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- Netherlands Institute for Radio AstronomyNL194 papers
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21 papers · 1 filter
Structure in the radio counterpart to the 2004 Dec 27 giant flare from SGR 1806-20
R. P. Fender, T. W. B. Muxlow, M. A. Garrett +7
On Dec 27, 2004, the magnetar SGR 1806-20 underwent an enormous outburst resulting in the formation of an expanding, moving, and fading radio source. We report observations of this…
Milliarcsecond-Scale Structure in the Gamma-Ray Loud Quasar PKS 1622-297
Kiyoaki Wajima, Hayley E. Bignall, Hideyuki Kobayashi +5
We have made a high-resolution VLBI observation of the gamma-ray loud quasar PKS 1622-297 with the HALCA spacecraft and ground radio telescopes at 5 GHz in 1998 February, almost th…
The Magnetic Field in the Star-forming Region Cepheus A from Water Maser Polarization Observations
W. H. T. Vlemmings, P. J. Diamond, H. J. van Langevelde +1
We present linear and circular polarization observations of the water masers in 4 distinct regions spread over 1x2 arcseconds around the HW2 high-mass young stellar object in the C…
Ring shaped 6.7 GHz methanol maser emission around a young high-mass star
A. Bartkiewicz, M. Szymczak, H. J. van Langevelde
We report on EVN imaging of the 6.7 GHz methanol maser emission from the candidate high-mass protostar G23.657-0.127. The masers originate in a nearly circular ring of 127 mas radi…
VSOP monitoring of the compact BL Lac object AO 0235+164
S. Frey, L. I. Gurvits, D. C. Gabuzda +7
In 1999, the highly compact and variable BL Lac object AO 0235+164 was identified as the highest brightness temperature active galactic nucleus observed with the VLBI Space Observa…
Deep Extragalactic VLBI-Optical Survey (DEVOS): I. Pilot MERLIN and VLBI observations
L. Mosoni, S. Frey, L. I. Gurvits +3
We present the results of the pilot observations of the Deep Extragalactic VLBI-Optical Survey (DEVOS). Our ultimate aim is to collect information on compact structures in a large…