activity
20022026
most citedIdentification of neon in FUSE and VLT spectra of extremely hot hydrogen-deficient (pre-) white dwarfs

56 citations · 503 across the 21 of their papers we have counts for

collaborators

20 papers

astro-ph.SR2026

Spectral evolution of hot hybrid white dwarfs: II. Photometry

Semih Filiz, Nicole Reindl, David Jones +4

We present a photometric analysis of 19 DA and 13 DAO white dwarfs (WDs) with effective temperatures exceeding 60 kK, building on the spectral analysis reported in the first paper…

astro-ph.SR2024

Spectral evolution of hot hybrid white dwarfs I. Spectral analysis

Semih Filiz, Klaus Werner, Thomas Rauch +1

Hydrogen-rich white dwarfs (WDs) comprise the majority of the WD population, but are only rarely found at the very hot end of the WD cooling sequence. A small subgroup that exhibit…

astro-ph.SR2024★ 11 cited

A spectroscopic and kinematic survey of fast hot subdwarfs

S. Geier, U. Heber, A. Irrgang +19

Hot subdwarfs (sdO/B) are the stripped helium cores of red giants formed by binary interactions. Close hot subdwarf binaries with massive white dwarf companions have been proposed…

astro-ph.SR2024

Spectral analysis of three hot subdwarf stars: EC 11481-2303, Feige 110, and PG 0909+276: A critical oscillator-strength evaluation for iron-group elements

A. Landstorfer, T. Rauch, K. Werner

For the precise spectral analysis of hot stars, advanced stellar-atmosphere models that consider deviations from the local thermodynamic equilibrium are mandatory. This requires ac…

astro-ph.SR2023

The photospheres of the hottest fastest stars in the Galaxy

Klaus Werner, Nicole Reindl, Thomas Rauch +2

We perform nonlocal thermodynamic equilibrium (NLTE) model atmosphere analyses of the three hottest hypervelocity stars (space velocities between 1500-2800 km s) k…

astro-ph.SR2018★ 32 cited

Spectral analysis of the extremely hot DA white dwarf PG0948+534

K. Werner, T. Rauch, N. Reindl

There is a striking paucity of hydrogen-rich (DA) white dwarfs (WDs) relative to their hydrogen-deficient (non-DA) counterparts at the very hot end of the WD cooling sequence. The…