We present results on simultaneous observations of Class I methanol masers at 25, 36, and
44 GHz towards 22 Galactic targets carried out with the Effelsberg 100-m telescope. The …

The variability study of 6.7 GHz methanol masers has become a useful way to improve our
understanding of the physical conditions in high-mass star-forming regions. Based on the …

Context. The G25. 65+ 1.04 source is one of the few known 'super-flare'water masers in the
Milky Way, but in contrast to other super-flare sources, it remains the least studied. In fact …

This paper reports observations of a 22 GHz water maser 'superburst'in the G25. 65+ 1.05
massive star-forming region, conducted in response to an alert from the Maser Monitoring …

We use 3D computer modelling to investigate the time-scales and radiative output from
maser flares generated by the impact of shock waves on astronomical unit-scale clouds in …

Eruptions of young stellar objects (YSOs) are rare events, therefore a new outburst is always
noteworthy. We present two new high-amplitude variable YSOs, J183421. 85− 055951.0 (# …

Giant molecular clouds (GMC) in our and other galaxies and small dense molecular clouds
inside the Galaxy (IRDC) form cores due to gravitational instability, in which massive stars …

The paper is devoted to the analysis of the observation results with the single-mirror radio
telescope RT-22 (PRAO, LPI) in the water vapor maser line at 22 GHz in the direction of dust …

The Maser Monitoring Organisation is a collection of researchers exploring the use of time-
variable maser emission in the investigation of astrophysical phenomena. The forward …

Recently, remarkable progress has been made in understanding the formation of high mass
stars. Observations provided direct evidence that massive young stellar objects (MYSOs) …