533 citations · 1.8k across the 19 of their papers we have counts for
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Activity and rotation of low mass stars in young open clusters
Andreas Seifahrt, Ansgar Reiners, Aleks Scholz +1
We present first results from a multi-object spectroscopy campaign in IC2602, the Hyades, the Pleiades, and the Coma cluster using VLT/FLAMES. We analysed the data for radial veloc…
The moderate magnetic field on the flare star Proxima Centauri
Ansgar Reiners, Gibor Basri
We report moderate magnetic flux of 450G < Bf < 750G (3sigma) on the nearby M5.5 flare star Proxima Centauri. A high resolution UVES spectrum was used to measure magnetic flux from…
Chromospheric Activity, Rotation, and Rotational Braking in M and L Dwarfs
Ansgar Reiners, Gibor Basri
We present results from a high-resolution spectroscopic survey of 45 L dwarfs, which includes both very low-mass stars and brown dwarfs. Our spectra allow us to derive a significan…
Structural and compositional properties of brown dwarf disks: the case of 2MASS J04442713+2512164
H. Bouy, N. Huelamo, C. Pinte +15
In order to improve our understanding of substellar formation, we have performed a compositional and structural study of a brown dwarf disk. We present the result of photometric, s…
Follow-up observations of binary ultra-cool dwarfs
H. Bouy, E. L. Martin, W. Brandner +12
Astrometric observations of resolved binaries provide estimates of orbital periods and will eventually lead to measurement of dynamical masses. Only a few very low mass star and br…