122 citations · 346 across the 4 of their papers we have counts for
4 papers
The ESO supernovae type Ia progenitor survey (SPY)
R. Napiwotzki, C. A. Karl, T. Lisker +13
Close double degenerate binaries are one of the favoured progenitor channels for type Ia supernovae, but it is unclear how many suitable systems there are in the Galaxy. We report…
Binaries discovered by the SPY project. IV. Five single-lined DA double white dwarfs
G. Nelemans, R. Napiwotzki, C. Karl +8
We present results from our ongoing follow-up observations of double white dwarf binaries detected in the ESO SN Ia Progenitor SurveY (SPY). We discuss our observing strategy and d…
Search for progenitors of supnernovae type Ia with SPY
R. Napiwotzki, N. Christlieb, H. Drechsel +13
We have started a large survey for double degenerate (DD) binaries as potential progenitors of type Ia supernovae with the UVES spectrograph at the ESO VLT (ESO SN Ia Progenitor su…
The Quiescent Spectrum of the AM CVn star CP Eri
Paul J. Groot, Gijs Nelemans, Danny Steeghs +1
We used the 6.5m MMT to obtain a spectrum of the AM CVn star CP Eri in quiescence. The spectrum is dominated by He I emission lines, which are clearly double peaked with a peak-to-…