A THREE-COORDINATE SYSTEM (ECLIPTIC, GALACTIC, ISMF) SPECTRAL ANALYSIS OF HELIOSPHERIC ENA EMISSIONS USING CASSINI /INCA MEASUREMENTS

A THREE-COORDINATE SYSTEM (ECLIPTIC, GALACTIC, ISMF) SPECTRAL ANALYSIS OF HELIOSPHERIC ENA EMISSIONS USING CASSINI /INCA MEASUREMENTS

In the present study, we use all-sky energy-resolved energetic neutral atom (ENA) maps obtained by the Ion and Neutral CAmera (INCA) instrument on board Cassini that correspond to the time period from 2003 to 2009, in four discrete energy passbands (~5.4 to ~55 keV), to investigate the geometrical c...

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Veröffentlicht in:The Astrophysical journal 2013-11, Vol.778 (1), p.1-13
Hauptverfasser: DIALYNAS, K, KRIMIGIS, S M, MITCHELl, D G, ROELOF, E C, Decker, R B
Format: Artikel
Sprache:eng
Schlagworte:
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
ASYMMETRY
ATOMS
Belts
CAMERAS
Cassini mission
COORDINATES
COSMIC RADIATION
COUNTING RATES
DISTRIBUTION
Ecliptic
EMISSION
Emission analysis
ENERGY DEPENDENCE
EQUATOR
HELIOSPHERE
INTERSTELLAR MAGNETIC FIELDS
KEV RANGE
MINIMIZATION
Onboard
PLASMA
SKY
SOLAR WIND
SPECTRA
Spectral emissivity
SUN
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Zusammenfassung:In the present study, we use all-sky energy-resolved energetic neutral atom (ENA) maps obtained by the Ion and Neutral CAmera (INCA) instrument on board Cassini that correspond to the time period from 2003 to 2009, in four discrete energy passbands (~5.4 to ~55 keV), to investigate the geometrical characteristics of the belt (a broad band of emission in the sky). The heliospheric ENA emissions are mapped in three different coordinate systems (ecliptic, Galactic, and interstellar magnetic field (ISME)), and spectral analyses are performed to further examine the belt's possible energy dependence.
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/778/1/40