405 citations · 2.2k across the 54 of their papers we have counts for
54 papers
VPNEP: Detailed characterization of TESS targets around the Northern Ecliptic Pole
K. G. Strassmeier, M. Weber, D. Gruner +13
We embarked on a high-resolution optical spectroscopic survey of bright Transiting Exoplanet Survey Satellite (TESS) stars around the Northern Ecliptic Pole (NEP), dubbed the Vatic…
The solar photospheric silicon abundance according to CO5BOLD: Investigating line broadening, magnetic fields, and model effects
S. A. Deshmukh, H. -G. Ludwig, A. Kučinskas +5
In this work, we present a photospheric solar silicon abundance derived using CO5BOLD model atmospheres and the LINFOR3D spectral synthesis code. Previous works have differed in th…
On the lithium abundance of the visual binary components Boo A (G8V) and Boo B (K5V)
Klaus G. Strassmeier, Matthias Steffen
A spectroscopic investigation of the lithium resonance doublet in Boo A and Boo B in terms of both abundance and isotopic ratio is presented. We obtained new =130\,000 s…
Barium lines in high-quality spectra of two metal-poor giants in the Galactic halo
G. Cescutti, C. Morossi, M. Franchini +9
Context. Theoretical results showed the possibility that neutron capture elements were produced in the early Universe by two different sources: a frequent s-process source hosted b…
3D spectroscopic analysis of helium-line white dwarfs
Elena Cukanovaite, Pier-Emmanuel Tremblay, Pierre Bergeron +3
In this paper, we present corrections to the spectroscopic parameters of DB and DBA white dwarfs with -10.0 < log(H/He) < -2.0, 7.5 < log(g) < 9.0 and 12000 K < T_eff < 34000 K, ba…
Probing the atmosphere of HD189733b with the Na I and K I lines
E. Keles, D. Kitzmann, M. Mallonn +12
High spectral resolution transmission spectroscopy is a powerful tool to characterize exoplanet atmospheres. Especially for hot Jupiters, this technique is highly relevant, due to…