Detection and Study of a Number of Transients on Telescopes of the MASTER Global Network and MASTER OT J044907.58+705812.7 as an Example

期刊论文
发表日期：

2024年12月1日

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V. M. Lipunov,
P. V. Balanutsa,
E. P. Pavlenko,
A. A. Sosnovskij,
A. N. Tarasenkov,
I. E. Panchenko,
K. A. Antonyuk,
O. I. Antonyuk,
O. A. Gress,
A. S. Kuznetsov,
K. K. Zhirkov,
N. V. Tyurina,
A. R. Chasovnikov,
G. A. Antipov,
E. S. Gorbovskoy,
A. N. Yudin,
V. V. Topolev,
D. V. Cheryasov,
D. M. Vlasenko,
Y. Kechin,
V. A. Senik,
A. F. Iyudin,
N. M. Budnev,
A. G. Tlatov,
K. A. Vetrov,
M. A. Gulyaev,
V. V. Chazov,
V. V. Vladimirov,
D. S. Zimnukhov

摘要

Abstract—

In this paper, details of the detection of new object MASTER OT J044907.58+705812.7 (AT2024aaf) discovered on January 14, 2024 during a regular survey using the MASTER-Tunka telescope of the MASTER Global Network of Moscow State University have been present. Additional photometry of the object during joint observations at AZT-11 and 2.6-m ZTSh telescopes of CrAO RAS, MASTER-Tunka, and MASTER-Kislovodsk telescopes has been obtained. Large amplitude \(( > {\kern 1pt} {{7}^{m}})\) , blue color at maximum, brightness fluctuations during the flare with a characteristic time of ~0.06 days, long (at least 50 days) return to a calm 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. In the paper, details of the detection of flares 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 have also been provided.