University of Oulu

Lagoida, I.A., Voronov, S.A., Mikhailov, V.V. et al. Study of Forbush Decrease Recovery Times by the Payload for Antimatter Matter Exploration and Light-Nuclei Astrophysics (PAMELA) Experiment. Sol Phys 298, 9 (2023).

Study of Forbush decrease recovery times by the Payload for Antimatter Matter Exploration and Light-Nuclei Astrophysics (PAMELA) experiment

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Author: Lagoida, I. A.1; Voronov, S. A.1; Mikhailov, V. V.1;
Organizations: 1National Research Nuclear University MEPhI, 115409, Moscow, Russia
2INFN, Sezione di Trieste, 34149, Trieste, Italy
3IFPU, 34014, Trieste, Italy
4University of Naples “Federico II”, Department of Physics, 80126, Naples, Italy
5INFN, Sezione di Naples, 80126, Naples, Italy
6Lebedev Physical Institute, 119991, Moscow, Russia
7INFN, Sezione di Bari, 70126, Bari, Italy
8University of Bari, Department of Physics, 70126, Bari, Italy
9Ioffe Physical Technical Institute, 194021, St. Petersburg, Russia
10INFN, Sezione di Rome “Tor Vergata”, 00133, Rome, Italy
11RIKEN, Advanced Science Institute, Wako-shi, Saitama, Japan
12Space Physics and Astronomy Research Unit and Sodankylä Geophysical Observatory, University of Oulu, Finland
13University of Rome “Tor Vergata”, Department of Physics, 00133, Rome, Italy
14INFN, Laboratori Nazionali di Frascati, Via Enrico Fermi 40, 00044, Frascati, Italy
15IFAC, 50019, Sesto Fiorentino, Florence, Italy
16University of Udine, Department of Mathematics and Informatics, 33100, Udine, Italy
17INFN, Sezione di Florence, 50019, Sesto Fiorentino, Florence, Italy
Format: article
Version: accepted version
Access: embargoed
Persistent link:
Language: English
Published: Springer Nature, 2023
Publish Date: 2024-01-13


A Forbush decrease (FD) is a sudden drop of cosmic-ray intensity arising as an effect of coronal mass ejection (CME) propagation in interplanetary space. The different physical properties of each CME cause variability in the FDs observed by scientific instruments. A comprehensive study of both phenomena is required to properly understand the processes involved in FDs. Most of the current studies in this field use experimental data obtained by ground-based apparatus that measure the flux of cosmic rays via their interaction with Earth’s atmosphere. Direct measurements in space of FDs are rather rare. In this work, we present the results obtained by the spacecraft-borne experiment Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics (PAMELA). The experiment took data from 15 June 2006 until January 2016. A series of FDs during the period 2006 – 2013 were studied. Only significant events with amplitude ≥ 10% for the proton flux R=1.1 – 2.9 GV were taken into account. The dependencies of the recovery times on the particle rigidity were obtained for FD events generated by halo-type CMEs.

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Series: Solar physics
ISSN: 0038-0938
ISSN-E: 1573-093X
ISSN-L: 0038-0938
Volume: 298
Issue: 1
Article number: 9
DOI: 10.1007/s11207-022-02097-z
Type of Publication: A1 Journal article – refereed
Field of Science: 115 Astronomy and space science
Funding: Event selection and data analysis have been performed with the support of the Russian Science Foundation, project no. 20-72-10170. Theoretical treatment of obtained results was supported by the Ministry of Science and Higher Education of the Russian Federation, project “Fundamental problems of cosmic rays and dark matter”, no. 0723-2020-0040.
Copyright information: © The Author(s), under exclusive licence to Springer Nature B.V. 2023. This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: