{"title":"Fermi/LAT、CORONAS-F/AVS-F和PHOTON/NATALYA-2M数据的GRB高能伽马射线性质","authors":"I. V. Arkhangelskaja, A. I. Arkhangelskiy","doi":"10.1134/S1062873825711389","DOIUrl":null,"url":null,"abstract":"<p>The AVS-F catalog contains several dozen γ-ray bursts (GRBs), the NATALYA-2M consists of 6 bursts (maximum photon energies ∼150 and ∼60 MeV, respectively), and the Fermi/LAT catalog contains more than 200 bursts in the range <i>E</i> > 100 MeV. Different behavior of the prompt emission time profiles is observed in the high and low energy ranges during some events with a high-energy spectral component. When using parameter <i>R</i><sub>t</sub> (the ratio of the time of arrival of γ-photons with maximum energy to the duration of a burst), which does not require considering the cosmological length of dilation, the following groups can be distinguished among long bursts: (1) For ∼25% of all GRBs, the duration of high-energy emission is shorter than that of the low-energy range. (2) The opposite situation is observed for the remaining ∼75%, but the maximum energy in γ-rays is detected during (2a) a low-energy prompt emission or (2b) after it is complete. The characteristics of GRBs with γ-rays in the sub-TeV region are similar to types 2a and 2b, since there is no significant correlation between their maximum energies and redshifts.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 6","pages":"922 - 927"},"PeriodicalIF":0.4800,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Properties of GRB High-Energy Gamma Rays from Fermi/LAT, CORONAS-F/AVS-F, and PHOTON/NATALYA-2M Data\",\"authors\":\"I. V. Arkhangelskaja, A. I. Arkhangelskiy\",\"doi\":\"10.1134/S1062873825711389\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The AVS-F catalog contains several dozen γ-ray bursts (GRBs), the NATALYA-2M consists of 6 bursts (maximum photon energies ∼150 and ∼60 MeV, respectively), and the Fermi/LAT catalog contains more than 200 bursts in the range <i>E</i> > 100 MeV. Different behavior of the prompt emission time profiles is observed in the high and low energy ranges during some events with a high-energy spectral component. When using parameter <i>R</i><sub>t</sub> (the ratio of the time of arrival of γ-photons with maximum energy to the duration of a burst), which does not require considering the cosmological length of dilation, the following groups can be distinguished among long bursts: (1) For ∼25% of all GRBs, the duration of high-energy emission is shorter than that of the low-energy range. (2) The opposite situation is observed for the remaining ∼75%, but the maximum energy in γ-rays is detected during (2a) a low-energy prompt emission or (2b) after it is complete. The characteristics of GRBs with γ-rays in the sub-TeV region are similar to types 2a and 2b, since there is no significant correlation between their maximum energies and redshifts.</p>\",\"PeriodicalId\":504,\"journal\":{\"name\":\"Bulletin of the Russian Academy of Sciences: Physics\",\"volume\":\"89 6\",\"pages\":\"922 - 927\"},\"PeriodicalIF\":0.4800,\"publicationDate\":\"2025-07-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of the Russian Academy of Sciences: Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1062873825711389\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Physics and Astronomy\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of the Russian Academy of Sciences: Physics","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1062873825711389","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Physics and Astronomy","Score":null,"Total":0}
Properties of GRB High-Energy Gamma Rays from Fermi/LAT, CORONAS-F/AVS-F, and PHOTON/NATALYA-2M Data
The AVS-F catalog contains several dozen γ-ray bursts (GRBs), the NATALYA-2M consists of 6 bursts (maximum photon energies ∼150 and ∼60 MeV, respectively), and the Fermi/LAT catalog contains more than 200 bursts in the range E > 100 MeV. Different behavior of the prompt emission time profiles is observed in the high and low energy ranges during some events with a high-energy spectral component. When using parameter Rt (the ratio of the time of arrival of γ-photons with maximum energy to the duration of a burst), which does not require considering the cosmological length of dilation, the following groups can be distinguished among long bursts: (1) For ∼25% of all GRBs, the duration of high-energy emission is shorter than that of the low-energy range. (2) The opposite situation is observed for the remaining ∼75%, but the maximum energy in γ-rays is detected during (2a) a low-energy prompt emission or (2b) after it is complete. The characteristics of GRBs with γ-rays in the sub-TeV region are similar to types 2a and 2b, since there is no significant correlation between their maximum energies and redshifts.
期刊介绍：
Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.
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