activity
20182026
most citedPoWR grids of non-LTE model atmospheres for OB-type stars of various metallicities

87 citations · 150 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.IM2026

Large-scale time-series spectroscopy for stellar ages

David Gruner, Sydney A. Barnes, Ansgar Reiners +16

To date, Galactic Astronomy has largely concerned itself with astrophysical processes, and with the locations, space motions and compositions of objects. Consider, for example, the…

astro-ph.SR2025★ 4 cited

First Doppler image and starspot-corrected orbit for Andromedae: A multifaceted activity analysis

Ö. Adebali, K. G. Strassmeier, I. V. Ilyin +3

We quantify the effect of starspots for the orbital elements of the spotted RS CVn binary Andromedae ( And) and present an empirical correction. The aim is to obtain a more…

astro-ph.SR2023★ 18 cited

New insights into the rotational evolution of near-solar age stars from the open cluster M67

D. Gruner, S. A. Barnes, J. Weingrill

Gyrochronology allows the derivation of ages for cool main sequence stars from their observed rotation periods and masses, or a suitable proxy of the latter. It is increasingly wel…

astro-ph.SR2023★ 7 cited

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…

astro-ph.SR2020★ 24 cited

Rotation periods for cool stars in the open cluster Ruprecht 147 (NGC 6774): Implications for gyrochronology

David Gruner, Sydney A. Barnes

Gyrochronology allows the derivation of ages for cool main sequence stars based on their observed rotation periods and masses, or a suitable proxy thereof. It is increasingly well-…

astro-ph.SR2018★ 87 cited

PoWR grids of non-LTE model atmospheres for OB-type stars of various metallicities

R. Hainich, V. Ramachandran, T. Shenar +5

The study of massive stars in different metallicity environments is a central topic of current stellar research. The spectral analysis of massive stars requires adequate model atmo…