@article{Nilsson:2015:10.1126/science.aaa0571,
author = {Nilsson, H and Wieser, GS and Behar, E and Wedlund, CS and Gunell, H and Yamauchi, M and Lundin, R and Barabash, S and Wieser, M and Carr, C and Cupido, E and Burch, JL and Fedorov, A and Sauvaud, J-A and Koskinen, H and Kallio, E and Lebreton, J-P and Eriksson, A and Edberg, N and Goldstein, R and Henri, P and Koenders, C and Mokashi, P and Nemeth, Z and Richter, I and Szego, K and Volwerk, M and Vallat, C and Rubin, M},
doi = {10.1126/science.aaa0571},
journal = {Science},
title = {Birth of a comet magnetosphere: A spring of water ions},
url = {http://dx.doi.org/10.1126/science.aaa0571},
volume = {347},
year = {2015}
}

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TY  - JOUR
AB  - The Rosetta mission shall accompany comet 67P/Churyumov-Gerasimenko from a heliocentric distance of >3.6 astronomical units through perihelion passage at 1.25 astronomical units, spanning low and maximum activity levels. Initially, the solar wind permeates the thin comet atmosphere formed from sublimation, until the size and plasma pressure of the ionized atmosphere define its boundaries: A magnetosphere is born. Using the Rosetta Plasma Consortium ion composition analyzer, we trace the evolution from the first detection of water ions to when the atmosphere begins repelling the solar wind (~3.3 astronomical units), and we report the spatial structure of this early interaction. The near-comet water population comprises accelerated ions (<800 electron volts), produced upstream of Rosetta, and lower energy locally produced ions; we estimate the fluxes of both ion species and energetic neutral atoms.
AU  - Nilsson,H
AU  - Wieser,GS
AU  - Behar,E
AU  - Wedlund,CS
AU  - Gunell,H
AU  - Yamauchi,M
AU  - Lundin,R
AU  - Barabash,S
AU  - Wieser,M
AU  - Carr,C
AU  - Cupido,E
AU  - Burch,JL
AU  - Fedorov,A
AU  - Sauvaud,J-A
AU  - Koskinen,H
AU  - Kallio,E
AU  - Lebreton,J-P
AU  - Eriksson,A
AU  - Edberg,N
AU  - Goldstein,R
AU  - Henri,P
AU  - Koenders,C
AU  - Mokashi,P
AU  - Nemeth,Z
AU  - Richter,I
AU  - Szego,K
AU  - Volwerk,M
AU  - Vallat,C
AU  - Rubin,M
DO  - 10.1126/science.aaa0571
PY  - 2015///
SN  - 0036-8075
TI  - Birth of a comet magnetosphere: A spring of water ions
T2  - Science
UR  - http://dx.doi.org/10.1126/science.aaa0571
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000348225800033&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/21661
VL  - 347
ER  - 

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