Abstract
The radial component of the flow speed VR in the heliosheath was decreasing between 2009.0 (108.5 AU) and 2010.3, at which time it reached the “stagnation region” where VR ≈ 0 km/s from 2010.3 to at least to 2011.0 (115.7 AU). The fluctuations of the hour averages of the magnetic field B observed by Voyager 1 (V1) each day throughout 2010 were primarily compressive (longitudinal) fluctuations, along the T (average B) direction in HG coordinates. The yearly average of the daily standard deviations (SD) of the compressive component of B was 〈SDc〉 = 〈SD(BT)〉 ≈ 〈SD(B)〉 ≈ 0.015 nT. The corresponding standard deviations of the transverse components 〈SDt〉 = SD(BR) > ≈ 〈SD(BN)〉 ≈ 0.006 nT. During 2010, 〈SDc〉/〈SDt〉 > 2.6 and 〈SDc〉/〈B〉 = 0.15. The counting rate of cosmic rays >70 MeV/nuc tends to increase with increasing B and SDc, contrary to expectations.
Published Version
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