Broadband X-ray Spectra of GX 339-4 and the Geometry of Accreting Black Holes in the Hard State
(2008)
The VLT-FLAMES survey of massive stars: atmospheric parameters and rotational velocity distributions for B-type stars in the Magellanic Clouds ***
Astronomy & Astrophysics EDP Sciences 479:2 (2008) 541-555
The needle in the haystack - Where to look for more isolated cooling neutron stars
(2008)
The Compton-thick quasar at the heart of the high-redshift giant radio galaxy 6C 0905+39
ArXiv 0801.3341 (2008)
Abstract:
Our XMM-Newton spectrum of the giant, high-redshift (z=1.88) radio galaxy 6C 0905+39 shows that it contains one of the most powerful, high-redshift, Compton-thick quasars known. Its spectrum is very hard above 2 keV. The steep XMM spectrum below that energy is shown to be due to extended emission from the radio bridge using Chandra data. The nucleus of 6C 0905+39 has a column density of 3.5 (+1.4,-0.4) X 10^24 cm^-2 and absorption-corrected X-ray luminosity of 1.7 (+0.9,-0.1) X 10^45 erg/s in the 2-10 keV band. A lower redshift active galaxy in the same field, SDSS J090808.36+394313.6, may also be Compton-thick.The Compton-thick quasar at the heart of the high-redshift giant radio galaxy 6C 0905+39
(2008)