Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Euchner, F."'
According to the fossil-field hypothesis magnetic fields are remnants of the previous stages of evolution. However, population synthesis calculations are unable to reproduce the magnetic white dwarf (MWD) sample without binary interaction or inclusio
Externí odkaz:
http://arxiv.org/abs/1304.7171
We model the structure of the surface magnetic fields of the hydrogen-rich white dwarfs in the SDSS. We have calculated a grid of state-of-the-art theoretical optical spectra of hydrogen-rich magnetic white dwarfs with magnetic field strengths betwee
Externí odkaz:
http://arxiv.org/abs/0907.2372
The magnetic fields of the accreting white dwarfs (WDs) in magnetic cataclysmic variables (mCVs) determine the accretion geometries, the emission properties, and the secular evolution of these objects. We determine the structure of the surface magnet
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610804
Aims: We analyse the magnetic field geometry of the magnetic DA white dwarf PG 1015+014 with our Zeeman tomography method. Methods: This study is based on rotation-phase resolved optical flux and circular polarization spectra of PG 1015+014 obtained
Externí odkaz:
http://arxiv.org/abs/astro-ph/0602112
We report time-resolved optical flux and circular polarization spectroscopy of the magnetic DA white dwarf HE 1045-0908 obtained with FORS1 at the ESO VLT. Considering published results, we estimate a likely rotational period of Prot ~ 2.7 h, but can
Externí odkaz:
http://arxiv.org/abs/astro-ph/0507631
We have applied the method of Zeeman tomography to analyze the surface magnetic field structures of the white dwarfs PG 1015+014 and HE 1045-0908 from spin-phase resolved flux and circular polarization spectra obtained with FORS1 at the ESO VLT. We f
Externí odkaz:
http://arxiv.org/abs/astro-ph/0410199
We have started a systematic study of the field topologies of magnetic single and accreting white dwarfs using Zeeman tomography. Here we report on our analysis of phase-resolved flux and circular polarization spectra of the magnetic cataclysmic vari
Externí odkaz:
http://arxiv.org/abs/astro-ph/0410144
We report on the progress of the development of CVcat, an interactive catalogue on Cataclysmic Variables, which is the first application based on AstroCat, a general framework for the installation and maintenance of web-based interactive astronomical
Externí odkaz:
http://arxiv.org/abs/astro-ph/0312063
Publikováno v:
Astron.Astrophys. 404 (2003) 1159-1164
CVcat is a database that contains published data on cataclysmic variables and related objects. Unlike in the existing online sources, the users are allowed to add data to the catalogue. The concept of an ``open catalogue'' approach is reviewed togeth
Externí odkaz:
http://arxiv.org/abs/astro-ph/0304517
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 spectra. An optimization code based on an evolutionary strategy is used to f
Externí odkaz:
http://arxiv.org/abs/astro-ph/0303336