期刊
GEOPHYSICAL RESEARCH LETTERS
卷 38, 期 -, 页码 -出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2011GL048022
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资金
- NASA [NAS5-96020]
- Heliospheric Guest Investigator Program [NNX07AG46G]
We comparemeasurements of He(+) by IMAGE/EUV with measurements of the local electron density ne by IMAGE/RPI to derive new constraints on the relative abundance of He(+) in the plasmasphere. Analysis of 1067 pairs of He+ and ne determinations shows that the ratio of He(+) to ne is much more variable early in the refilling process as compared to late, which may be related to interspecies differences in refilling rates. Further, the ratio is roughly constant with L for the periods studied, with a typical value of about 0.09. Citation: Sandel, B. R. (2011), Composition of the plasmasphere and implications for refilling, Geophys. Res. Lett., 38, L14104, doi: 10.1029/2011GL048022.
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