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astro-ph1997
BLR sizes and the X-ray spectrum in AGN
Amri Wandel, Thomas Boller
Recent ROSAT studies of narrow-line Seyfert 1 galaxies revealed these objects (with FWHM ) generally show steeper soft X-ray spectra than broad line Seyfert…
astro-ph1997
Spectral Dependence of the Broad Emission-Line Region in AGN
Amri Wandel
We derive a theoretical relation between , the size of the broad-emission-line region of active galactic nuclei, and the observed soft X-ray luminosity and spectrum. We sh…
astro-ph1997
Secondary Accceleration of Cosmic Rays by Supernova Shocks
Amri Wandel
In the common model supernova shock-acceleration of cosmic rays there are two open questions: 1. where does the high energy cosmic rays below the knee (10 Gev) come from,…