Grimani, C. and Benella, S. and Fabi, M. and Finetti, N. and Laurenza, M. and Telloni, D. and Villani, M. (2019) Galactic cosmic-ray flux short-term variations and associated interplanetary structures with LISA Pathfinder. Il nuovo cimento C, 42 (1). pp. 1-6. ISSN 1826-9885
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Abstract
The European Space Agency LISA Pathfinder (LPF) mission orbited around the Sun-Earth first Lagrangian point L1 between January 2016 and July 2017. A particle detector aboard LPF allowed for galactic cosmic-ray (GCR) integral flux measurements above 70 MeV n−1 between 2016 February 18 and 2017 July 3 during the descending phase of the present solar cycle N. 24, which is characterized by a positive polarity period. The statistical uncertainty on hourly-averaged GCR countings was of 1%. The characteristics of recurrent and non-recurrent GCR flux short-term variations observed with LPF are reported here. In particular, it is focused on GCR flux variation profiles and their association with the passage of large-scale interplanetary structures. Forbush decrease observations and geomagnetic storm occurrence during LPF are also briefly discussed.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 27 Nov 2020 14:20 |
| Last Modified: | 27 Nov 2020 14:20 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/20409 |
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