Bulletin of Taras Shevchenko National University of Kyiv. Astronomy, no. 52, p. 32-35 (2015)

X-ray properties of distant radio-loud quasars from the XMM-Newton and Swift/XRT data

E. Fedorova, Ph. D.
Taras Shevchenko National University of Kyiv, Kyiv

The X-ray data of XMM-Newton and Swift/XRT observations of the sample of radio-loud quasars with the redshifts z>1 from thecross-correlation of PKS radio catalog and Veron-Veron AGN catalog are processed and analyzed. The model the reflected andabsorbed power-law spectrum with an exponential cut-off at high energies was applied to fit the main part of the spectra of thesequasars in the energy range 0.3–10 кеВ, except only gravitational lens system PKS1830-211 to which the broken power-law wasused. The mean values of the parameters over the set are: photon index Г = 1.59±0.04, high-energy cut-off EC = 77 keV, reflectionparameter R=3.2 and column density of the absorbing material NH = 4.2*1021 cm-2. All the objects of the set, except PKS2000-330,demonstrate the exponential cut-off below 100 keV in the spectrum, as it is prescribed to the RL AGNs within the spin-paradigm.

AGN, quasars, X-ray observations

Bianchin, V., Foschini, L., Ghisellin, G., Tagliaferri, G. 2009, Astron. & Astroph.,496, 2, 423
Bottacini, E., Ajello, M., Greiner, J. 2010, Astronomy & Astrophysics,509, 1
Buehler, P., Courvoisier, T. J.-L., Staubert, R., Brunner, H., Lamer, G. 2010, Astron. & Astroph., 295, 2, 309
Chartas, G. 2000, Astroph. J.,531, 1, 81
Dai, X., Mathur, S., Chartas, G., Nair, S. 2008, Astron. J.,135,1, 333
Rosa, A., Piro, L., Tramacere, A., Massaro, E. 2005, Astron. & Astroph.,438, 1, 121
Dickey, J.M., Lockman, F.J. 1990, A&A,28, 215 Donnarumma, I., Rosa, A., Vittorini, V., Miller, H.R. 2011, Astron.J. Lett.,736, 2, 30
Elvis, M., Fiore, F., Siemiginowska, A. Astroph.J., 543, 2, 545
Elvis, M., Fiore, F., Wilkes, B. 1994, Astroph. J.,422,1,60
Fang, T., Marshall, H. L., Bryan, G. L., Canizares, C. R. 2001, Astroph. J.,555, 1, 356
Ferrero, E., Brinkmann, W. 2003, Astron. & Astrophys.,402,465
Foschini, L., Ghisellini, G., Raiteri, C.M. 2006, Astron. & Astrophys.,453, 829
Garofalo, D. 2013, Advances in Astronomy,Id. 213105
Ghisselini, G., Della Ceca, R., Volonteri, M. 2010, MNRAS,405, 387
Grupe, D., Mathur, S., Wilkes, B., Elvis, M. 2004, Astron. J., 127, 1, 1
Grupe, D., Mathur, S., Wilkes, B., Osmer, P. 2006, Astron.J., 131, 55
Laurent-Mühleisen, S., Kollgaard, R., Giardullo, R. 1998, Astron. J., Supp. Series,118, 127
Magdziarz, P., Zdziarski, A.A. 1995, MNRAS,273,3, 837
Mathur, S., Nair, S. 1997, Astroph. J.,484, 1, 140
Page, K.L., Reeves, J.N., O’Brien, P.T., Turner, M.J.L. 2005, MNRAS,364, 195
Reeves, J.N., Turner, M.J.L. 2000, MNRAS,316, 234
Reeves, J.N., Turner, M.J.L., Bennie, P.J. 2001, Astron. & Astroph., 365, 116
Serlemitsos, P., Yaqoob, T., Ricker, G. 1994, PASJ,46, 3, 43
Siebert, J., Matsuoka, M., Brinkmannet, W. 1996, Astron. & Astroph.,307, 8
Yaqoob, T., George, I.M., Nandra, K. 1999, Astroph. J.,525, 9
Yuan, W., Fabian, A.C., Celotti, A. 2005, MNRAS,358,2,432
Zickgraf, F.-J., Voges, W., Krautter, J. 1997, Astron. & Astroph.,323, 21

Full text PDF

DOI: https://doi.org/10.17721/BTSNUA.2015.52.32-35