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astro-ph2008
Using HII region spectra to probe the ionizing radiation from massive stars
S. Simón-Díaz, J. García-Rojas, G. Stasińska +1
We present some results of an on-going project aimed at studying a sample of Galactic HII regions ionized by a single massive star to test the predictions of modern generation stel…
astro-ph2004
Flare-induced fountains and buried flares in AGN
B. Czerny, R. Goosmann
We discuss the local physical changes at the surface of an AGN accretion disk after the onset of a magnetic flare. The X-ray irradiation by a flare creates a hot spot at the disk s…
astro-ph2004
Relativistic Parker winds with variable effective polytropic index
Z. Meliani, C. Sauty, K. Tsinganos +1
Spherically symmetric hydrodynamical outflows accelerated thermally in the vicinity of a compact object are studied by generalizing an equation of state with a variable effective p…