Recent Observational and Theoretical Progress in the Study of Gamma-Ray Bursts

Asaf Pe’er

doi:10.1007/978-3-031-90186-7_21

Recent Observational and Theoretical Progress in the Study of Gamma-Ray Bursts

Asaf Pe’er

Department of Physics - at Bar-Ilan University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

I highlight here some of the recent and most exciting observational and theoretical progress in understanding gamma-ray bursts. Observationally: (1) GRB221009A—the ‘brightest of all times’ (BOAT) GRB with TeV emission and the debate about the origin of this emission—leptonic (inverse Compton) or hadronic (proton-synchrotron); (2) GRB230307A: a long GRB originating from merger, which challenges GRB progenitor models; and (3) Polarization angle change observed, which does not have a convincing theoretical explanation. Theoretically, I discuss (4) The realization that GRB jets are structured, and its observational consequences; (5) Novel ways of explaining a power law spectra by photon energy gain, without the need for particle acceleration; and (6) New ideas about the origin of the “plateau” phase, and the possibility of GRB jet Lorentz factor of a few tens.

Original language	English
Title of host publication	The Relativistic Universe
Subtitle of host publication	From Classical to Quantum - Proceedings of the International Symposium on Recent Developments in Relativistic Astrophysics, ISRA 2023
Editors	Shubhrangshu Ghosh, A.R. Rao
Publisher	Springer Science and Business Media B.V.
Pages	269-282
Number of pages	14
ISBN (Print)	9783031901850
DOIs	https://doi.org/10.1007/978-3-031-90186-7_21
State	Published - 2025
Event	1st International Symposium on Recent Developments in Relativistic Astrophysics, ISRA 2023 - Gangtok, India Duration: 11 Dec 2023 → 13 Dec 2023

Publication series

Name	Astrophysics and Space Science Proceedings
Volume	61
ISSN (Print)	1570-6591
ISSN (Electronic)	1570-6605

Conference

Conference	1st International Symposium on Recent Developments in Relativistic Astrophysics, ISRA 2023
Country/Territory	India
City	Gangtok
Period	11/12/23 → 13/12/23

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.

Access to Document

10.1007/978-3-031-90186-7_21

Cite this

Pe’er, A. (2025). Recent Observational and Theoretical Progress in the Study of Gamma-Ray Bursts. In S. Ghosh, & A. R. Rao (Eds.), The Relativistic Universe: From Classical to Quantum - Proceedings of the International Symposium on Recent Developments in Relativistic Astrophysics, ISRA 2023 (pp. 269-282). (Astrophysics and Space Science Proceedings; Vol. 61). Springer Science and Business Media B.V.. https://doi.org/10.1007/978-3-031-90186-7_21

Pe’er, Asaf. / Recent Observational and Theoretical Progress in the Study of Gamma-Ray Bursts. The Relativistic Universe: From Classical to Quantum - Proceedings of the International Symposium on Recent Developments in Relativistic Astrophysics, ISRA 2023. editor / Shubhrangshu Ghosh ; A.R. Rao. Springer Science and Business Media B.V., 2025. pp. 269-282 (Astrophysics and Space Science Proceedings).

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title = "Recent Observational and Theoretical Progress in the Study of Gamma-Ray Bursts",

abstract = "I highlight here some of the recent and most exciting observational and theoretical progress in understanding gamma-ray bursts. Observationally: (1) GRB221009A{\textemdash}the {\textquoteleft}brightest of all times{\textquoteright} (BOAT) GRB with TeV emission and the debate about the origin of this emission{\textemdash}leptonic (inverse Compton) or hadronic (proton-synchrotron); (2) GRB230307A: a long GRB originating from merger, which challenges GRB progenitor models; and (3) Polarization angle change observed, which does not have a convincing theoretical explanation. Theoretically, I discuss (4) The realization that GRB jets are structured, and its observational consequences; (5) Novel ways of explaining a power law spectra by photon energy gain, without the need for particle acceleration; and (6) New ideas about the origin of the {\textquotedblleft}plateau{\textquotedblright} phase, and the possibility of GRB jet Lorentz factor of a few tens.",

author = "Asaf Pe{\textquoteright}er",

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year = "2025",

doi = "10.1007/978-3-031-90186-7\_21",

language = "אנגלית",

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Pe’er, A 2025, Recent Observational and Theoretical Progress in the Study of Gamma-Ray Bursts. in S Ghosh & AR Rao (eds), The Relativistic Universe: From Classical to Quantum - Proceedings of the International Symposium on Recent Developments in Relativistic Astrophysics, ISRA 2023. Astrophysics and Space Science Proceedings, vol. 61, Springer Science and Business Media B.V., pp. 269-282, 1st International Symposium on Recent Developments in Relativistic Astrophysics, ISRA 2023, Gangtok, India, 11/12/23. https://doi.org/10.1007/978-3-031-90186-7_21

Recent Observational and Theoretical Progress in the Study of Gamma-Ray Bursts. / Pe’er, Asaf.
The Relativistic Universe: From Classical to Quantum - Proceedings of the International Symposium on Recent Developments in Relativistic Astrophysics, ISRA 2023. ed. / Shubhrangshu Ghosh; A.R. Rao. Springer Science and Business Media B.V., 2025. p. 269-282 (Astrophysics and Space Science Proceedings; Vol. 61).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Pe’er A. Recent Observational and Theoretical Progress in the Study of Gamma-Ray Bursts. In Ghosh S, Rao AR, editors, The Relativistic Universe: From Classical to Quantum - Proceedings of the International Symposium on Recent Developments in Relativistic Astrophysics, ISRA 2023. Springer Science and Business Media B.V. 2025. p. 269-282. (Astrophysics and Space Science Proceedings). doi: 10.1007/978-3-031-90186-7_21

Recent Observational and Theoretical Progress in the Study of Gamma-Ray Bursts

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