An extremely hot white dwarf with a rapidly rotating K-type subgiant companion: UCAC2 46706450

UCAC2 46706450 is a late-type star with an ultraviolet (UV) excess. It was considered a candidate to establish a sample of FGK stars with white dwarf (WD) companions that can be used to test binary evolution models. To verify the WD nature of the companion, UV spectroscopy was performed by Parsons e...

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Veröffentlicht in:	arXiv.org 2020-09
Hauptverfasser:	Werner, Klaus, Reindl, Nicole, Löbling, Lisa, Pelisoli, Ingrid, Schaffenroth, Veronika, Rebassa-Mansergas, Alberto, Puji Irawati, Ren, Juanjuan
Format:	Artikel
Sprache:	eng
Schlagworte:	Abundance Atmospheric models Binary stars Companion stars Cool stars Diffusion Light curve Luminosity Physics - Solar and Stellar Astrophysics Spectral energy distribution Spectrum analysis Stellar rotation Stellar winds White dwarf stars
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