Jul 5 – 10, 2021
Europe/Rome timezone

Three Stage Collapse From Prompt Multiwavelength Observations of GRB160625B

Jul 6, 2021, 9:50 AM
20m
Invited talk in the parallel session Multichannel studies of nonstationary relativistic stars Multichannel Studies of Nonstationary Relativistic Stars

Speaker

Prof. Vladimir Lipunov (Lomonosov Moscow State University, SAI, Physics Department)

Description

We present the results of synchronous multiwave observations of the intrinsic gamma and optical radiation of the long GRB160625B gamma-ray burst by the MASTER Global Network, the Lomonosov Gamma-Observatory and the Konus-Wind gamma detector. We see traces of quasiperiodic optical pulsations of the intrinsic optical radiation on scales of several tens of seconds. We associate quasiperiodic pulsations with forced precession of a self-gravitating slowly collapsing object - a spinar. We also present the results of recording hard X-ray and gamma radiation, obtained by burst detectors on spacecraft. We propose a three-stage scenario for the collapse of the core of a massive star, which explains three characteristic phenomena - the X-ray precursor, the main peak of the gamma-ray burst, and the weak peak at the end of the active phase of the gamma-ray burst.

Primary author

Prof. Vladimir Lipunov (Lomonosov Moscow State University, SAI, Physics Department)

Co-authors

Prof. Victor Antonovich Sadovnichii ( Lomonosov Moscow State University) Prof. Sergey Svertilov (Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics (SINP MSU)) Dr Dmitry Svinkin (Ioffe Institute of theoretical physics) Dr Ivan Yashin (4 Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics (SINP MSU)) Dr Sergey Simakov (Lomonosov MSU, SAI) Dr Dmitry Frederiks (Ioffe Institute of theoretical physics) Dr Victor Kornilov (Lomonosov Moscow State University, SAI) Prof. Mikhail Panasyuk (Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics (SINP MSU)) Mr Ebgeny Gorbovskoy (Lomonosov Moscow State University, SAI) Dr Vladislav Topolev ( Lomonosov Moscow State University, Physics Department) Dr Galina Lipunova ( Lomonosov Moscow State University, SAI) Dr Nataly Tiurina ( Lomonosov Moscow State University, SAI) Dr Kirill Zhirkov ( Lomonosov Moscow State University, SAI, Physics Department) Mr Aristarh Chasovnikov ( Lomonosov Moscow State University, SAI, Physics Department) Dr Anatoly Iyudin ( Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics ) Dr Andrey Bogomolov ( Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics ) Dr Vitaly Bogomolov (Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics (SINP MSU)) Prof. Rafael Rebolo ( Instituto de Astrofísica de Canarias) Dr Miquel Serra-Ricart ( Instituto de Astrofísica de Canarias, Lactea, E38205, LaLaguna, Tenerife, Spain) Mr Oleg Gress (Irkutsk State University) Prof. Nikolay Budnev (Irkutsk State University) Mr Alexander Gabovich (Blagoveschensk State Pedagogical University) Ms Olga Ershova (Irkutsk State University)

Presentation materials

There are no materials yet.

Proceedings

Paper