327 citations · 1.7k across the 47 of their papers we have counts for
11 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…
Time-Dependent Reconstruction of Non-Stationary Objects with Tomographic or Interferometric Measurements
R. A. Frazin, M. D. Butala, A. Kemball +1
In a number of astrophysical applications one tries to determine the two-dimensional or three-dimensional structure of an object from a time series of measurements. While most meth…
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)…