▪ Abstract This review discusses three main topics: evolution to the ultra-compact (UC) state;
the properties of UC HII regions and their environments; and UC HII regions as probes of …

We report the results of a search for 6.7 GHz methanol masers toward low-mass young
stellar objects (YSOs) and (pre) protostellar condensations with the Australia Telescope …

We present VLBI observations of 6.7 and 12.2 GHz methanol masers in 14 star-forming
regions, namely NGC 7538, S 252, W 75N, W 48, G 31.28+ 0.06, S 231, S 255, S 269, Mon …

The GLIMPSE and MSX surveys have been used to examine the mid-infrared properties of a
statistically complete sample of 6.7 GHz methanol masers. The GLIMPSE point sources …

We present the fourth portion of a Galactic plane survey of methanol masers at 6668 MHz,
spanning the longitude range 186°–330°. We report 207 maser detections, 89 new to the …

We present the second portion of an unbiased survey of the Galactic plane for 6668-MHz
methanol masers. This section of the survey spans the longitude range 6° to 20°. We report …

ABSTRACT We present Atacama Large Millimeter/submillimeter Array line and continuum
observations at 1.2 mm with∼ 0 farcs 3 resolution that uncover a Keplerian-like disk around …

We present a comparison of Class ii CH 3 OH (6.7 GHz) and H 2 O (22.2 GHz) masers at
high spatial resolution in a sample of 29 massive star-forming regions. Absolute positions of …

Abstract A sample of 54 6.7-GHz methanol masers was monitored using the Hartebeesthoek
26-m telescope during the period 1999 January–2003 March. The observations were taken …

Radio continuum observations using the Australia telescope compact array at 5.5, 9.0, 17.0
and 22.8 GHz have detected free–free emission associated with 45 of 49 massive young …