50 citations · 109 across the 7 of their papers we have counts for
7 papers
How interacting winds shape the mechanical feedback of massive star clusters over millions of years
Thibault Vieu, Lucia Härer, Brian Reville
In recent years, massive star cluster environments have proved to be bright sources of very-high energy gamma-rays, in particular young clusters which are powered by the winds inte…
Stellar-wind feedback and magnetic fields around young compact star clusters: 3D MHD simulations
Lucia Härer, Thibault Vieu, Brian Reville
Context: The environments of young star clusters are shaped by the interactions of the powerful winds of massive stars, and their feedback on the cluster birth cloud. Several such…
Hydrodynamic simulation of Cygnus OB2: the absence of a cluster wind termination shock
Thibault Vieu, Cormac J. K. Larkin, Lucia Härer +3
We perform a large-scale hydrodynamic simulation of a massive star cluster whose stellar population mimics that of the Cygnus OB2 association. The main-sequence stars are first sim…
On the inefficiency of particle re-acceleration mechanisms in the cores of massive stellar clusters
Thibault Vieu, Lucia Härer, Brian Reville
We consider scenarios for non-thermal particle acceleration and re-acceleration in the central cores of compact massive star clusters, aided by insights from high resolution hydrod…
Stellar wind variability in Cygnus X-1 from high-resolution excess variance spectroscopy with Chandra
Lucia K. Härer, Michael L. Parker, Ileyk El Mellah +5
Stellar winds of massive stars are known to be driven by line absorption of UV photons, a mechanism which is prone to instabilities, causing the wind to be clumpy. The clumpy struc…
A deep spectromorphological study of the -ray emission surrounding the young massive stellar cluster Westerlund 1
F. Aharonian, H. Ashkar, M. Backes +156
Young massive stellar clusters are extreme environments and potentially provide the means for efficient particle acceleration. Indeed, they are increasingly considered as being res…
X-ray emission from magnetized neutron star atmospheres at low mass accretion rates. I. Phase-averaged spectrum
E. Sokolova-Lapa, M. Gornostaev, J. Wilms +12
Recent observations of X-ray pulsars at low luminosities allow, for the first time, to compare theoretical models for the emission from highly magnetized neutron star atmospheres a…