TY - JOUR AU - Georgakakis, A. AU - Rowan-Robinson, M. AU - Nandra, K. AU - Digby-North, J. AU - Pérez González, Pablo Guillermo AU - Barro, G. PY - 2010 DO - 10.1111/j.1365-2966.2010.16727.x SN - 0035-8711 UR - https://hdl.handle.net/20.500.14352/45103 T2 - Monthly notices of the Royal Astronomical Society AB - We explore the nature of Infrared Excess sources (IRX), which are proposed as candidates for luminous [L_X(2–10 keV) > 10^43 erg s^−1] Compton thick (NH > 2 × 1024 cm−2) QSOs at z≈ 2. Lower redshift, z≈ 1, analogues of the distant IRX population are... LA - eng M2 - 420 PB - Wiley KW - Active galactic nuclei KW - Dust-obscured galaxies KW - Deep-field-North KW - Extended groth strip KW - Similar-to 2 KW - Spitzer midinfrared spectroscopy KW - Spectral energy-distributions KW - Star-forming galaxies KW - XMM-Newton KW - Photometric redshifts TI - Infrared Excess sources: Compton thick QSOs, low-luminosity Seyferts or starbursts? TY - journal article VL - 406 ER -