DETECTION AND INVESTIGATION OF A NUMBER OF TRANSIENTS ON TELESCOPES OF THE MASTER GLOBAL NETWORK AND MASTER OT J044907.58+705812.7 AS AN EXAMPLE

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Abstract

The paper presents details of the detection of a new object MASTER OT J044907.58+705812.7 (AT2024aaf), discovered on January 14, 2024, during a regular survey on the MASTER-Tunka telescope of the MASTER Global Network of Moscow State University. Additional photometry of the object was obtained during joint observations at AZT–11 and 2.6-m ZTSh telescopes of CrAO RAS, MASTER-Tunka and MASTER-Kislovodsk telescopes. Large amplitude (> 7𝑚), blue color at maximum, brightness fluctuations during the outburst with a characteristic time of about 0.06 days, long (at least 50 days) return to a quiet state, the presence of at least four repeated rebrightenings gives grounds to classify the object as a dwarf nova of the WZ Sge type with multiple rebrightenings. The article also provides details of the detection of outbursts of other dwarf novae: MASTER OT J195416.74+494421.1, MASTER OT J150719.46–283114.9, MASTER OT J185835.32–354042.2, MASTER OT J174714.38+150048.1, and MASTER OT J065054.42+593625.5 as an example of the operation of software for processing wide-field images and identifying new and variable sources in them in real time.

About the authors

V. M. Lipunov

Faculty of Physics, Moscow State University named after M. V. Lomonosov; Lomonosov Moscow State University, Sternberg Astronomical Institute

Email: lipunov@sai.msu.ru
Moscow, Russia; Moscow, Russia

P. V. Balanutsa

Lomonosov Moscow State University, Sternberg Astronomical Institute; Research Center Kurchatov Institute

Moscow, Russia; Moscow, Russia

E. P. Pavlenko

State Budget Scientific Institution Crimean Astrophysical Observatory

Nauchny, Crimea

A. A. Sosnovskij

State Budget Scientific Institution Crimean Astrophysical Observatory

Nauchny, Crimea

A. N. Tarasenkov

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

I. E. Panchenko

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

K. A. Antonyuk

State Budget Scientific Institution Crimean Astrophysical Observatory

Nauchny, Crimea

O. I. Antonyuk

State Budget Scientific Institution Crimean Astrophysical Observatory

Nauchny, Crimea

O. A. Gress

Lomonosov Moscow State University, Sternberg Astronomical Institute; Irkutsk State University, Institute of Applied Physics

Moscow, Russia; Irkutsk, Russia

A. S. Kuznetsov

Faculty of Physics, Moscow State University named after M. V. Lomonosov; Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia; Moscow, Russia

K. K. Zhirkov

Faculty of Physics, Moscow State University named after M. V. Lomonosov; Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia; Moscow, Russia

N. V. Tyurina

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

A. R. Chasovnikov

Faculty of Physics, Moscow State University named after M. V. Lomonosov; Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia; Moscow, Russia

G. A. Antipov

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

E. S. Gorbovskoy

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

A. N. Yudin

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

V. V. Topolev

Faculty of Physics, Moscow State University named after M. V. Lomonosov; Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia; Moscow, Russia

D. V. Cheryasov

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

D. M. Vlasenko

Faculty of Physics, Moscow State University named after M. V. Lomonosov; Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia; Moscow, Russia

Y. Kechin

Faculty of Physics, Moscow State University named after M. V. Lomonosov; Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia; Moscow, Russia

V. A. Senik

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

A. F. Iyudin

Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University

Moscow, Russia

N. M. Budnev

Irkutsk State University, Institute of Applied Physics

Irkutsk, Russia

A. G. Tlatov

Kislovodsk Mountain Astronomical Station, Main Astronomical Observatory, Russian Academy of Sciences

Kislovodsk, Russia

K. A. Vetrov

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

M. A. Gulyaev

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

V. V. Chazov

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

V. V. Vladimirov

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

D. S. Zimnukhov

Lomonosov Moscow State University, Sternberg Astronomical Institute

Moscow, Russia

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