Infocommunications and Radio Technologies

ИНФОКОММУНИКАЦИОННЫЕ И РАДИОЭЛЕКТРОННЫЕ ТЕХНОЛОГИИ

2587-9936

53252

10.29039/2587-9936.2022.05.2.11

Физические науки (1.3)

PHYSICAL SCIENCES (1.3)

Физические науки (1.3)

Super-Powerful Flare Phenomenon of the Water Maser in the Protostellar System IRAS 16293-2422

Сверхмощное вспышечное явление мазера водяного пара в протозвездной системе IRAS 16293-2422

Вольвач

Лариса Николаевна

Volvach

Larisa Nikolaevna

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

Вольвач

Александр Евгеньевич

Volvach

Alexander Evgen'evich

volvach@bk.ru

доктор физико-математических наук;

doctor 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

Физический институт им. П. Н. Лебедева РАН Россия Lebedev Physical Institute, Russian Academy of Sciences Russian Federation

28 06 2022

5 2 153 168 20 06 2022 20 06 2022

https://rusjbpc.ru/en/nauka/article/53252/view

На основе длительного мониторинга мазера водяного пара на частоте 22.2 ГГц с начала 2019 по март 2021 гг. было зарегистрировано самое мощное за всю историю наблюдений вспышечное явление в протозвездной системе IRAS 16293-2422 на скорости около –1.5 км/с, длившееся около двух лет. Мазерное излучение исходило из крупнейшей структуры мазерных пятен, высокая плотность которых создавала их частичное перекрытие друг друга по времени. Общее число отдельных мощных вспышек мазера воды составило десять. Благодаря высокой детализации полученных данных, фиксировавшихся с интервалом 1—2 дня, были получены новые уникальные результаты. Впервые было подтверждено существование столь сложной конфигурации излучающих мазерных пятен с очень близкими лучевыми скоростями, находящихся на луче зрения наблюдателя. Удалось установить, что мазеры мощных вспышек находились в ненасыщенном состоянии благодаря каскадной накачке нескольких мазеров на луче зрения наблюдателя. Получены новые важные параметры мазеров воды и высказано предположение об их локализации в газово-пылевой структуре IRAS 16293-2422.

Based on long-term monitoring of the water vapor maser at 22.2 GHz from early 2019 to March 2021, the most powerful flare event in the entire history of observations was recorded in the protostellar system IRAS 16293-2422 at a velocity of about –1.5 km s–1, lasting of about two years. The maser emission came from the largest structure of maser spots, the high density of which created their partial overlap in time. The total number of individual flares of the water maser reached ten. Due to the high detail of the data obtained, recorded at intervals of 1–2 days, new unique results were obtained. The existence of such a complex configuration of emitting maser spots with very similar radial velocities located on the observer’s line of sight was confirmed for the first time. It was possible to establish that the masers of powerful flares were in an un-saturated state due to the cascade pumping of several masers on the observer’s line of sight. New important parameters of water masers have been obtained, and an assumption has been made about their localization in the gas-dust structure IRAS 16293-2422.

звездные образования звезды с экзопланетами молекулы радиолинии водные мазеры

star formations stars with exoplanet molecules radio lines water masers

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