13 citations · 13 across the 3 of their papers we have counts for
13 papers
Double degenerates and progenitors of supernovae type Ia
R. Napiwotzki, L. Yungelson, G. Nelemans +12
We report on systematic radial velocity surveys for white dwarf - white dwarf binaries (double degenerates - DDs) including SPY (ESO Supernovae Ia progenitor survey) recently carri…
Search for double degenerate progenitors of supernovae type Ia with SPY
R. Napiwotzki, H. Drechsel, U. Heber +13
We report on 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 surve…
White Dwarfs in Globular Clusters - Progenitors, Successors and the Real Thing
Sabine Moehler
I will start by discussing the evolutionary status of the white dwarf *progenitors*, the hot UV bright stars. Observations of UIT-selected UV bright stars in globular clusters sugg…
Blue horizontal branch stars in metal-rich globular clusters. II. 47 Tuc and NGC 362
S. Moehler, W. B. Landsman, B. Dorman
Atmospheric parameters (effective temperature, surface gravity) and radial velocities are derived for 12 candidate blue horizontal branch (HB) stars in the globular clusters 47 Tuc…
Hot HB stars in globular clusters - Physical parameters and consequences for theory. V. Radiative levitation versus helium mixing
S. Moehler, A. V. Sweigart, W. B. Landsman +1
Atmospheric parameters (effective temperature Teff, surface gravity log g), masses and helium abundances are derived for 42 hot horizontal branch (HB) stars in the globular cluster…
First VLT spectra of white dwarfs in a globular cluster
S. Moehler, U. Heber, R. Napiwotzki +2
We present the first spectra obtained with the Very Large Telescope for white dwarfs in a globular cluster. Estimates of atmospheric parameters are obtained and compared to evoluti…