Exceptionally bright optical emission from a rare and distant gamma-ray burst

0580631 - FZÚ 2024 RIV US eng J - Článek v odborném periodiku
Oganesyan, G. - Karpov, Sergey - Salafia, O. S. - Jelínek, Martin - Beskin, G. - Ronchini, S. - Banerjee, B. - Branchesi, M. - Štrobl, Jan - Polášek, Cyril - Hudec, René - Ivanov, E. - Katkova, E. - Perkov, A. - Biryukov, A. - Lyapsina, N. - Sasyuk, V. - Mašek, Martin - Janeček, Petr - Ebr, Jan - Juryšek, Jakub - Cunniffe, Ronan - Prouza, Michael
Exceptionally bright optical emission from a rare and distant gamma-ray burst.
Nature Astronomy. Roč. 7, č. 7 (2023), s. 843-855. ISSN 2397-3366. E-ISSN 2397-3366
Grant CEP: GA MŠMT EF15_003/0000437; GA MŠMT(CZ) EF18_046/0016007; GA MŠMT EF16_013/0001403; GA MŠMT LTT17006
Výzkumná infrastruktura: CTA-CZ II - 90105
Institucionální podpora: RVO:68378271 ; RVO:67985815
Klíčová slova: astrophysics * High Energy Astrophysical Phenomena * gamma-ray burst
Obor OECD: Astronomy (including astrophysics,space science); Astronomy (including astrophysics,space science) (ASU-R)
Impakt faktor: 14.1, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1038/s41550-023-01972-4

Long gamma-ray bursts are produced by energy dissipation within ultra-relativistic jets launched by newborn black holes after the collapse of a peculiar class of massive stars. Right after the luminous and highly variable gamma-ray emission, a multi-wavelength afterglow is released by external dissipation of the jet energy in the medium that surrounds the progenitor star. We report the discovery of a very bright (~10 mag) optical emission ~28 s after the explosion of the extremely luminous and energetic GRB 210619B located at redshift 1.937. We observed the transition from a bright reverse to the forward shock emission, demonstrating that the early and late gamma-ray-burst multi-wavelength emission originated from a narrow, magnetized jet propagating into a rarefied interstellar medium. These conditions are found to be optimal to produce the bright optical flash from the reverse shock.
Trvalý link: https://hdl.handle.net/11104/0349406