39 citations · 45 across the 3 of their papers we have counts for
8 papers · 1 filter
Inferring statistics of planet populations by means of automated microlensing searches
M. Dominik, U. G. Jorgensen, K. Horne +17
(abridged) The study of other worlds is key to understanding our own, and not only provides clues to the origin of our civilization, but also looks into its future. Rather than in…
Optimising Optimal Image Subtraction
Holger Israel, Frederic V. Hessman, Sonja Schuh
Difference imaging is a technique for obtaining precise relative photometry of variable sources in crowded stellar fields and, as such, constitutes a crucial part of the data reduc…
Zeeman tomography of magnetic white dwarfs: General method and application to EF Eridani
F. Euchner, K. Beuermann, K. Reinsch +3
We have developed a new method to derive the magnetic field distribution on the surfaces of rotating magnetic white dwarfs from phase-resolved flux and circular polarization spectr…
GRB 021004: a Massive Progenitor Star Surrounded by Shells
Bradley E. Schaefer, C. L. Gerardy, P. Hoflich +13
We present spectra of the optical transient of GRB021004 obtained with the Hobby-Eberly telescope starting 15.48, 20.31 hours, and 4.84 days after the burst and a spectrum obtained…
Zeeman tomography of magnetic white dwarfs, I. Reconstruction of the field geometry from synthetic spectra
F. Euchner, S. Jordan, K. Beuermann +2
We have computed optical Zeeman spectra of magnetic white dwarfs for field strengths between 10 and 200MG and effective temperatures between 8000 and 40000K. They form a database c…
The response of a dwarf nova disc to real mass transfer variations
M. R. Schreiber, B. T. Gaensicke, F. V. Hessman
We present simulations of dwarf nova outbursts taking into account realistic variations of the mass loss rate from the secondary. The mass transfer variation has been derived from…