28 citations · 28 across the 1 of their papers we have counts for
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astro-ph2007★ 28 cited
A longer XMM-Newton look at I Zwicky 1: physical conditions and variability of the ionised absorbers
E. Costantini, L. C. Gallo, W. N. Brandt +2
We present a spectral analysis of the narrow-line Seyfert 1 galaxy I Zwicky 1, focusing on the characteristics of the ionised absorbers as observed with XMM-Newton in 2005. The sof…
astro-ph2000
BeppoSAX broad-band observations of low-redshift quasars: Spectral curvature and iron K_alpha lines
T. Mineo, F. Fiore, A. Laor +7
We present results from BeppoSAX observations of 10 low redshift quasars. The quasars are part of the Laor et al. (1997) sample of 23 optically selected PG quasars with redshift <0…