Details

Autor(en) / Beteiligte

• 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.

Titel

Three-stage Collapse of the Long Gamma-Ray Burst from GRB 160625B Prompt Multiwavelength Observations

Ist Teil von

• The Astrophysical journal, 2023-02, Vol.943 (2), p.181

Ort / Verlag

Philadelphia: The American Astronomical Society

Erscheinungsjahr

2023

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• 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.