Composition Sensitivity for the Cosmic Ray Anisotropy with SWGO

被引：0

作者：

Taylor, Andrew M. ^{[1
]}

Giacinti, Gwenael ^{[2
]}

Desiati, Paolo ^{[3
]}

Velez, Juan Carlos Diaz ^{[3
]}

Chiavassa, Andrea ^{[4
]}

Di Sciascio, Guiseppe ^{[5
]}

Velazquez, Juan Carlo Arteaga ^{[6
]}

Kunwar, Samridha ^{[2
]}

机构：

[1] DESY, Platanenallee 6, D-15738 Zeuthen, Germany

[2] MPIK, Saupfercheckweg 1, D-69117 Heidelberg, Germany

[3] Univ Wisconsin Madison, WIPAC, 222 W Washington Ave, Madison, WI 53703 USA

[4] Univ Turin, Dipartimento Fis, Turin, Italy

[5] Sez Roma Tor Vergata, Ist Nazl Fis Nucl, Via Ric Sci 1, I-00133 Rome, Italy

[6] Univ Michoacana San Nicol Hidalgo, Inst Phys & Math, Morelia, Michoacan, Mexico

来源：

37TH INTERNATIONAL COSMIC RAY CONFERENCE, ICRC2021 | 2022年

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A number of cosmic-ray observatories have measured a change in both phase and amplitude of the dipole component in the distribution of cosmic-ray arrival directions above a primary energy of 100 TeV. We focus on probing the cosmic-ray dipole and multipole evolution in the energy region of mutli TeV to beyond PeV with a future large-area gamma-ray observatory, such as the Southern Wide-field Gamma-ray Observatory (SWGO). The ability to discriminate between different mass groups is essential to understand the origin of this evolution. Through a consideration of the energy and mass resolution for cosmic-ray detection by such an observatory, we estimate its separation power for decomposing the full-particle anisotropy into mass groups. In particular, we explore the feasibility of probing the dipole evolution with rigidity with SWGO. In this way, we demonstrate the great potential that this instrument offers for providing a deeper understanding of the origin of the cosmic-ray anisotropy.

引用

页数：5

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