Browsing Faculty of Natural and Agricultural Sciences by Subject "Stars: protostars"
Now showing items 1-5 of 5
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Detection of new methanol maser transitions associated with G358.93−0.03
(Oxford Univ Press, 2019)We report the detection of new 12.178, 12.229, 20.347, and 23.121 GHz methanol masers in the massive star-forming region G358.93−0.03, which are flaring on similarly short time-scales (days) as the 6.668 GHz methanol masers ... -
The extraordinary outburst in the massive protostellar system NGC 6334I-MM1: flaring of the water masers in a north-south bipolar outflow driven by MM1B
(IOP Publishing, 2018)We compare multi-epoch sub-arcsecond Very Large Array imaging of the 22 GHz water masers toward the massive protocluster NGC 6334I observed before and after the recent outburst of MM1B in (sub)millimeter continuum. Since ... -
An extraordinary outburst in the massive protostellar system NGC 6334I-MM1: quadrupling of the millimeter continuum
(IOP, 2017)Based on sub-arcsecond Atacama Large Millimeter/submillimeter Array (ALMA) and Submillimeter Array (SMA) 1.3 mm continuum images of the massive protocluster NGC 6334I obtained in 2015 and 2008, we find that the dust emission ... -
A masing event in NGC 6334I: contemporaneous flaring of hydroxyl, methanol, and water masers
(Oxford Univ Press, 2018)As a product of the maser monitoring program with the 26 m telescope of the Hartebeesthoek Radio Astronomy Observatory (HartRAO), we present an unprecedented, contemporaneous flaring event of 10 maser transitions in hydroxyl, ... -
Sub-arcsecond (sub)millimeter imaging of the massive protocluster G358.93−0.03: discovery of 14 new methanol maser lines associated with a hot core
(IOP Publishing, 2019)We present (sub)millimeter imaging at 0farcs5 resolution of the massive star-forming region G358.93−0.03 acquired in multiple epochs at 2 and 3 months following the recent flaring of its 6.7 GHz CH3OH maser emission. Using ...