A study of Forbush Decreases effects with DAMPE experiment

Li, Wenhao; Alemanno, Francesco; Altomare, Corrado; An, Q.; Azzarello, P.; Barbato, Felicia; Bernardini, P.; Bi, Xiao Jun; Cagnoli, Irene; Cai, Ming Sheng; Casilli, Elisabetta; Catanzani, Enrico; Chang, Jin; Chen, Deng Yi; Chen, Jun Ling; Chen, Zhan Fang; Chen, Zi Xuan; Coppin, Paul; Cui, Ming-Yang; Cui, Tian Shu; Cui, Yu Xin; Mitri, I. De; Palma, F. de; Giovanni, A. Di; Santo, Margherita Di; Ding, Qi; Dong, Tie Kuang; Dong, Zhen; Donvito, Giacinto; Droz, David; Duan, Jing; Duan, Kai Kai; Fan, Rui; Fan, Yi Zhong; Fang, Fang; Fang, Kun; Feng, Chang; Liu, Feng; Alonso, M. Fernández; Frieden, Jennifer Maria; Fusco, P.; Gao, Min; Gargano, F.; Ghose, Essna; Gong, Ke; Gong, Yuhang; Guo, Dong; Guo, Jian; Han, Shuang Xue; Hu, Yi Ming; Huang, G. S.; Huang, Xiao Yuan; Huang, Yuanyuan; Ionica, M.; Jiang, Lixue; Jiang, Wei; Y., Jiang,; Kong, Jie; Kotenko, Andrii; Kyratzis, Dimitrios; Lei, Shi Jun; Li, Wei Liang; Li, Wen Hao; Li, Xiang; Li, Xian Qiang; Liang, Yao Ming; Liu, Cheng Ming; Líu, Hao; Liu, Jie; Liu, Shu Bin; Liu, Yang; Loparco, Francesco; Luo, Chi‐Cheng; Ma, Miao; Xiong, Peng; Ma, Tao; Xiao, Yanhong; Marsella, G.; Mazziotta, M. N.; Mo, Dan; Niu, Xiao Yang; Xu, Pan; Parenti, A.; Peng, Wen Xi; Xiao, Peng; Perrina, C.; Putti-Garcia, Enzo; Qiao, Rui; Rao, Jia Ning; Ruina, Arshia; Shangguan, Zhouping; Shen, Wei; Shen, Zhao Qiang; Shen, Zhong Tao; Silveri, Leandro; Song, Jing Xing; Stolpovskiy, M.; Su, Hong; Su, Meng; Sun, Hao; Sun, Zhi Yu; Surdo, A.; Teng, Xue Jian; Tykhonov, A.; Wang, Jin Zhou; Wang, Lian Guo; Wang, Shen; Wang, Xiao Lian; Wang, Yan Fang; Wang, Ying; Wang, Yuan Zhu; Wei, Da Ming; Wei, Jia Ju; Wei, Yi Feng; Wu, Di; Wu, Jian; Wu, Li Bo; Wu, Sha Sha; Wu, X.Z.; Xia, Zi Qing; Xu, En Heng; Xu, Hai Tao; Xu, Jing; Xu, Zhi Hui; Xu, Zi Zong; Xu, Zun Lei; Xue, Guo Feng; Yang, Hai Bo; Yang, Peng; Yang, Ya Qing; Yao, Hui; Yu, Yu Hong; Yuan, Guan Wen; Yuan, Qiang; Yue, Chuan; Zang, Jing Jing; Zhang, Sheng Xia; Zhang, Wen Zhang; Zhang, Yan; Zhang, Ya Peng; Zhang, Yi; Zhang, Yong Jie; Zhang, Yong Qiang; Zhang, Yun Long; Zhang, Zhe; Zhang, Zhi Yong; Zhao, Cong; Zhao, Hong; Zhao, Xun Feng; Zhou, Chang Yi; Zhu, Yan

doi:10.22323/1.444.1311

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…In 2021, an article based on one FD event detected by DAMPE in September 2017 was published [48]. Updated (preliminary) results based on 3 FD events (two in 2017 and one in 2021) were presented at this conference [49]. They show that the recovery time of FDs may have different relations with energy: two of them exhibit a correlation pattern and one does not (Figure 12 right).…”

Section: Heliophysics: Forbush Decreasementioning

confidence: 99%

DArk Matter Particle Explorer: 7 years in Space

Tykhonov,

Alemanno,

Altomare

et al. 2023

Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)

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The DArk Matter Particle Explorer (DAMPE) is a pioneering calorimetric experiment that has been successfully operating in space since December 2015, designed to detect cosmic rays up to unprecedentedly high energies thanks to the fine-grained thick BGO calorimeter and relatively large geometric factor. Among the scientific goals of DAMPE are the precise measurements of cosmic-ray electron plus positron spectrum, including the detection of possible indirect dark matter signatures, spectral measurements of primary and secondary cosmic-ray species, and gamma-ray physics. For electrons and gamma rays, it covers an energy range from GeV to about 10 TeV, with an outstanding energy resolution close to 1%. Proton and ion cosmic rays can be measured up to hundreds of TeV in kinetic energy. In this contribution, we first give an overview of the DAMPE mission and its on-orbit operation status. Then, we highlight the key scientific results, including the measurements of the BCNO group, boron-to-carbon ratio, proton plus helium spectrum beyond 100 TeV, gamma-ray physics and more. Finally, the ongoing efforts for lepton, light, and heavy hadron cosmic rays are briefly discussed along with the new data analysis techniques.

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Section: Heliophysics: Forbush Decreasementioning

confidence: 99%

DArk Matter Particle Explorer: 7 years in Space

Tykhonov,

Alemanno,

Altomare

et al. 2023

Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)

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“…The Earth is bombarded by cosmic rays, i.e., relativistic charged particles that originate from extraterrestrial sources [1][2][3][4]. Specifically, galactic cosmic rays are composed of protons, α-particles (7-10%), and heavier nuclei (1%) [5][6][7][8], come from unknown sources outside the solar system [9], and the solar activity determines their flux in the heliosphere [10]. Furthermore, solar cosmic rays are related to solar flares [11,12] and coronal mass ejections [13] and mainly consist of protons (>89%), α-particles (10%), and heavier nuclei (<1%).…”

Section: Introductionmentioning

confidence: 99%

Precursory Signs of Large Forbush Decreases in Relation to Cosmic Rays Equatorial Anisotropy Variation

Papailiou,

Abunina,

Mavromichalaki

et al. 2024

Atmosphere

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Forbush decreases are usually characterized by increased values of cosmic ray anisotropy. The precursory signs, i.e., pre-increases and especially pre-decreases of the cosmic ray intensity, are highly anisotropic phenomena that ordinarily forewarn of such events. Two Cosmic Ray Groups from the National and Kapodistrian University of Athens (NKUA) and the Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radiowave Propagation of the Russian Academy of Sciences (IZMIRAN) have been investigating the existence of precursory signs preceding Forbush decreases in relation to different solar phenomena, interplanetary parameters, and geomagnetic conditions. In this study, large Forbush decreases (magnitude > 5%) accompanied by geomagnetic storms (i.e., geomagnetic index Dst < −100 nT and 5 ≤ Kp-index ≤ 9) and characterized by an equatorial anisotropy 1 h before the onset of the event (Axyb, %) less than 0.8% were examined regarding precursors. In total, 50 events with the aforementioned features were selected and analyzed from the IZMIRAN’s Forbush Effects and Interplanetary Disturbances database concerning the time period from 1969 until 2023. The Ring of Stations method, which depicts the cosmic ray variations for various asymptotic longitudes in relation to time, was applied on each event. The results revealed that clear signs of pre-decreases were not present for the majority of the events. Since particularly strong events were considered, most of them still showed some precursory signs, albeit mainly weak. Despite this, the value of Axyb = 0.8% proves to be a good threshold for the manual selection of FDs with well-expressed precursors.

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A study of Forbush Decreases effects with DAMPE experiment

Cited by 2 publications

References 14 publications

DArk Matter Particle Explorer: 7 years in Space

DArk Matter Particle Explorer: 7 years in Space

Precursory Signs of Large Forbush Decreases in Relation to Cosmic Rays Equatorial Anisotropy Variation

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