Implications of fluctuations in the distribution functions of interstellar pick-up ions for the scattering of low rigidity particles

被引：53

作者：

Fisk, LA

Schwadron, NA

Gloeckler, G

机构：

[1] UNIV MARYLAND,DEPT PHYS,COLLEGE PK,MD 20742

[2] UNIV MARYLAND,ISTP,COLLEGE PK,MD 20742

来源：

GEOPHYSICAL RESEARCH LETTERS | 1997年 / 24卷 / 01期

关键词：

D O I：

10.1029/96GL03752

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The distribution functions of interstellar pick-up hydrogen and helium exhibit fluctuations which are correlated. An analysis of these fluctuations reveals that they may be the result of variations in, and provide additional evidence for, large mean free paths for these low rigidity particles. An analysis of the properties of the distribution function of pick-up hydrogen reveals that these particles do suffer considerable adiabatic cooling, and that the likely cause for the long mean free path is the inability of the particles to scatter through 90 degrees pitch angle.

引用

页码：93 / 96

页数：4

共 9 条

[1]

AXFORD WI, 1972, NASA PUBL, V308, P609

[2] PROTON AND ELECTRON MEAN FREE PATHS - THE PALMER CONSENSUS REVISITED [J].