ORBi: Chua D. H. - High resolution FUV observations of proton aurora

Reference : High resolution FUV observations of proton aurora


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Multidisciplinary, general & others
	To cite this reference:	http://hdl.handle.net/2268/13382

Title :	High resolution FUV observations of proton aurora
Language :	English
Author, co-author :	Chua, D. H. [> > > >]
	Dymond, K. F. [> > > >]
	Budzien, S. A. [> > > >]
	McCoy, R. P. [> > > >]
	Gérard, Jean-Claude [Université de Liège - ULg > Département d'astrophys.]
	Coumans, Valérie [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
	Bisikalo, D. [> > > >]
	Shematovich, V. [> > > >]
Publication date :	24-Sep-2003
Journal title :	Geophysical Research Letters
Publisher :	Amer Geophysical Union
Volume :	30
Issue/season :	18
Audience :	International
ISSN :	0094-8276
City :	Washington
Keywords :	[en] proton auroral precipitation ; FUV aurora ; ARGOS HITS
Abstract :	[en] We present new FUV observations of Doppler-shifted Lyman-alpha emissions from proton aurora obtained from the High Resolution Ionospheric and Thermospheric Spectrograph ( HITS) aboard the Advanced Research and Global Observation Satellite (ARGOS). The HITS instrument observes the Doppler-shifted H Lyman-alpha emissions from proton precipitation with 1.5 Angstrom resolution. The high spectral resolution of these measurements allows the auroral Lyman-alpha emissions to be separated from the intense geocoronal background. The measured proton aurora Doppler spectra are modeled using a Monte Carlo simulation of proton flux transport. The forward modeling performed with this code allows us to infer the characteristic energies of the incident protons from the measured Lyman-alpha Doppler spectra. The inferred characteristics of dayside versus nightside proton precipitation are compared and used to identify the magnetospheric regions from which the particles likely originated.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/13382
DOI :	10.1029/2003GL017830
Other URL :	http://www.agu.org/pubs/crossref/2003/2003GL017830.shtml

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