*INTÉZETI SZEMINÁRIUM*

Elo~adó: *Zsargó János* (Escuela Superiora de Fisica y Matematica, 
Instituto Politecnico Nacional, Mexikóváros)

Elo~adás címe: *The clumped winds of Hot, Luminous Stars and their True 
Mass-loss Rates *

Kivonat:
The high luminosities of massive stars drive strong stellar winds, 
through line scattering of the star's continuum radiation. This talk 
briefly reviews the dynamics of such line driving, and how the 
Line-Deshadowing Instability leads to a complicated density-structure 
(clumping) in the wind. I will also review how this clumping affects the 
interpretation of the observational diagnostics, like X-ray emission 
lines. I conclude the talk with a discussion on how we can use 
high-resolution X-ray observations to determine accurate mass-loss rates.

Elo~adás ido~pontja: *2013. január 17. (csütörtök), 14:00**
*
Elo~adás helyszíne: MTA CSFK CSI Elo~adóterme
1121 Budapest, Konkoly T. M. út 15-17.