78 citations · 266 across the 11 of their papers we have counts for
13 papers
Asteroseismology of overmassive, undermassive, and potential past members of the open cluster NGC6791
K. Brogaard, T. Arentoft, J. Jessen-Hansen +1
We perform an asteroseismic investigation of giant stars in the field of NGC 6791 with previous indications of atypical evolution. The analysis makes use of observations from Keple…
Age and helium content of the open cluster NGC 6791 from multiple eclipsing binary members. III. Constraints from a subgiant
K. Brogaard, F. Grundahl, E. L. Sandquist +18
Models of stellar structure and evolution can be constrained using accurate measurements of the parameters of eclipsing binary members of open clusters. Multiple binary stars provi…
Observing the changing surface structures of the active K giant sigma Gem with SONG
H. Korhonen, R. M. Roettenbacher, S. Gu +6
Aims: We aim to study the spot evolution and differential rotation in the magnetically active cool K-type giant star sigma Gem from broadband photometry and continuous spectroscopi…
Properties of the Hyades, the eclipsing binary HD27130, and the oscillating red giant Tau
K. Brogaard, E. Pakštienė, F. Grundahl +21
Eclipsing binary stars allow derivation of accurate and precise masses and radii. When they reside in star clusters, properties of even higher precision, along with additional info…
Extremely precise age and metallicity of the open cluster NGC 2506 using detached eclipsing binaries
E. Knudstrup, F. Grundahl, K. Brogaard +10
Accurate stellar parameters of stars in open clusters can help constrain models of stellar structure and evolution. Here we wish to determine the age and metallicity content of the…
Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS: resolving the retired A-star mass controversy
Sai Prathyusha Malla, Dennis Stello, Daniel Huber +12
The study of planet occurrence as a function of stellar mass is important for a better understanding of planet formation. Estimating stellar mass, especially in the red giant regim…