Estimating the Thickness of the Heliosheath from CELIAS/HSTOF and Voyager 1 Data

Details Estimating the Thickness of the Heliosheath from CELIAS/HSTOF and Voyager 1 Data Estimating the Thickness of the Heliosheath from CELIAS/HSTOF and Voyager 1 Data

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006apj...647l..69c&link_type=abstract

The Astrophysical Journal, Volume 647, Issue 1, pp. L69-L72.

Astronomy and Astrophysics

Astronomy

8

Acceleration Of Particles, Interplanetary Medium, Shock Waves, Sun: Solar Wind

Scientific paper

We use recent Voyager 1 measurements of the ion fluxes beyond the termination shock and the SOHO HSTOF/CELIAS measured fluxes of the energetic neutral hydrogen and helium at 1 AU to estimate the neutral hydrogen column density NH in the heliosheath. Our best estimate is NH=1.13×1014 cm-2. The result corresponds to an average thickness of the heliosheath, in the forward part of the heliosphere (within 155° from the nose direction and 17° from the ecliptic), of L~75 AU for an average hydrogen density of nH=0.1 cm-3 in the heliosheath.

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