369 citations
- Uniwersytet Komisji Edukacji Narodowej w KrakowiePL40 papers
- Nordic Optical TelescopeES34 papers
- KU LeuvenBE28 papers
- Centre National de la Recherche ScientifiqueFR23 papers
- Iowa State UniversityUS23 papers
- Osservatorio Astrofisico di TorinoIT22 papers
- California Institute of TechnologyUS21 papers
- Ames Research CenterUS20 papers
- Nicolaus Copernicus Astronomical CenterPL20 papers
- Aarhus UniversityDK18 papers
- University of ValparaísoCL17 papers
- Center for Astrophysics Harvard & SmithsonianUS16 papers
6 papers · 2 filters
KIC 10001893: A pulsating sdB star with multiple trapped modes
M. Uzundag, A. S. Baran, R. H. Østensen +3
KIC 10001893 is a V1093 Her type pulsating subdwarf-B star, which was observed extensively by the Kepler spacecraft. It was a part of the survey searching for compact pulsators in…
Unravelling the baffling mystery of the ultrahot wind phenomenon in white dwarfs
Nicole Reindl, M. Bainbridge, N. Przybilla +6
The presence of ultra-high excitation (UHE) absorption lines (e.g., O VIII) in the optical spectra of several of the hottest white dwarfs poses a decades-long mystery and is someth…
The orbital period -- mass ratio relation of wide sdB+MS binaries and its application to the stability of RLOF
Joris Vos, Maja Vucković, Xuefei Chen +5
Wide binaries with hot subdwarf-B (sdB) primaries and main sequence companions are thought to form only through stable Roche lobe overflow (RLOF) of the sdB progenitor near the tip…
Discovery of two bright DO-type white dwarfs
Nicole Reindl, Stephan Geier, Roy H. Østensen
We discovered two bright DO-type white dwarfs, GALEXJ053628.3+544854 (J0536+5448) and GALEX231128.0+292935(J2311+2929), which rank among the eight brightest DO-type white dwarfs kn…
HE 0430-2457: a post merger extremely low-mass pre-white dwarf in a wide binary posing as an extreme horizontal branch star
Joris Vos, Monica Zorotovic, Maja Vučković +2
We report the discovery of HE 0430-2457, the first extremely low-mass pre-white dwarf (ELM pre-WD) in a long period binary (P = 771 +- 3 d). The spectroscopic parameters of the pri…
The First Post-Kepler Brightness Dips of KIC 8462852
Tabetha S. Boyajian, Roi Alonso, Alex Ammerman +203
We present a photometric detection of the first brightness dips of the unique variable star KIC 8462852 since the end of the Kepler space mission in 2013 May. Our regular photometr…