138 citations · 576 across the 20 of their papers we have counts for
21 papers
Where are the binaries? -- Searching for blue horizontal-branch stars in binary systems in the inner Galactic Halo
R. Culpan, M. Dorsch, I. Pelisoli +14
Blue horizontal-branch (BHB) stars are evolved low-mass objects that have completed their core hydrogen burning main-sequence (MS) stage and have lost significant mass during the r…
Ancient, eclipsing, tidally-locked: A blue lurker progenitor in the population of extreme-velocity star candidates
A. Bhat, M. Dorsch, S. Geier +5
Many extreme velocity candidate stars have been found based on \textit{Gaia} astrometry, but need spectroscopic confirmation. We select late-type hypervelocity star (HVS) candidate…
Spectroscopic Observations of Four Candidates for Blue Large-Amplitude Pulsators. No BLAPs at High Galactic Latitudes
P. Pietrukowicz, M. Latour, F. Di Mille +3
We have obtained spectroscopic observations for four short-period variable objects detected in ZTF, Gaia, and Pan-STARRS (ZGP) data and classified as Blue Large-Amplitude Pulsators…
A 500 pc volume-limited sample of hot subluminous stars I. Space density, scale height, and population properties
H. Dawson, S. Geier, U. Heber +25
We present the first volume-limited sample of spectroscopically confirmed hot subluminous stars out to 500 pc, defined using the accurate parallax measurements from the {\em Gaia}…
SHOTGLAS II. MUSE spectroscopy of blue horizontal branch stars in the core of Centauri and NGC 6752
M. Latour, S. Hämmerich, M. Dorsch +5
In this work, we characterize the properties of HB stars in the GCs Cen and NGC 6752. We use dedicated model atmospheres and synthetic spectra grids computed using a hybrid LTE…
The first massive compact companion in a wide orbit around a hot subdwarf star
S. Geier, M. Dorsch, H. Dawson +5
We report the discovery of the first hot subdwarf B (sdB) star with a massive compact companion in a wide () binary system. It was discovered based on an a…