Infocommunications and Radio Technologies Infocommunications and Radio Technologies ИНФОКОММУНИКАЦИОННЫЕ И РАДИОЭЛЕКТРОННЫЕ ТЕХНОЛОГИИ 2587-9936 53193 10.29039/2587-9936.2022.05.1.01 Физические науки (1.3) PHYSICAL SCIENCES (1.3) Физические науки (1.3) Detection of Dense Clusters of Water Vapor Maser Sources during Powerful Flares in the IRAS 16293-2422 Обнаружение плотных скоплений источников мазера водяного пара во время мощных вспышек в комплексе IRAS 16293-2422 Вольвач Александр Евгеньевич Volvach Alexander Evgen'evich volvach@bk.ru

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 Вольвач Лариса Николаевна Volvach Larisa Nikolaevna

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Ларионов Михаил Григорьевич Larionov Michail Grigor'evich

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 Крымская астрофизическая обсерватория РАН пгт. Научный Россия Crimean Astrophysical Observatory Nauchni Russian Federation Крымская астрофизическая обсерватория РАН пгт. Научный Россия Crimean Astrophysical Observatory Nauchni Russian Federation Физический институт им. П. Н. Лебедева РАН Россия Lebedev Physical Institute, Russian Academy of Sciences Russian Federation 25 03 2022 25 03 2022 5 1 1 24 20 03 2022 21 03 2022 https://rusjbpc.ru/en/nauka/article/53193/view

По данным многолетнего мониторинга водного мазерного перехода на частоте 22.2 ГГц с 2019 по 2021 гг. нам удалось обнаружить два мощных вспышечных явления в IRAS 16293-2422, длившихся в общей сложности около года и происходивших на лучевых скоростях около 6 и 8 км/с. В обоих случаях мощные короткие вспышки располагались над менее мощными, но более продолжительными, амплитудами 4 и 0.6 кЯн. Их излучение инициировало возникновение более мощных вспышек. Благодаря многолетним детальным наблюдениям этих мазеров воды впервые было подтверждено существование конфигураций излучающих мазерных пятен с очень близкими лучевыми скоростями, находящихся на луче зрения наблюдателя. Это позволило продемонстрировать правильность гипотезы активации мазера водяного пара, основанной на увеличении длины усиления мазера за счет нескольких мазерных сгущений, находящихся на луче зрения наблюдателя. Наблюдалось ненасыщенное состояние самых мощных и самых коротких мазерных вспышек, а также насыщенное состояние более слабых и продолжительных. Получены новые важные параметры мазеров воды и предполагаемое их положение.

Based on long-term monitoring data of the water maser transition at 22.2 GHz from 2019 to 2021 we were able to detect two powerful phenomena in IRAS 16293-2422 that lasted in total about a year and that occurred at radial velocities near 6 and 8 km s–1. In both cases, powerful short flares were located on the top of less powerful, but more prolonged ones (4 and 0.6 kJy). Their radiation initiated the release of more powerful flares. Thanks to long-term detailed observations of water masers, the exist-ence of the several emitting maser spot configurations with very close radial velocities, located in the line of sight of the observer were confirmed for the first time. This made it possible to demonstrate the correctness of the water maser activation hypothesis based on an increase in the amplification length of the maser due to several maser condensations located in the line of sight of the observer. The unsaturated state of the most powerful and shortest maser flares, as well as the saturated state of the weaker ones, has been observed. New important parameters of the water masers and the as-sumed location of the maser spots have been obtained.

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