The Origin of Galactic Cosmic Rays as Revealed by their Composition

被引：0

作者：

Tatischeff, Vincent ^{[1
]}

Raymond, John C. ^{[2
]}

Duprat, Jean ^{[3
]}

Gabici, Stefano ^{[4
]}

Recchia, Sarah ^{[1
,5
,6
]}

机构：

[1] Univ Paris Saclay, CNRS, IN2P3, IJCLab, F-91405 Orsay, France

[2] Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[3] Sorbonne Univ, MNHN, CNRS, Inst Mineral Phys Mat & Cosmochim, F-75005 Paris, France

[4] Univ Paris, CNRS, Astroparticule & Cosmol, F-75006 Paris, France

[5] Univ Torino, Dipartimento Fis, Via Giuria 1, I-10122 Turin, Italy

[6] INFN, Sez Torino, Via Giuria 1, I-10122 Turin, Italy

来源：

37TH INTERNATIONAL COSMIC RAY CONFERENCE, ICRC2021 | 2022年

关键词：

SUPERNOVA-REMNANTS; SUPERBUBBLE ORIGIN; NE-22; ACCELERATION; SHOCKS; STARS;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Galactic cosmic-rays (GCRs) are thought to be accelerated in strong shocks induced by massive star winds and supernova explosions sweeping across the interstellar medium. But the phase of the interstellar medium from which the CRs are extracted has remained elusive up to now. We have studied in detail the GCR source composition deduced from recent measurements by the AMS-02, Voyager 1 and SuperTIGER experiments to obtain information on the composition, ionisation state and dust content of the GCR source reservoirs. The results of this data analysis suggest that the GCRs are mainly accelerated in superbubbles energised by the activity of massive star winds and supernova explosions. The resulting model explains well the measured abundances of all primary and mostly primary CRs from H to Zr, including the overabundance of Ne-22.

引用

页数：8

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