On the Influence of Magnetic Turbulence on the Spectra of Gamma-Ray Burst Afterglows
- Authors: Uvarov Y.A.1, Bykov A.M.1
-
Affiliations:
- Ioffe Physical–Technical Institute, Russian Academy of Sciences, St. Petersburg, 194021 Russia
- Issue: Vol 49, No 10 (2023)
- Pages: 686-692
- Section: Articles
- URL: https://journals.rcsi.science/0320-0108/article/view/232201
- DOI: https://doi.org/10.31857/S0320010823100078
- EDN: https://elibrary.ru/MTTYKQ
- ID: 232201
Cite item
Abstract
Gamma-ray bursts (GRBs) are the phenomena of rapid energy release of enormous power associated with the collapse ormerging of stars. As a result of internal processes, populations of nonthermal accelerated particles radiating in a wide energy range are formed in them. A number of observations have shown that photons with energies up to tens of TeV are detected from some GRBs. However, due to the great energy losses of radiating particles, the explanation of this high-energy radiation in terms of standard radiation mechanisms runs into great difficulties. In this paper, based on the model of adiabatic expansion for the GRB afterglow phase, we investigate the influence of magnetic inhomogeneities on the spectra
within the electron and proton synchrotron radiation mechanism by taking into account the Compton scattering of synchrotron photons. We show that the magnetic inhomogeneity effect can increase the
maximum energies of the synchrotron radiation from electrons and protons severalfold without affecting the maximum energies of the Compton photons being produced in the Klein–Nishina regime.
About the authors
Yu. A. Uvarov
Ioffe Physical–Technical Institute, Russian Academy of Sciences, St. Petersburg, 194021 Russia
Email: uv@astro.ioffe.ru
Россия, Санкт-Петербург
A. M. Bykov
Ioffe Physical–Technical Institute, Russian Academy of Sciences, St. Petersburg, 194021 Russia
Author for correspondence.
Email: uv@astro.ioffe.ru
Россия, Санкт-Петербург
References
- Агаронян и др. (F. Aharonian, F. Ait Benkhali, J. Aschersleben, H. Ashkar, M. Backes, A. Baktash, V. Barbosa Martins, R. Batzofin, et al.), Astrophys. J. 946, L27 (2023).
- Акерман и др. (M. Ackermann, K. Asano, W.B. Atwood, M. Axelsson, L. Baldini, J. Ballet, G. Barbiellini, M.G. Baring, et al.), Astrophys. J. 716, 1178 (2010).
- Аптекарь Р.Л., Быков А.М., Голенецкий С.В., Фредерикс Д.Д., Свинкин Д.С., Уланов М.В., Цветкова А.Е., Козлова А.В. и др., Успехи физ. наук 189 785 (2019) [R.L. Aptekar, A.M. Bykov, S.V. Golenetskii, D.D. Frederiks, D.S. Svinkin, M.V. Ulanov, A.E. Tsvetkova, A.V. Kozlova, et al., Physics Uspekhi 62, 739 (2019)].
- Бегу и др. (D. Bégué, F. Samuelsson, and A. Pe’er), Astrophys. J. 937, 101 (2022).
- Бландфорд, МакКи (R.D. Blandford and C.F. McKee), Phys. Fluid. 19, 1130 (1976).
- Блюментал, Голд (G.R. Blumenthal and R.J. Gould), Rev. Modern Phys. 42, 237 (1970).
- Быков и др. (A.M. Bykov, G.G. Pavlov, A.V. Artemyev, and Yu.A. Uvarov), MNRAS 421, L67 (2012a).
- Быков и др. (A.M. Bykov, N. Gehrels, H. Krawczynski, M. Lemoine, G. Pelletier, and M. Pohl,), Space Sci. Rev. 173, 309 (2012б).
- Гизелини и др. (G. Ghisellini, G. Ghirlanda, G. Oganesyan, S. Ascenzi, L. Nava, A. Celotti, O.S. Salafia, M.E. Ravasio, et al.), Astron. Astrophys. 636, A82 (2020).
- Гильберт и др. (P.W. Guilbert, A.C. Fabian, and M.J. Rees), MNRAS 205, 593 (1983).
- Гинзбург, Сыроватский (V.L. Ginzburg and S.I. Syrovatskii), Ann. Rev. Astron. Astrophys. 3, 297 (1965).
- Гранот и др. (J. Granot, T. Piran, and R. Sari), Astrophys. J. 513, 679 (1999a).
- Гранот и др. (J. Granot, T. Piran, and R. Sari), Astrophys. J. 527, 236 (1999b).
- Деришев Е.В., Известия высших учебных заведений. Радиофизика 63(11) 958 (2020) [E.V. Derishev, Radiophysics and Quantum Electronics 63, 862 (2021)].
- Жанг и др. (B.T. Zhang, K. Murase, K. Ioka, D. Song, C. Yuan, and Péter Mészáros), Astrophys. J. 947, L14 (2023).
- Исравель и др. (H. Isravel, A. Pe’er, and D. Bégué), Astrophys. J. 955, 70 (2023).
- Клебесадел и др. (R.W. Klebesadel, I.B. Strong, and R.A. Olson), Astrophys. J. 182, L85 (1973).
- Коста и др. (E. Costa, F. Frontera, J. Heise, M. Feroci, J. in’t Zand, F. Fiore, M.N. Cinti, D. Dal Fiume, et al.), Nature 387, 783 (1997).
- Кулкарни и др. (S.R. Kulkarni, S.G. Djorgovski, A.N. Ramaprakash, R. Goodrich, J.S. Bloom, K.L. Adelberger, T. Kundic, L. Lubin, et al.), Nature 393, 35 (1998).
- Мазец Е.П., Голенецкий С.В., Ильинский В.Н., Гурьян Ю.А., Харитонова Т.В., Письма в ЖЭТФ 20, 77 (1974) [E.P. Mazets, S.V. Golenetskii, V.N. Ilinskii, Iu.A. Gurian, and T.V. Kharitonova, ZhETF Pisma Redaktsiiu 20, 77 (1974)].
- Мецгер и др. (M.R. Metzger, S.G. Djorgovski, S.R. Kulkarni, C.C. Steidel, K.L. Adelberger, D.A. Frail, E. Costa, and F. Frontera), Nature 387, 878 (1997).
- Миган и др. (C.A. Meegan, G.J. Fishman, R.B. Wilson, W.S. Paciesas, G.N. Pendleton, J.M. Horack, M.N. Brock, and C. Kouveliotou), Nature 355, 143 (1992).
- Микели, Нава. (D. Miceli and L. Nava), Galaxies 10, 66 (2022).
- Нода, Парсонс (K. Noda and R.D. Parsons), Galaxies 10, 7 (2022).
- Оганесян и др. (G. Oganesyan, L. Nava, G. Ghirlanda, and A. Celotti), Astrophys. J. 846, 137 (2017).
- Парадис и др. (J. van Paradijs, P.J. Groot, T. Galama, C. Kouveliotou, R.G. Strom, J. Telting, R.G.M. Rutten, G.J. Fishman, et al.), Nature 386, 686 (1997).
- Сари (R. Sari), Astrophys. J. 489, L37 (1997).
- Сари, Есин (R. Sari and A.A. Esin), Astrophys. J. 548, 787 (2001).
- Флору и др. (I. Florou, M. Petropoulou, and A. Mastichiadis), MNRAS 505, 1367 (2021).
- Фрэйл и др. (D.A. Frail, S.R. Kulkarni, L. Nicastro, M. Feroci, and G.B. Taylor), Nature 389, 261 (1997).
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