Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)最新文献_第3页

The Askaryan Radio Array (ARA) 阿斯卡良无线电阵列(ARA)

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-11-10 DOI: 10.22323/1.395.0014

K. Hoffman

引用次数: 0

Rapporteur Talk: Gamma Ray Direct 报告员谈话:伽马射线直接

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-11-02 DOI: 10.22323/1.395.0045

R. Caputo

引用次数: 2

The High Energy cosmic-Radiation Detection (HERD) facility on board the Chinese Space Station: hunting for high-energy cosmic rays 中国空间站上的高能宇宙辐射探测(HERD)设施:寻找高能宇宙射线

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-10-28 DOI: 10.22323/1.395.0026

F. Gargano

引用次数: 14

CTA sensitivity for probing cosmology and fundamental physics with gamma rays 用伽马射线探测宇宙学和基础物理的CTA灵敏度

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-10-15 DOI: 10.22323/1.395.0894

I. Vovk, J. Biteau, H. Martínez-Huerta, M. Meyer, S. Pita

引用次数: 3

CTA – the World’s largest ground-based gamma-ray observatory CTA -世界上最大的地面伽玛射线天文台

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-10-12 DOI: 10.22323/1.395.0005

R. Zanin, H. Abdalla, H. Abe, S. Abe, A. Abusleme, F. Acero, A. Acharyya, V. Acin Portella, K. Ackley, R. Adam, C. Adams, S. S. Adhikari, I. Aguado Ruesga, I. Agudo, R. Aguilera, A. Aguirre Santaella, F. Aharonian, A. Alberdi, R. Alfaro, J. Alfaro, C. Alispach, R. Aloisio, R. Alves Batista, J. Amans, L. Amati, E. Amato, L. Ambrogi, G. Ambrosi, M. Ambrosio, R. Ammendola, J. Anderson, M. Anduze, E. Anguner, L. Antonelli, V. Antonuccio, P. Antoranz, R. Anutarawiramkul, J. Aragunde Gutierrez, C. Aramo, A. Araudo, M. Araya, A. Arbet Engels, C. Arcaro, V. Arendt, C. Armand, T. Armstrong, F. Arqueros, L. Arrabito, B. Arsioli, M. Artero, K. Asano, Y. Ascasibar, J. Aschersleben, M. Ashley, P. Attinà, P. Aubert, C. B. Singh, D. Baack, A. Babić, Michael Backes, V. Baena, S. Bajtlik, A. Baktash, C. Balazs, M. Balbo, O. Ballester, J. Ballet, B. Balmaverde, A. Bamba, R. Bandiera, A. Baquero Larriva, P. Barai, C. Barbier, V. Barbosa Martins, M. Barceló, M. Barkov, M. Barnard, L. Baroncelli, U. Barres de Almeida, J. Barr

引用次数: 9

The effects of the GMF on the transition from Galactic to extragalactic cosmic rays GMF对从银河系到河外宇宙射线的转变的影响

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-10-12 DOI: 10.22323/1.395.0004

A. Kääpä, K. Kampert, E. Mayotte

{"title":"The effects of the GMF on the transition from Galactic to extragalactic cosmic rays","authors":"A. Kääpä, K. Kampert, E. Mayotte","doi":"10.22323/1.395.0004","DOIUrl":"https://doi.org/10.22323/1.395.0004","url":null,"abstract":"Understanding the nature of the transition from Galactic to extragalactic cosmic rays (GCRs and EGCRs) has become especially challenging in light of recent spectral and composition data. Galactic contributions appear to be disfavoured at energies beyond the “second knee” where the composition becomes lighter. At the same time, a dominant EGCR contribution at the “2nd knee” appears unlikely. As a result, the measured flux in the transition region cannot easily be accounted for. With the model-dependence of proposed extensions to both the Galactic and extragalactic contributions, a deeper understanding of CR propagation, particularlywithin theGalacticmagnetic field (GMF), is in order. This is because propagation in this energy range shifts from diffusive to ballistic, which is expected to lead to a number of observable effects on CRs. Using CRPropa3, we study these effects for rigidities between 1016 and 1020 V. We identify various features at rigidities where the gyroradius is comparable to typical length scales of the Galaxy, suggesting causes related to changes in the propagation regime. We further quantify general modifications in the spectrum, composition and arrival direction of GCRs and EGCRs. We find that the GMF naturally induces a flux suppression of GCRs towards higher rigidities due to their increased leakage from the Galaxy. This, in consequence, would lead to an increase in the mean mass of GCR primaries up to energies around the “ankle” in the cosmic ray spectrum. It is also shown that the distribution of GCR arrival directions would be correlated with the Galactic plane for rigidities above 1017 V if sources are distributed evenly within the plane. EGCRs experience no flux modification in the GMF if injected isotropically. Injection of pure dipoles, as well as single source scenarios indicate that the GMF isotropises injected anisotropies below 1018 V, but can still cause flux modifications which depend on the direction of the anisotropy.","PeriodicalId":20473,"journal":{"name":"Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91426612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Rapporteur Talk: Cosmic Ray Direct 报告人谈话:宇宙射线直接

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-10-07 DOI: 10.22323/1.395.0044

P. Mertsch

引用次数: 3

Population Studies of Fermi LAT sources 费米LAT源的种群研究

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-10-01 DOI: 10.22323/1.395.0662

E. Orlando, Melissa Rasmussen, A. Strong

引用次数: 0

Interstellar cosmic-ray spectra (1) just outside the heliosphere and (2) in the local medium: are they the same? (1)日球层外的星际宇宙射线光谱和(2)本地介质中的星际宇宙射线光谱:它们是一样的吗?

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-09-30 DOI: 10.22323/1.395.0141

E. Orlando

{"title":"Interstellar cosmic-ray spectra (1) just outside the heliosphere and (2) in the local medium: are they the same?","authors":"E. Orlando","doi":"10.22323/1.395.0141","DOIUrl":"https://doi.org/10.22323/1.395.0141","url":null,"abstract":"Interstellar cosmic ray (CR) spectra just outside the heliosphere are accessible thanks to direct measurements of CR, with uncertainties given by the solar modulation. Interstellar CR spectra in the local medium (i.e. within ~1 kpc around the Sun) are indirectly accessible thanks to observations of interstellar emissions in radio/microwaves and in gamma rays produced by CR interactions with the interstellar medium and the Galactic magnetic field. Observations of these interstellar emissions are an invaluable tool for understanding densities and spectra of CR in different places of our Galaxy. The derivation of these spectra depends on model assumptions. Until recently it was believed that CR as directly measured were resembling CR throughout the Galaxy, after accounting for solar modulation and propagation effects. However, present precise data are discordant and are posing significant challenges. Whether interstellar CR spectra just outside the heliosphere and in the local medium are the same is a question that has recently opened again. We present here our effort in answering this question and our recent results.","PeriodicalId":20473,"journal":{"name":"Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87989339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Rapporteur Talk: Gamma Ray Indirect 报告人谈话:伽马射线间接

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-09-29 DOI: 10.22323/1.395.0046

A. Mitchell

引用次数: 0