On the controlled chaos of S-iteration according to Lyapunov exponent and certain control mechanisms in discrete dynamical systems
PUNJAB UNIVERSITY JOURNAL OF MATHEMATICS, cilt.55, ss.253-267, 2023 (ESCI, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 55
- Basım Tarihi: 2023
- Doi Numarası: 10.52280/pujm.2023.55(7-8)01
- Dergi Adı: PUNJAB UNIVERSITY JOURNAL OF MATHEMATICS
- Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus
- Sayfa Sayıları: ss.253-267
- Yıldız Teknik Üniversitesi Adresli: Evet
Özet
We review the main observational and theoretical facts about acceleration of Galactic cosmic rays in supernova remnants, discussing the arguments in favor and against a connection between cosmic rays and supernova remnants, the so-called supernova remnant paradigm for the origin of Galactic cosmic rays. Recent developments in the modeling of the mechanism of diffusive shock acceleration are discussed, with emphasis on the role of 1) magnetic field amplification, 2) acceleration of nuclei heavier than hydrogen, 3) presence of neutrals in the circumstellar environment. The status of the supernova-cosmic ray connection in the time of Fermi-LAT and Cherenkov telescopes is also discussed.