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Browsing by Author Lehmann, I.
Showing results 1 to 4 of 4
Rights | Preview | Issue Date | Title | Author(s) | Type |
openAccess |  | 2004 | Exploring the X-ray sky with the XMM-Newton bright serendipitous survey | Della Ceca, R.; Maccacaro, T.; Caccianiga, A.; Severgnini, P.; Braito, V.; Barcons, Xavier CSIC ORCID ; Carrera, Francisco J. CSIC ORCID CVN ; Watson, M. G.; Tedds, J. A.; Brunner, H.; Lehmann, I.; Page, M. J.; Lamer, Georg; Schwope, A. | artículo |
openAccess |  | 2004 | The XMM-Newton HBS28 sample: Studying the obscuration in hard x-ray selected AGNs | Caccianiga, A.; Severgnini, P.; Braito, V.; Della Ceca, R.; Maccacaro, T.; Wolter, Anna; Barcons, Xavier CSIC ORCID ; Carrera, Francisco J. CSIC ORCID CVN ; Lehmann, I.; Page, M. J.; Saxton, R. D.; Webb, N. A. | artículo |
openAccess |  | 2007 | The XMM-SSC survey of hard-spectrum XMM-Newton sources - I. Optically bright sources | Page, M. J.; Lehmann, I.; Boller, Th.; Watson, M. G.; Dwelly, Tom; Hess, S.; Matute, Israel; Loaring, N. S.; Rosen, Simon; Ziaeepour, H.; Schwope, A.; Lamer, Georg; Carrera, Francisco J. CSIC ORCID CVN ; Tedds, J. A.; Della Ceca, R.; Severgnini, P.; McMahon, Richard G.; Yuan, W. | artículo |
openAccess |  | 2005 | XMM-Newton observations of the Lockman Hole IV: spectra of the brightest AGN | Mateos, Silvia CSIC ORCID ; Barcons, Xavier CSIC ORCID ; Carrera, Francisco J. CSIC ORCID CVN ; Ceballos, María Teresa CSIC ORCID ; Hasinger, Günther; Lehmann, I.; Fabian, Andrew C.; Streblyanska, Alina CSIC | artículo |