SIMBAD references

2002ApJ...575..137T - Astrophys. J., 575, 137-144 (2002/August-2)

Spectral energy distributions of flat-spectrum radio quasars observed with BeppoSAX.

TAVECCHIO F., MARASCHI L., GHISELLINI G., CELOTTI A., CHIAPPETTI L., COMASTRI A., FOSSATI G., GRANDI P., PIAN E., TAGLIAFERRI G., TREVES A. and SAMBRUNA R.

Abstract (from CDS):

We report the BeppoSAX observations of six flat-spectrum radio quasars. Three of them have a clear detection up to 100 keV with the PDS instrument. For four objects the X-ray spectrum is satisfactorily fitted by a power-law continuum with Galactic absorption. QSO 2251+158 shows the presence of absorption higher than the Galactic value, while the spectrum of the source QSO 0208-512 shows a complex structure, with evidence of absorption at low energy. We construct the spectral energy distributions adding historical data to the broadband X-ray spectra obtained with BeppoSAX and reproduce them with a one-zone synchrotron-inverse Compton model (including both synchrotron self-Compton and external Compton). The implications are briefly discussed.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Quasars: General - quasars: individual (QSO 0208-512, QSO 0521-365) - Galaxies: Quasars: Individual: Alphanumeric: QSO 1641+399 - Galaxies: Quasars: Individual: Alphanumeric: QSO 2223-052 - quasars: individual (QSO 2243-123, QSO 2251+158) - Radiation Mechanisms: Nonthermal - X-Rays: Galaxies

Simbad objects: 13

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