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The shroud around the "compact, symmetric" radio jets in NGC 1052
R. C. Vermeulen, E. Ros, K. I. Kellermann +3
This is a paper on young jet material in a frustratingly complex environment. NGC 1052 has a compact, flat- or GHz-peaked-spectrum radio nucleus consisting of bi-symmetric jets, or…
Astrometry of circumstellar masers
H. J. van Langevelde, W. H. T. Vlemmings
The circumstellar masers around evolved stars offer an interesting possibility to measure stellar parameters through VLBI astrometry. In this paper the application of this techniqu…
Circular Polarization of Water Masers in the Circumstellar Envelopes of Late Type Stars
W. H. T. Vlemmings, P. J. Diamond, H. J. van Langevelde
We present circular polarization measurements of circumstellar H_2O masers. The circular polarization detected in the (6_{16}-5_{23}) rotational transition of the H_{2}O maser can…
Magnetic Fields in the envelopes of late-type stars: Circular Polarization of H2O Masers
W. H. T. Vlemmings, P. J. Diamond, H. J. van Langevelde
We present the first circular polarization measurements of circumstellar water masers around a sample of late-type stars. These observations are used to obtain the magnetic field s…