Observations of H2O and OH masers in star-forming regions

Authors :: Nadezhda Shakhvorostova
E. E. Lekht
I. E. Val'tts
N. T. Ashimbaeva
Olga Bayandina
P. Colom
A. M. Tolmachev
G. M. Rudnitskij
M. I. Pashchenko
Source :: Proceedings of the International Astronomical Union. 14:330-332
Publication Year :: 2018
Publisher :: Cambridge University Press (CUP), 2018.
Abstract: We report long-term observations of H2O and OH maser emission sources at wavelengths of 1.35 and 18 cm associated with star-forming regions. Strong quasi-periodic flares of maser emission have been observed. Several sources (in particular, G25.65+1.05, IRAS 16293−2422, Cep A) have displayed strong flares in the H2O line, when their peak flux density raised by a few orders of magnitude above the quiet state. Possible causes of this are discussed.