122 citations · 676 across the 26 of their papers we have counts for
9 papers · 1 filter
KBS 13 -- a Rare Reflection Effect sdB Binary with an M Dwarf Secondary
B. -Q. For, H. Edelmann, E. M. Green +3
We report preliminary VRI differential photometric and spectroscopic results for KBS 13, a recently discovered non-eclipsing sdB+dM system. Radial velocity measurements indicate an…
The peculiar sdB NGC6121-V46: A low-mass double degenerate ellipsoidal variable in a globular cluster
S. J. O'Toole, R. Napiwotzki, U. Heber +4
The variable sdB known as V46 in the globular cluster M4 has remained enigmatic since its discovery almost 10 years ago. We present here radial velocity measurements obtained from…
On the most metal-poor PN and its binary central star
R. Napiwotzki, G. Tovmassian, M. G. Richer +5
PN G135.9+55.9 is the most metal-poor PN known in our Galaxy. The central star resides in a short-period binary system with a compact component, probably a white dwarf. We describe…
2MASSJ0516288+260738: Discovery of the first eclipsing late K + Brown dwarf system?
S. L. Schuh, G. Handler, H. Drechsel +22
We report the discovery of a new eclipsing system less than one arcminute south of the pulsating DB white dwarf KUV 05134+2605. The object could be identified with the point source…
Search for double degenerate progenitors of supernovae type Ia with SPY
R. Napiwotzki, N. Christlieb, H. Drechsel +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 (SN Ia Progenitor surveY -…
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…