V404 CYG/GS 2023+338: Monitoring in the Optical with Robotic Telescopes of the MASTER Global Network during the 2015 Superburst

2070 unique, homogeneous photometric and polarization observations of the microquasar in a binary system with a black hole V404 Cyg/GS2023+338 obtained in 2015 with the MASTER global network of robotic telescopes (16 robotic telescopes located at eight points on the Earth in Russia, Spain, South Afr...

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Veröffentlicht in:Astronomy reports 2019-07, Vol.63 (7), p.534-549
Hauptverfasser: Lipunov, V. M., Kuznetsov, A. S., Gorbovskoy, E. S., Kornilov, V. G., Tyurina, N. V., Vladimirov, V. V., Krushinskiy, V. V., Zalozhnykh, I. S., Vlasenko, D. M., Zimnukhov, D. S., Balanutsa, P. V., Gabovich, A., Shakura, N. I., Giovanelli, F., Titarchuk, L. G., Buckley, D. A. H., Gress, O., Budnev, N., Rebolo, R., Serra-Ricart, M., Tlatov, A. G., Senik, V. A., Yurkov, V. V., Ershova, O., Grinshpun, V. G., Ishmukhametova, Yu. V.
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container_end_page 549
container_issue 7
container_start_page 534
container_title Astronomy reports
container_volume 63
creator Lipunov, V. M.
Kuznetsov, A. S.
Gorbovskoy, E. S.
Kornilov, V. G.
Tyurina, N. V.
Vladimirov, V. V.
Krushinskiy, V. V.
Zalozhnykh, I. S.
Vlasenko, D. M.
Zimnukhov, D. S.
Balanutsa, P. V.
Gabovich, A.
Shakura, N. I.
Giovanelli, F.
Titarchuk, L. G.
Buckley, D. A. H.
Gress, O.
Budnev, N.
Rebolo, R.
Serra-Ricart, M.
Tlatov, A. G.
Senik, V. A.
Yurkov, V. V.
Ershova, O.
Grinshpun, V. G.
Ishmukhametova, Yu. V.
description 2070 unique, homogeneous photometric and polarization observations of the microquasar in a binary system with a black hole V404 Cyg/GS2023+338 obtained in 2015 with the MASTER global network of robotic telescopes (16 robotic telescopes located at eight points on the Earth in Russia, Spain, South Africa, and Argentina) are presented. MASTER was the first telescope network to obtain optical observations of the microquasar after its gamma-ray outburst in 2015. Observations were carried out from 18:34:09 UT on June 15, 2015 until December 2015 in four polarizations and in the four standard BV RI filters. The paper presents the results of these observations and a comparative analysis of optical and X-ray data. The observations confirm the previously discovered super-long delays of the optical radiation relative to the X-ray outbursts. Possible mechanisms causing the delay in the optical variations relative to the X-ray variations are discussed. Variability of the optical polarization discovered earlier is confirmed another similar episode reported.
doi_str_mv 10.1134/S1063772919070059
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source SpringerNature Journals
subjects Astronomy
Black holes
Gamma rays
Observations and Techniques
Optical observations
Optical polarization
Optical radiation
Outbursts
Photometry
Physics
Physics and Astronomy
Polarization
Radiation
Robotics
Telescopes
title V404 CYG/GS 2023+338: Monitoring in the Optical with Robotic Telescopes of the MASTER Global Network during the 2015 Superburst
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