Neutral H Density at the Termination Shock: A Consolidation of Recent Results

被引:61
作者
Bzowski, M. [1 ]
Mobius, E. [2 ,3 ]
Tarnopolski, S. [1 ]
Izmodenov, V. [4 ,5 ]
Gloeckler, G. [6 ]
机构
[1] PAS, Space Res Ctr, Warsaw, Poland
[2] Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA
[3] Univ New Hampshire, Dept Phys, Durham, NH 03824 USA
[4] Moscow MV Lomonosov State Univ, Moscow, Russia
[5] RAS, Space Res Inst, Moscow 117901, Russia
[6] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA
基金
俄罗斯基础研究基金会; 美国国家航空航天局;
关键词
Heliosphere; Local interstellar medium; Neutral interstellar gas; Heliospheric interface; Pickup ions; Heliospheric UV glow; SOLAR-WIND INTERACTION; HELIUM FOCUSING CONE; LYMAN-ALPHA; INTERSTELLAR HYDROGEN; HELIOSPHERIC INTERFACE; PICKUP ION; CHARGE-EXCHANGE; GLOBAL HELIOSPHERE; CYCLE DEPENDENCE; MAGNETIC-FIELD;
D O I
10.1007/s11214-008-9479-0
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We discuss a consolidation of determinations of the density of neutral interstellar H at the nose of the termination shock carried out with the use of various data sets, techniques, and modeling approaches. In particular, we focus on the determination of this density based on observations of H pickup ions on Ulysses during its aphelion passage through the ecliptic plane. We discuss in greater detail a novel method of determination of the density from these measurements and review the results from its application to actual data. The H density at TS derived from this analysis is equal to 0.087 +/- 0.022 cm(-3), and when all relevant determinations are taken into account, the consolidated density is obtained at 0.09 +/- 0.022 cm(-3). The density of H in CHISM based on literature values of filtration factor is then calculated at 0.16 +/- 0.04 cm(-3).
引用
收藏
页码:177 / 190
页数:14
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