학술논문
Three-stage Collapse of the Long Gamma-Ray Burst from GRB 160625B Prompt Multiwavelength Observations
Document Type
Working Paper
Author
Lipunov, V. M.; Sadovnichy, V. A.; Panasyuk, M. I.; Yashin, I. V.; Svertilov, S. I.; Simakov, S. G.; Svinkin, D.; Gorbovskoy, E.; Lipunova, G. V.; Kornilov, V. G.; Frederiks, D.; Topolev, V.; Rebolo, R.; Serra, M.; Tiurina, N.; Minkina, E.; Bogomolov, V. V.; Bogomolov, A. V.; Iyudin, A. F.; Chasovnikov, A.; Gabovich, A.; Tsvetkova, A.; Budnev, N. M.; Gress, O. A.; Antipov, G.; Gorbunov, I.; Vlasenko, D.; Balanutsa, P.; Podesta, R.; Zhirkov, K.; Kuznetsov, A.; Vladimirov, V.; Podesta, F.; Francile, C.; Sergienko, Yu.; Tlatov, A.; Ershova, O.; Cheryasov, D.; Yurkov, V.; Krylov, A. V.
Source
ApJ 943 181 (2023)
Subject
Language
Abstract
This article presents the early results of synchronous multiwavelength observations of one of the brightest gamma-ray bursts (GRBs) GRB 160625B with the detailed continuous fast optical photometry of its optical counterpart obtained by MASTER and with hard X-ray and gamma-ray emission, obtained by the Lomonosov and Konus-Wind spacecraft. The detailed photometry led us to detect the quasi-periodical emission components in the intrinsic optical emission. As a result of our analysis of synchronous multiwavelength observations, we propose a three-stage collapse scenario for this long and bright GRB. We suggest that quasiperiodic fluctuations may be associated with forced precession of a self-gravitating rapidly rotating superdense body (spinar), whose evolution is determined by a powerful magnetic field. The spinar's mass allows it to collapse into a black hole at the end of evolution.
Comment: 22 pages, 12 figures, 4 tables, accepted for publication in ApJ
Comment: 22 pages, 12 figures, 4 tables, accepted for publication in ApJ