activity
19992021
most citedNeglecting the porosity of hot-star winds can lead to underestimating mass-loss rates

204 citations · 1.3k across the 32 of their papers we have counts for

collaborators

32 papers

astro-ph.SR2021★ 33 cited

Stochastic light variations in hot stars from wind instability: Finding photometric signatures and testing against the TESS data

Jiri Krticka, Achim Feldmeier

Line-driven wind instability is expected to cause small-scale wind inhomogeneities, X-ray emission, and wind line profile variability. The instability can already develop around th…

astro-ph.SR2018★ 30 cited

Light variations due to the line-driven wind instability and wind blanketing in O stars

J. Krticka, A. Feldmeier

A small fraction of the radiative flux emitted by hot stars is absorbed by their winds and redistributed towards longer wavelengths. This effect, which leads also to the heating of…

astro-ph.SR2017★ 18 cited

Two-dimensional modeling of density and thermal structure of dense circumstellar outflowing disks

Petr Kurfürst, Achim Feldmeier, Jiří Krtička

Context. Evolution of massive stars is affected by a significant loss of mass either via (nearly) spherically symmetric stellar winds or by aspherical mass-loss mechanisms, namely…

astro-ph.HE2016★ 39 cited

Clumpy wind accretion in supergiant neutron star high mass X-ray binaries

E. Bozzo, L. Oskinova, A. Feldmeier +1

The accretion of the stellar wind material by a compact object represents the main mechanism powering the X-ray emission in classical supergiant high mass X-ray binaries and superg…

astro-ph.SR2014★ 26 cited

Time-dependent modeling of extended thin decretion disks of critically rotating stars

Petr Kurfürst, Achim Feldmeier, Jiří Krtička

During their evolution massive stars can reach the phase of critical rotation when a further increase in rotational speed is no longer possible. Direct centrifugal ejection from a…

astro-ph.SR2013

Models of extended decretion disks of critically rotating stars

Petr Kurfürst, Achim Feldmeier, Jiří Krtička

Massive stars may during their evolution reach the phase of critical rotation when the further increase in rotational speed is no longer possible. The ejection of matter in the equ…