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A flare of the H2O maser IRAS 16293-2422статья Краткое сообщение Электронная публикация
- Авторы: Ashimbaeva N.T., Lekht E.E., Pashchenko M.I., Rudnitskij G.M., Tolmachev A.M.
- Журнал: The Astronomer’s Telegram
- Номер: 11800
- Год издания: 2018
- Аннотация: We report a new flare of the source of maser radio emission in the H2O line at 22.235 GHz IRAS 16293-2422. The source is associated with a young stellar system at a distance of about 140 pc (S.A. Dzib et al. 2018, A&A 614, A20). Observations were carried out at the 22-meter radio telescope in Pushchino, Russia. The spectrum contains a strong single peak at VLSR=1.6-1.7 km/s. During June 2018 its flux density doubled. The history of its flux density variations in 2018 is: Feb 27 - 230 Jy; Mar 13 - 271 Jy; Apr 24 - 2405 Jy; May 31 - 4723 Jy; Jun 25 - 9043 Jy; Jun 27 - 8878 Jy. The PDF graphs of the line profile can be downloaded from the indicated link. The source strongly flared several times since 1999, when we began to monitor it. Previous results (together with its OH observations) were reported by P. Colom et al. 2016, Astron. Reports 60, 730. PDF graphs of the H2O line profile (http://comet.sai.msu.ru/~gmr/IRAS16293-2422)
- Добавил в систему: Рудницкий Георгий Михайлович