79 citations · 247 across the 6 of their papers we have counts for
4 papers · 1 filter
SiO masers in TX Cam: Simultaneous VLBA observations of two 43 GHz masers at four epochs
Jiyune Yi, R. S. Booth, J. E. Conway +1
We present the results of simultaneous high resolution observations of v=1 and v=2, J=1-0 SiO masers toward TX Cam at four epochs covering a stellar cycle. Near maser maximum (Epoc…
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)…
VLBA Continuum Observations of NGC 4258: Constraints on an Advection-Dominated Accretion Flow
J. R. Herrnstein, L. J. Greenhill, J. M. Moran +4
We report a 3 sigma upper limit of 220 microJanskys on any 22-GHz continuum emission coincident with the central engine in NGC 4258. If NGC 4258 is powered by an advection-dominate…
Deceleration in the Expansion of SN1993J
J. M. Marcaide, A. Alberdi, E. Ros +13
A rarity among supernova, SN 1993J in M81 can be studied with high spatial resolution. Its radio power and distance permit VLBI observations to monitor the expansion of its angular…