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http://hdl.handle.net/20.500.12386/26606
Titolo: | Evidence for a radiatively driven disc-wind in PDS 456? | Autori: | Matzeu, G. A. Reeves, J. N. BRAITO, Valentina NARDINI, EMANUELE McLaughlin, D. E. Lobban, A. P. Tombesi, Francesco Costa, M. T. |
Data pubblicazione: | 2017 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Numero: | 472 | Fascicolo: | 1 | Da pagina:: | L15 | Abstract: | We present a newly discovered correlation between the wind outflow velocity and the X-ray luminosity in the luminous (L<SUB>bol</SUB> ∼ 10<SUP>47</SUP>erg s<SUP> - 1</SUP>) nearby (z = 0.184) quasar PDS 456. All the contemporary XMM-Newton, NuSTAR and Suzaku observations from 2001-2014 were revisited and we find that the centroid energy of the blueshifted Fe K absorption profile increases with luminosity. This translates into a correlation between the wind outflow velocity and the hard X-ray luminosity (between 7 and 30 keV) where we find that v_w/c∝ L_{7-30}^{γ } where γ = 0.22 ± 0.04. We also show that this is consistent with a wind that is predominately radiatively driven, possibly resulting from the high Eddington ratio of PDS 456. | URI: | http://hdl.handle.net/20.500.12386/26606 | URL: | https://academic.oup.com/mnrasl/article-abstract/472/1/L15/4082837 | ISSN: | 0035-8711 | DOI: | 10.1093/mnrasl/slx129 | Bibcode ADS: | 2017MNRAS.472L..15M | Fulltext: | open |
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