65 citations · 232 across the 19 of their papers we have counts for
8 papers · 1 filter
A giant magnetic eruption from the asymptotic giant branch star Mira A
W. Vlemmings, M. Andriantsaralaza, B. Bojnordi Arbab +14
Mass loss during the advanced evolutionary stages of low- and intermediate-mass stars is traditionally attributed to dust-driven winds, whereas the influence of magnetic fields rem…
Molecular line polarisation from the circumstellar envelopes of Asymptotic Giant Branch stars
W. H. T. Vlemmings, B. Lankhaar, L. Velilla-Prieto
Polarisation observations of masers in the circumstellar envelopes (CSEs) around Asymptotic Giant Branch (AGB) stars have revealed strong magnetic fields. However, masers probe onl…
Polarization properties of methanol masers
Daria Dall'Olio, Wouter Vlemmings, Boy Lankhaar +1
(Abridged) Astronomical masers have been effective tools to study magnetic fields for many years. In particular, methanol can be used to probe different parts of protostars such as…
Collisional polarization of molecular ions: a signpost of ambipolar diffusion
Boy Lankhaar, Wouter Vlemmings
Magnetic fields play a role in the dynamics of many astrophysical processes, but they are hard to detect. In a partially ionized plasma, a magnetic field works directly on the ioni…
Stringent limits on the magnetic field strength in the disc of TW Hya: ALMA observations of CN polarisation
W. H. T. Vlemmings, B. Lankhaar, P. Cazzoletti +8
Despite their importance in the star formation process, measurements of magnetic field strength in proto-planetary discs remain rare. While linear polarisation of dust and molecula…
Detection of highly excited OH towards AGB stars: A new probe of shocked gas in the extended atmospheres
T. Khouri, L. Velilla-Prieto, E. De Beck +5
We report the detection and investigate the properties of high-excitation lambda-doubling line emission of hydroxyl (OH) detected towards three asymptotic giant branch (AGB) stars…