34 citations · 63 across the 6 of their papers we have counts for
6 papers
The gaseous debris disk of the white dwarf SDSS J1228+1040. HST/COS search for far-ultraviolet signatures
S. Hartmann, T. Nagel, T. Rauch +1
Gaseous and dust debris disks around white dwarfs (WDs) are formed from tidally disrupted planetary bodies. This offers an opportunity to determine the composition of exoplanetary…
Non-LTE spectral models for the gaseous debris-disk component of Ton 345
S. Hartmann, T. Nagel, T. Rauch +1
For a fraction of single white dwarfs with debris disks, an additional gaseous disk was discovered. Both dust and gas are thought to be created by the disruption of planetary bodie…
Observations and NLTE Modeling of the Gaseous Planetary Debris Disk around Ton 345
S. Hartmann, T. Nagel, T. Rauch +1
Debris disks around single white dwarfs are thought to be the remains of planetary bodies disrupted by tidal forces. Ongoing accretion of the hereby produced dust allows to detect…
Non-LTE models for the gaseous metal component of circumstellar discs around white dwarfs
S. Hartmann, T. Nagel, T. Rauch +1
Gaseous metal discs around single white dwarfs have been discovered recently. They are thought to develop from disrupted planetary bodies. Spectroscopic analyses will allow us to s…
Asymmetric Line Profiles in Spectra of Gaseous Metal Disks Around Single White Dwarfs
S. Hartmann, T. Nagel, T. Rauch +1
Metal-rich debris disks were discovered around several single DAZ and DBZ white dwarfs, which may stem from disruption of smaller rocky planetesimals. In some cases, the material i…
Asymmetric Line Profiles in Spectra of Gaseous Metal Disks Around Single White Dwarfs
S. Hartmann, T. Nagel, T. Rauch +1
Around several single DAZ and DBZ white dwarfs metal-rich disks have been observed, which are mostly believed to originate from disruption of smaller rocky planetesimals. In some c…