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Detection of Sagittarius A* at 330 MHz with the Very Large Array
Michael E. Nord, T. Joseph W. Lazio, Namir E. Kassim +2
We report the detection of Sagittarius A*, the radio source associated with our Galaxy's central massive black hole, at 330 MHz with the Very Large Array. Implications for the spec…
Pulsar Parallaxes at 5 GHz with the Very Long Baseline Array
S. Chatterjee, J. M. Cordes, W. H. T. Vlemmings +3
We present the first pulsar parallaxes measured with phase-referenced pulsar VLBI observations at 5 GHz. Due to the steep spectra of pulsars, previous astrometric measurements have…
Broad Recombination Line Objects in W49N on 600 AU Scales
C. G. De Pree, D. J. Wilner, A. J. Mercer +3
High resolution 7 mm observations of the W49N massive star forming region have detected recombination line emission from the individual ultracompact (UC) HII regions on 50 milliarc…
Imprints of neutron stars in the interstellar medium
E. M. Reynoso, S. Johnston, A. J. Green +3
We have carried out an HI survey towards X-ray central compact objects (CCOs) inside supernova remnants (SNRs) which shows that many of them are placed within local HI minima. The…
New high-resolution radio observations of the SNR CTB 80
G. Castelleti, G. Dubner, K. Golap +4
We report new high resolution and high sensitivity radio observations of the extended supernova remnant (SNR) CTB 80 (G69.0+2.7) at 240 MHz, 324 MHz, 618 MHz, and 1380 MHz. The ima…
VLA observations of 6-cm excited OH
Patrick Palmer, W. M. Goss, J. B. Whiteoak
The VLA was used to determine precise positions for 4765-MHz OH maser emission sources toward star-forming regions which had been observed about seven months earlier with the Effel…