59 citations
- Czech Academy of Sciences, Astronomical InstituteCZ5 papers
- Chinese Academy of SciencesCN4 papers
- National Astronomical ObservatoriesCN3 papers
- Shaoyang UniversityCN2 papers
- China West Normal UniversityCN1 paper
- Consejo Nacional de Investigaciones Científicas y TécnicasAR1 paper
- Friedrich-Alexander-Universität Erlangen-NürnbergDE1 paper
- High Point UniversityUS1 paper
- Instituto de Astrofísica de La Plata1 paper
- Missouri State UniversityUS1 paper
- Universidad Nacional de La PlataAR1 paper
- University of GöttingenDE1 paper
5 papers
New hot subdwarf stars identified in Gaia DR2 with LAMOST DR5 spectra -- II
Zhenxin Lei, Jingkun Zhao, Péter Németh +1
388 hot subdwarf stars have been identified by using the Hertzsprung-Russell (HR) diagram built from the second data release (DR2) of the Gaia mission. By analyzing their observed…
Hot subdwarf stars observed in Gaia DR2 and LAMOST DR5
Yangping Luo, Péter Németh, Licai Deng +1
Combing Gaia DR2 with LAMOST DR5, we spectroscopically identified 924 hot subdwarf stars, among which 32 stars exhibit strong double-lined composite spectra. We measured the effect…
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…
A quantitative NLTE analysis of visual and ultraviolet spectra of four helium-rich subdwarf O stars
Markus Schindewolf, Peter Nemeth, Ulrich Heber +4
Hot subdwarfs represent a poorly understood late phase of stellar evolution. While binary evolution plays an important role for B-subdwarfs (sdB), the origin of the He dominated O-…
New hot subdwarf stars identified in Gaia DR2 with LAMOST DR5 spectra
Zhenxin Lei, Jingkun Zhao, Németh Péter +1
We selected 4593 hot subdwarf candidates from the Gaia DR2 Hertzsprung-Russell (HR) diagram. By combining the sample with LAMOST DR5, we identified 294 hot subdwarf stars, includin…