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The High Energy Resolution View of Ionized Absorbers in AGN
F. Nicastro, F. Fiore, G. Matt
A number of emission and absorption features are expected to be visible in high energy resolution X-ray spectra of type 1 AGN with ionized gas along the line of sight (so called "w…
The quiescent state broadband X-ray spectrum and variability of Mkn421
M. Guainazzi, G. Vacanti, A. Malizia +3
The BL Lac object Mkn~421 was observed three times by the X-ray observatory BeppoSAX in consecutive days during 1997 April and May. The source was in a quiescent state, with an ave…
Total Widths And Slopes From Complex Regge Trajectories
S. Filipponi, G. Pancheri, Y. Srivastava
Maximally complex Regge trajectories are introduced for which both Re and Im grow as ( small and positive). Our expression reduces to the standard real l…
BVRcIc photometry of GRB970508 optical remnant: May-August, 1997
V. V. Sokolov, A. I. Kopylov, S. V. Zharikov +3
We present the results of photometric observations of the variable optical source associated to the remnant of the gamma-ray burst GRB970508 performed at SAO RAS (Russia) from May…