30 citations · 85 across the 14 of their papers we have counts for
6 papers · 1 filter
Abundance analysis of benchmark M dwarfs
T. Olander, U. Heiter, N. Piskunov +2
Abundances of M dwarfs, being the most numerous stellar type in the Galaxy, can enhance our understanding of planet formation processes. They can also be used to study the chemical…
Comparative study of small-scale magnetic fields on Boo A using optical and near-infrared spectroscopy
A. Hahlin, O. Kochukhov, P. Chaturvedi +12
Magnetic field investigations of Sun-like stars, using Zeeman splitting of non-polarised spectra, in the optical and H-band have found significantly different magnetic field streng…
Are the surface abundance structures stable in rapidly rotating Ap star 56 Ari?
I. Potravnov, N. Piskunov, T. Ryabchikova
The surface magnetic and abundance inhomogeneities in chemically peculiar Ap/Bp stars are coupled and responsible for their rotationally modulated variability. Within the framework…
A conclusive non-detection of magnetic field in the Am star o Peg with high-precision near-infrared spectroscopy
O. Kochukhov, A. M. Amarsi, A. Lavail +10
The A-type metallic-line (Am) stars are typically considered to be non-magnetic or possessing very weak sub-G magnetic fields. This view has been repeatedly challenged in the liter…
Doppler imaging of a southern ApSi star HD 152564
I. Potravnov, T. Ryabchikova, N. Piskunov +2
We present the results of the spectroscopic study of a chemically peculiar star HD 152564. Using medium-resolution () observations obtained with the HRS spectrograph mount…
Rotation, magnetism, and metallicity of M dwarf systems
D. Shulyak, A. Seifahrt, A. Reiners +2
Close M-dwarf binaries and higher multiples allow the investigation of rotational evolution and mean magnetic flux unbiased from scatter in inclination angle and age since the orie…