Show simple item record

Birth of a comet magnetosphere: A spring of water ions

dc.contributor.authorNilsson, H.
dc.contributor.authorStenberg Wieser, G.
dc.contributor.authorBehar, E.
dc.contributor.authorSimon Wedlund, C.
dc.contributor.authorGunell, H.
dc.contributor.authorYamauchi, M.
dc.contributor.authorLundin, R.
dc.contributor.authorBarabash, S.
dc.contributor.authorWieser, M.
dc.contributor.authorCarr, C.
dc.contributor.authorCupido, E.
dc.contributor.authorBurch, J.L.
dc.contributor.authorFedorov, A.
dc.contributor.authorSauvaud, J.-A.
dc.contributor.authorKoskinen, H.
dc.contributor.authorKallio, E.
dc.contributor.authorLebreton, J.-P.
dc.contributor.authorEriksson, A.
dc.contributor.authorEdberg, N.
dc.contributor.authorGoldstein, R.
dc.contributor.authorHenri, P.
dc.contributor.authorKoenders, C.
dc.contributor.authorMokashi, P.
dc.contributor.authorNemeth, Z.
dc.contributor.authorRichter, I.
dc.contributor.authorSzego, K.
dc.contributor.authorVolwerk, M.
dc.contributor.authorVallat, C.
dc.contributor.authorRubin, M.
dc.date2015
dc.date.accessioned2016-03-24T10:07:59Z
dc.date.available2016-03-24T10:07:59Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/2707
dc.descriptionThe 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.
dc.languageeng
dc.titleBirth of a comet magnetosphere: A spring of water ions
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freewater
dc.subject.freeastronomy
dc.subject.freecomet
dc.subject.freeion exchange
dc.subject.freemagnetosphere
dc.subject.freesolar wind
dc.subject.freealpha radiation
dc.subject.freeArticle
dc.subject.freeastronomy
dc.subject.freeatmosphere
dc.subject.freeelectric field
dc.subject.freegravity
dc.subject.freehigh temperature
dc.subject.freeion current
dc.subject.freemagnetic field
dc.subject.freeparticle size
dc.subject.freepriority journal
dc.subject.freeultraviolet radiation
dc.source.titleScience
dc.source.volume347
dc.source.issue6220
dc.source.pageA0571
Orfeo.peerreviewedYes
dc.identifier.doi10.1126/science.aaa0571
dc.identifier.scopus2-s2.0-84921808746


Files in this item

Thumbnail
Name:
Nilsson(2015a).pdf
Size:
1.714Mb
Format:
PDF
View/Open

This item appears in the following Collection(s)

Show simple item record