Bulletin of the American Physical Society
APS April Meeting 2018
Volume 63, Number 4
Saturday–Tuesday, April 14–17, 2018; Columbus, Ohio
Session X16: Cosmic Ray SIG MinisymposiumMini-Symposium
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Sponsoring Units: DAP Chair: Jim Beatty, Ohio State University Room: B232-233 |
Tuesday, April 17, 2018 10:45AM - 11:21AM |
X16.00001: Recent Observations of Galactic Cosmic Rays from Voyagers 1 and 2 Invited Speaker: A.C. Cummings The twin Voyager spacecraft were launched in 1977 and are still returning data after 40 years in space. Voyager 1 has crossed into the local interstellar medium (LISM) and is returning measurements of the low-energy parts of the galactic cosmic ray (GCR) spectra that are free of solar modulation effects for the first time. Voyager 2 is still in the inner heliosheath but appears to be rapidly approaching the heliopause. We will report on recent observations from the two spacecraft, including: the gradient of GCRs in the LISM; the GCR energy spectra in the LISM of elements from H through Ni, as well as some isotopes and electrons; and GCR electron observations from Voyager 2 that yield rough estimates of when it might cross the heliopause. [Preview Abstract] |
Tuesday, April 17, 2018 11:21AM - 12:33PM |
X16.00002: Open Business and Discussion Jim Beatty The CR SIG will address open business topics and discuss them with the community. Please refer to the Physics of the Cosmos page for additional details (https://pcos.gsfc.nasa.gov/physpag/meetings/APS_2018/APS2018-agenda.php#crsig) [Preview Abstract] |
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