundary is roughly elliptical on small scales and the distances of the boundary from the nucleus are much larger than expected we conclude that the events observed by Rosetta are due to a moving instability of the cavity boundary itself.
AU  - Goetz,C
AU  - Koenders,C
AU  - Hansen,KC
AU  - Burch,J
AU  - Carr,C
AU  - Eriksson,A
AU  - Fruehauff,D
AU  - Guettler,C
AU  - Henri,P
AU  - Nilsson,H
AU  - Richter,I
AU  - Rubin,M
AU  - Sierks,H
AU  - Tsurutani,B
AU  - Volwerk,M
AU  - Glassmeier,KH
DO  - mnras/stw3148
EP  - 467
PY  - 2016///
SN  - 0035-8711
SP  - 459
TI  - Structure and evolution of the diamagnetic cavity at comet 67P/Churyumov-Gerasimenko
T2  - Monthly Notices of the Royal Astronomical Society
UR  - http://dx.doi.org/10.1093/mnras/stw3148
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000403172000040&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/49546
VL  - 462
ER  -
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