Sustained Energetic Particle Intensity Enhancements at Voyager 1 Beginning in 2002
نویسندگان
چکیده
A possible explanation for the large low-energy enhancement of outer heliospheric ion and electron intensities observed at Voyager 1 (V1) during 2002/213 to 2003/035 is an encounter with the solar wind termination shock (TS) [4]. We study the energy spectra of H, He, C, & O ions around this time period and, using the anomalous cosmic ray (ACR) species scaling [2], find the enhancement to be consistent with an ACR population.
منابع مشابه
Correlation between energetic ion enhancements and heliospheric current sheet crossings in the outer heliosphere
[1] Voyagers 1 and 2 observed highly-variable beams of energetic ions in the foreshock region upstream of the termination shock (TS). At Voyager 2 (V2), the ion intensities are generally not related to the plasma properties. At Voyager 1 (V1), the beams are often coincident with crossings of the heliospheric current sheet (HCS). The V1 intensity peaks occur when the HCS is crossed from negative...
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