First ASCA results for high-redshift Radio-Quiet Quasars
Vignali, C. · Comastri, A. · Cappi, M. · Palumbo, G. G. C. · Matsuoka, M.
Original · EN
Here we report the X-ray spectral analysis of 5 high-redshift (z ≥ 2) radio-quiet quasars (RQQs) observed with the ASCA satellite. A simple power law with Galactic absorption model well fits the data. There is no evidence of a reflection component. The average spectral slope in the observed 0.5--10 keV energy range, < Γ> = 1.68±0.09 (dispersion σ 0.11), places the high-z objects of the present sample in the lower-Γtail of the RQQs spectral indices distribution.
English translation
This paper has no Arabic translation yet. Be the first: it takes a few seconds, and the result is stored for every future reader.