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mJIVE-20: a survey for compact mJy radio objects with the Very Long Baseline Array
A. T. Deller, E. Middelberg
We present the description and early results of the mJy Imaging VLBA Exploration at 20 cm (mJIVE-20). mJIVE-20 is a large project on the Very Long Baseline Array which uses "filler…
The Angular Broadening of the Galactic Center Pulsar SGR J1745-29: A New Constraint on the Scattering Medium
Geoffrey C. Bower, Adam Deller, Paul Demorest +6
The pulsed radio emission from the Galactic Center (GC) magnetar SGR J1745-29 probes the turbulent, magnetized plasma of the GC hyperstrong scattering screen through both angular a…
A strong magnetic field around the supermassive black hole at the centre of the Galaxy
R. P. Eatough, H. Falcke, R. Karuppusamy +20
The centre of our Milky Way harbours the closest candidate for a supermassive black hole. The source is thought to be powered by radiatively inefficient accretion of gas from its e…
LOFAR: The LOw-Frequency ARray
M. P. van Haarlem, M. W. Wise, A. W. Gunst +197
LOFAR, the LOw-Frequency ARray, is a new-generation radio interferometer constructed in the north of the Netherlands and across europe. Utilizing a novel phased-array design, LOFAR…
Widefield VLBI observations of M31: A Unique Probe of the Ionized ISM of a nearby galaxy
John S. Morgan, Megan K. Argo, Cathryn M. Trott +5
The VLBA was used at 1.6 GHz to observe a target field 50 arcminutes in diameter including the core of M31. Novel VLBI correlation techniques were used to observe 200 sources simul…
A Very Long Baseline Interferometry Detection of the Class I Protostar IRS 5 in Corona Australis
Adam T. Deller, Jan Forbrich, Laurent Loinard
Aims: Very Long Baseline Interferometry yields physical constraints on the compact radio emission of young stellar objects. At the same time, such measurements can be used for prec…