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

IF 1.1 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Astronomy Reports Pub Date : 2025-03-14 DOI:10.1134/S1063772925701318

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

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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.

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以 MASTER OT J044907.58+705812.7 为例，对 MASTER 全球网络望远镜上的一些瞬变现象进行探测和研究

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来源期刊

Astronomy Reports 地学天文-天文与天体物理

CiteScore

1.40

自引率

20.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Astronomy Reports is an international peer reviewed journal that publishes original papers on astronomical topics, including theoretical and observational astrophysics, physics of the Sun, planetary astrophysics, radio astronomy, stellar astronomy, celestial mechanics, and astronomy methods and instrumentation.