202 citations · 2.9k across the 85 of their papers we have counts for
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Multi-epoch VLBI of a double maser super burst
Ross A. Burns, Olga Bayandina, Gabor Orosz +20
In a rare and spectacular display, two well-known massive star forming regions, W49N and G25.65+1.05, recently underwent maser 'super burst' - their fluxes suddenly increasing abov…
G11.92-0.61 MM 1: A fragmented Keplerian disk surrounding a proto-O star
J. D. Ilee, C. J. Cyganowski, C. L. Brogan +5
We present high resolution (300 au) Atacama Large Millimeter/submillimeter Array (ALMA) observations of the massive young stellar object G11.92-0.61 MM 1. We resolve the imme…
First Results of an ALMA Band 10 Spectral Line Survey of NGC 6334I: Detections of Glycolaldehyde (HC(O)CHOH) and a New Compact Bipolar Outflow in HDO and CS
Brett A. McGuire, Crystal L. Brogan, Todd R. Hunter +9
We present the first results of a pilot program to conduct an ALMA Band 10 spectral line survey of the high-mass star-forming region NGC 6334I. The observations were taken in excep…
Science with an ngVLA: Understanding Massive Star Formation through Maser Imaging
Todd R. Hunter, Crystal L. Brogan, Anna Bartkiewicz +6
Imaging the bright maser emission produced by several molecular species at centimeter wavelengths is an essential tool for understanding the process of massive star formation becau…
Advanced Gain Calibration Techniques in Radio Interferometry
Crystal L. Brogan, Todd R. Hunter, Ed B. Fomalont
In this lecture, we describe a number of advanced gain calibration techniques. In particular, self-calibration is an important tool in interferometric imaging at all wavelengths. I…
A Masing Event in NGC6334I: Contemporaneous Flaring of Hydroxyl, Methanol and Water Masers
G. C. MacLeod, D. P. Smits, S. Goedhart +7
As a product of the maser monitoring program with the 26m telescope of the Hartebeesthoek Radio Astronomy Observatory (HartRAO), we present an unprecedented, contemporaneous flarin…
Low levels of methanol deuteration in the high-mass star-forming region NGC 6334I
Eva G. Bøgelund, Brett A. McGuire, Niels F. W. Ligterink +6
The abundance of deuterated molecules in a star-forming region is sensitive to the environment in which they are formed. Deuteration fractions therefore provide a powerful tool for…
Distributed star formation throughout the Galactic Center cloud Sgr B2
A. G. Ginsburg, John Bally, Ashley Barnes +23
We report ALMA observations with resolution " at 3 mm of the extended Sgr B2 cloud in the Central Molecular Zone (CMZ). We detect 271 compact sources, most of which are…
The Extraordinary Outburst in the Massive Protostellar System NGC6334I-MM1: Emergence of Strong 6.7 GHz Methanol Masers
T. R. Hunter, C. L. Brogan, G. C. MacLeod +7
We report the first sub-arcsecond VLA imaging of 6 GHz continuum, methanol maser, and excited-state hydroxyl maser emission toward the massive protostellar cluster NGC6334I followi…