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

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Rapporteur Talk: GA 报告员谈话：大会
Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023) Pub Date : 2023-12-03 DOI: 10.22323/1.444.0032
Rubén López Coto
{"title":"Rapporteur Talk: GA","authors":"Rubén López Coto","doi":"10.22323/1.444.0032","DOIUrl":"https://doi.org/10.22323/1.444.0032","url":null,"abstract":"","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138605575","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: 0
Status of the HERD trigger design HERD 触发器设计现状
Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023) Pub Date : 2023-11-20 DOI: 10.22323/1.444.0126
Qi Wu
{"title":"Status of the HERD trigger design","authors":"Qi Wu","doi":"10.22323/1.444.0126","DOIUrl":"https://doi.org/10.22323/1.444.0126","url":null,"abstract":"The High Energy cosmic-Radiation Detection (HERD) facility has been proposed as one of several space astronomy payloads onboard the China Space Station (CSS). HERD will address several major problems in fundamental physics and astrophysics, including cosmic ray (CR) direct measurements up to PeV energies, dark matter searches, and a gamma-ray survey above 0.1 GeV. HERD consists of five sub-detectors, including a 3D imaging calorimeter (CALO) with two independent readout systems, based on image intensified CMOS (IsCMOS) camera and photodiodes (PD), respectively. The CALO is surrounded by a scintillating fiber tracker (FIT), a plastic scintillator detector (PSD) and a silicon charge detector (SCD). Additionally, a transition radiation detector (TRD) is placed on one of the lateral sides to provide accurate energy calibration. To accomplish the different HERD scientific goals, several trigger strategies have been defined. The baseline trigger relies on the energy deposited in different CALO regions and in the PSD. To enhance HERD science capabilities and calibration qualities, the advanced trigger strategy is designed with the information provided by the CALO PD, FIT and TRD. This will provide an efficient extension of the energy range for specific samples. The baseline and advanced trigger strategy will be presented, together with some optimization work of the calibration events selection in HE trigger channels.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"129 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139258879","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: 0
Using PIC and PIC-MHD to investigate cosmic ray acceleration in mildly relativistic shocks 利用PIC和PIC- mhd研究轻微相对论性激波中的宇宙射线加速
Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023) Pub Date : 2023-08-24 DOI: 10.22323/1.444.0543
A. Bohdan, A. Araudo, A. J. Marle, F. Casse, A. Marcowith
{"title":"Using PIC and PIC-MHD to investigate cosmic ray acceleration in mildly relativistic shocks","authors":"A. Bohdan, A. Araudo, A. J. Marle, F. Casse, A. Marcowith","doi":"10.22323/1.444.0543","DOIUrl":"https://doi.org/10.22323/1.444.0543","url":null,"abstract":"Astrophysical shocks create cosmic rays by accelerating charged particles to relativistic speeds. However, the relative contribution of various types of shocks to the cosmic ray spectrum is still the subject of ongoing debate. Numerical studies have shown that in the non-relativistic regime, oblique shocks are capable of accelerating cosmic rays, depending on the Alfv'enic Mach number of the shock. We now seek to extend this study into the mildly relativistic regime. In this case, dependence of the ion reflection rate on the shock obliquity is different compared to the nonrelativistic regime. Faster relativistic shocks are perpendicular for the majority of shock obliquity angles therefore their ability to initialize efficient DSA is limited. We define the ion injection rate using fully kinetic PIC simulation where we follow the formation of the shock and determine the fraction of ions that gets involved into formation of the shock precursor in the mildly relativistic regime covering a Lorentz factor range from 1 to 3. Then, with this result, we use a combined PIC-MHD method to model the large-scale evolution of the shock with the ion injection recipe dependent on the local shock obliquity. This methodology accounts for the influence of the self-generated or pre-existing upstream turbulence on the shock obliquity which allows study substantially larger and longer simulations compared to classical hybrid techniques.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125784678","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: 0
PICOLON dark matter search project PICOLON暗物质搜索项目
Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023) Pub Date : 2023-08-23 DOI: 10.22323/1.444.1404
K. Fushimi, ". Fushimi", "D. Chernyak", "H. Ejiri", "K. Hata", ". Hazama", ". Iida", ". Ikeda", "K. Imagawa", "K. Inoue", "H. Ito", "T. Kisimoto", "M. Koga", "K. Kotera", "A. Kozlov", "K. Nakamura", "R. Orito", "T. Shima", "Y. Takemoto", ". Umehara", "Y. Urano", "Y. Yamamoto", "K. Yasuda", "S. Yoshida"
{"title":"PICOLON dark matter search project","authors":"K. Fushimi, \". Fushimi\", \"D. Chernyak\", \"H. Ejiri\", \"K. Hata\", \". Hazama\", \". Iida\", \". Ikeda\", \"K. Imagawa\", \"K. Inoue\", \"H. Ito\", \"T. Kisimoto\", \"M. Koga\", \"K. Kotera\", \"A. Kozlov\", \"K. Nakamura\", \"R. Orito\", \"T. Shima\", \"Y. Takemoto\", \". Umehara\", \"Y. Urano\", \"Y. Yamamoto\", \"K. Yasuda\", \"S. Yoshida\"","doi":"10.22323/1.444.1404","DOIUrl":"https://doi.org/10.22323/1.444.1404","url":null,"abstract":"","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127901633","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: 0
GRB221009A and the IceCube neutrino absence : probing a dominant prompt charm signal? GRB221009A和冰立方中微子缺失:探测主导提示魅力信号?
Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023) Pub Date : 2023-08-21 DOI: 10.22323/1.444.1138
D. Fargion, P. S. Lucentini, M. Khlopov
{"title":"GRB221009A and the IceCube neutrino absence : probing a dominant prompt charm signal?","authors":"D. Fargion, P. S. Lucentini, M. Khlopov","doi":"10.22323/1.444.1138","DOIUrl":"https://doi.org/10.22323/1.444.1138","url":null,"abstract":"","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131395215","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: 0
Discovery of the Ultra-High-Energy gamma-ray source LHAASO J2002+3238 spatially associated with SNR G69.7+1.0 超高能伽玛射线源LHAASO J2002+3238的发现，空间相关信噪比为G69.7+1.0
Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023) Pub Date : 2023-08-21 DOI: 10.22323/1.444.0605
B. Hou, Rui-Yu Zhang, Shaoqiang Xi, Song-zhan Chen, H. He, Ziqing Xia
{"title":"Discovery of the Ultra-High-Energy gamma-ray source LHAASO J2002+3238 spatially associated with SNR G69.7+1.0","authors":"B. Hou, Rui-Yu Zhang, Shaoqiang Xi, Song-zhan Chen, H. He, Ziqing Xia","doi":"10.22323/1.444.0605","DOIUrl":"https://doi.org/10.22323/1.444.0605","url":null,"abstract":"The origin of Galactic PeV cosmic rays is still under debate. Shell-type supernova remnants (SNRs) are proposed to be one of the candidate sources of Galactic PeV cosmic rays, but observational evidence is lacking. Here we report LHAASO’s detection on a point source J2002+3238 with a significance of 5.8 sigma above 25 TeV and 6.8 sigma above 100 TeV. The spectrum is consistent with a power-law spectrum with no cutoff. Inside the error region of the source, a shell-type SNR G69.7+1.0 is found locating only 0.07 ◦ away from the best-fit location of the source, suggesting a strong association between the UHE gamma-ray source and the SNR. This provides strong evidence on SNRs as possible PeV accelerators.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130173657","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: 0
UHECR multiplets versus Hot spots clustering in AUGER sky: the forgotten signals UHECR多重态与AUGER天空中的热点群集:被遗忘的信号
Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023) Pub Date : 2023-08-19 DOI: 10.22323/1.444.0395
D. Fargion, P. S. Lucentini, M. Khlopov
{"title":"UHECR multiplets versus Hot spots clustering in AUGER sky: the forgotten signals","authors":"D. Fargion, P. S. Lucentini, M. Khlopov","doi":"10.22323/1.444.0395","DOIUrl":"https://doi.org/10.22323/1.444.0395","url":null,"abstract":"Two main UHECR hotspots have been found in the Auger sky, clustering towards NGC253 and CenA, our nearby AGN sources: their presence is still controversial, as well as the additional AUGER dipole at ten Eev. A first data (2009-2012) sample in Auger was related to three chains of multiplets with energy of tens of EeV, clustered around the more energetic UHECR clusters. These multiplet trails, nearly a dozen of events each, were pointing to the main well-defined directions in the sky: Cen A and NGC 253. These secondaries signals, probably fragments of high-energy UHECR primaries, have been forgotten or neglected. Such additional information, in our opinion, is capable of accurately disentangle and confirm the nature of the UHECR candidate hot spot sources. For different reasons UHECR are imagined mostly located in our nearby (one or few Mpcs) Local Group universe.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116071946","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: 0
Performance of the XL-Calibur flight in July 2022 2022年7月XL-Calibur飞行性能
Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023) Pub Date : 2023-08-18 DOI: 10.22323/1.444.0928
Y. Uchida
{"title":"Performance of the XL-Calibur flight in July 2022","authors":"Y. Uchida","doi":"10.22323/1.444.0928","DOIUrl":"https://doi.org/10.22323/1.444.0928","url":null,"abstract":"X-ray polarimeters for astrophysical use have been enthusiastically developed in recent years. X-ray polarization reveals magnetic field structures and/or geometry structures from celestial objects such as a neutron star and a corona surrounding a black hole. The XL-Calibur is a balloon-borne mission to observe the polarization of hard X-rays, 15–80 keV. This mission equips a Compton scattering polarimeter which is placed at the focal point 12 m away from the hard X-ray telescope. The design of our polarimeter has a capability to detect a few % polarization degrees for a 1 Crab-flux source with observing it for 6 hours each day during a week-long flight. The XL-Calibur was launched in July 2022 and flown for about one week from Esrange Space Center in Sweden to the Canadian Northwest Territories.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127217090","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: 0
The saturation of the Bell instability and its implications for cosmic ray acceleration and transport 贝尔不稳定性的饱和及其对宇宙射线加速和传输的影响
Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023) Pub Date : 2023-08-18 DOI: 10.22323/1.444.0457
D. Caprioli, G. Zacharegkas, C. Haggerty, Siddhartha Gupta, Benedikt Schroer
{"title":"The saturation of the Bell instability and its implications for cosmic ray acceleration and transport","authors":"D. Caprioli, G. Zacharegkas, C. Haggerty, Siddhartha Gupta, Benedikt Schroer","doi":"10.22323/1.444.0457","DOIUrl":"https://doi.org/10.22323/1.444.0457","url":null,"abstract":"The non-resonant (Bell) streaming instability driven by energetic particles is crucial for producing amplified magnetic fields that are key to the acceleration of cosmic rays (CRs) in supernova remnants, around Galactic and extra-galactic CR sources, and for the CR transport. We present a covariant theory for the saturation of the Bell instability, substantiated by self-consistent kinetic simulations, that can be applied to arbitrary CR distributions and discuss its implications in several heliospheric and astrophysical contexts.","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114310673","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: 0
Studies on the performance of LACT based on Monte Carlo simulation 基于蒙特卡罗仿真的LACT性能研究
Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023) Pub Date : 2023-08-18 DOI: 10.22323/1.444.0604
Zhipeng Zhang, Rui Yang, Shoushan Zhang
{"title":"Studies on the performance of LACT based on Monte Carlo simulation","authors":"Zhipeng Zhang, Rui Yang, Shoushan Zhang","doi":"10.22323/1.444.0604","DOIUrl":"https://doi.org/10.22323/1.444.0604","url":null,"abstract":"The Large Array of Imaging Atmospheric Cherenkov Telescopes (LACT) is a next-generation IACT system intended to be constructed at the LHAASO-site. Benefiting from the advanced angular resolution of Cherenkov telescopes, it enables the study of source morphology identified by LHAASO. The current plan involves the establishment of four subclusters, each housing eight telescopes, across the LHAASO-KM2A area. These subclusters will observe distinct sources, thereby providing much more observation time compared to other IACT arrays. Additionally, combining all telescopes into a single large array is possible to enhance the energy threshold and telescope multiplity, ultimately improving angular resolution. By this way, we can maximize the muon detector capabilities. With muon dector, we can achieve an excellent background supreesion, which greatly aids the observation of extended sources. In this article, we present preliminary performance results of the LACT and discuss the advantages of various layout options","PeriodicalId":448458,"journal":{"name":"Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128027750","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: 0
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