179 citations · 183 across the 4 of their papers we have counts for
6 papers · 1 filter
A VLBI polarization study of SiO masers towards VY CMa
L. L. Richter, A. J. Kemball, J. L. Jonas
Maser emission from the SiO molecule has been widely observed in the near-circumstellar envelopes of late-type, evolved stars. VLBI images can resolve individual SiO maser spots, p…
Stellar masers, circumstellar envelopes, and supernova remnants
Athol J. Kemball
This paper reviews recent advances in the study or circumstellar masers and masers found toward supernova remnants. The review is organized by science focus area, including the ast…
Bootstrap resampling as a tool for radio-interferometric imaging fidelity assessment
Athol Kemball, Adam Martinsek
We report on a numerical evaluation of the statistical bootstrap as a technique for radio-interferometric imaging fidelity assessment. The development of a fidelity assessment tech…
A movie of a star: multi-epoch VLBA imaging of the SiO masers towards the Mira variable TX Cam
P. J. Diamond, A. J. Kemball
We describe an observing campaign using the Very Long Baseline Array (VLBA) to monitor the time-evolution of the v=1, J=1-0 SiO maser emission towards the Mira variable TX Cam. The…
The Relative Spatial Distribution of SiO Masers in AGB Stars at 43 and 86 GHz
J. -F. Desmurs, R. Soria-Ruiz, F. Colomer +6
We present the first VLBI images of SiO masers in the circumstellar envelope of an S-type star obtained with the newly developed capabilities of the Very Long Baseline Array (VLBA)…
VLBI Polarisation Images of the Gravitational Lens B0218+357
A. J. Kemball, A. R. Patnaik, R. W. Porcas
We present preliminary polarisation VLBI maps of the gravitational lens system B0218+357, made at 3 different frequencies.