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2MASS J0516288+260738: Discovery of the first eclipsing late K + Brown dwarf binary system
(2003-11)
We report the discovery of a new eclipsing system less than one arcminute south of the pulsating DB white dwarf KUV05134+2605. The object could be identified with the point source 2MASSJ0516288+260738 published by the Two ...
Binaries discovered by the SPY project. III. HE 2209-1444: A massive, short period double degenerate
(2003-11)
In the course of our search for double degenerate (DD) binaries as potential progenitors of type Ia supernovae with the UVES spectrograph at the ESO VLT (ESO SN Ia Progenitor surveY – SPY) we discovered HE2209−1444 to be ...
3D kinematics of white dwarfs from the SPY project
(2003-03)
We present kinematics of a sample of 107 DA white dwarfs from the SPY project (ESO SN Ia Progenitor surveY) and discuss kinematic criteria for a distinction of thin disk, thick disk, and halo populations. This is the first ...
SPY - the ESO Supernovae type Ia Progenitor survey
(2003)
Supernovae (SNe) mark the violent termination of a star’s life in an explosion. They are classified according to their light curve as type I or II, with the type I SNe producing very similar light curves, while the SNe ...
NLTE Spectral Analysis of Iron Group Elements in the Hot Subluminous O-star BD+28 4211
(Astronomical Society of the Pacific, 2003)
An analysis of UV spectra of BD+28circ4211 obtained with the STIS spectrograph onboard the HST is presented. The spectral analysis is based on NLTE model calculation, which deal with the lineblanketing of iron group elements ...