TY - JOUR
T1 - NUMERICAL STUDY OF STATISTICAL BEHAVIORS OF GALACTIC COSMIC RAYS INVADING THE HELIOSPHERE
AU - Yoshida, Kotaro
AU - Matsukiyo, Shuichi
AU - Washimi, Haruichi
AU - Hada, Tohru
N1 - Funding Information:
This work was supported by JST SPRING, grant Number JPMJSP2136, and Grant-in-Aid for Scientific Research (C) No. 19K03953 and 22H01287 from JSPS (S.M.).
Publisher Copyright:
© 2022 Jagellonian University. All rights reserved.
PY - 2022
Y1 - 2022
N2 - The statistics of galactic cosmic rays (GCRs) invading the heliosphere are investigated using numerical simulations. First, a time stationary global heliosphere is reproduced using an MHD simulation. Then, motions of a large number of GCR protons with initial Lorentz factor 10 (∼ 10 GeV) and 1000 (∼ 1 TeV), distributed in the interstellar space around the heliosphere, are numerically solved. We map the positional distribution of the GCRs arriving at 50 AU from the Sun. Our results show that the arrival position of GCRs depends on their energies. We discuss the statistical behavior of the arriving GCRs at each energy.
AB - The statistics of galactic cosmic rays (GCRs) invading the heliosphere are investigated using numerical simulations. First, a time stationary global heliosphere is reproduced using an MHD simulation. Then, motions of a large number of GCR protons with initial Lorentz factor 10 (∼ 10 GeV) and 1000 (∼ 1 TeV), distributed in the interstellar space around the heliosphere, are numerically solved. We map the positional distribution of the GCRs arriving at 50 AU from the Sun. Our results show that the arrival position of GCRs depends on their energies. We discuss the statistical behavior of the arriving GCRs at each energy.
UR - http://www.scopus.com/inward/record.url?scp=85141306310&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85141306310&partnerID=8YFLogxK
U2 - 10.5506/APhysPolBSupp.15.3-A20
DO - 10.5506/APhysPolBSupp.15.3-A20
M3 - Article
AN - SCOPUS:85141306310
VL - 15
JO - Acta Physica Polonica B, Proceedings Supplement
JF - Acta Physica Polonica B, Proceedings Supplement
SN - 1899-2358
IS - 3
M1 - 3-A20
ER -