Rigidity dependence of Forbush decreases in the energy region exceeding the sensitivity of neutron monitors
| Autor: | D. Maletic, Mihailo Savić, R. Banjanac, Dejan Joković, Vladimir Udovičić, Aleksandar Dragić, N. Veselinović |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
Atmospheric Science 010504 meteorology & atmospheric sciences Astrophysics::High Energy Astrophysical Phenomena Detector Aerospace Engineering Astronomy and Astrophysics Cosmic ray Space weather Solar cycle 24 01 natural sciences Computational physics Geophysics Rigidity (electromagnetism) 13. Climate action Space and Planetary Science Modulation Physics::Space Physics 0103 physical sciences General Earth and Planetary Sciences Neutron Forbush decrease 010303 astronomy & astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Advances in Space Research. 63:1483-1489 |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/j.asr.2018.09.034 |
| Popis: | Applicability of our present setup for solar modulation studies in a shallow underground laboratory is tested on four prominent examples of Forbush decrease during solar cycle 24. Forbush decreases are of interest in space weather application and study of energy-dependent solar modulation, and they have been studied extensively. The characteristics of these events, as recorded by various neutron monitors and our detectors, were compared, and rigidity spectrum was found. Linear regression was performed to find power indices that correspond to each event. As expected, a steeper spectrum during more intense extreme solar events with strong X-flares shows a greater modulation of galactic cosmic rays. Presented comparative analysis illustrates the applicability of our setup for studies of solar modulation in the energy region exceeding the sensitivity of neutron monitors. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect