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Home All issues A&A, 394 3 (2002) 835-849 Article references

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Cited article:

High precision X-ray log N – log S distributions: implications for the obscured AGN population

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Astronomy & Astrophysics 492 (1) 51 (2008)
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AChandraLook at Five of the Broadest Double‐Peaked Balmer Line Emitters

Iskra V. Strateva, W. N. Brandt, Michael Eracleous and Gordon Garmire
The Astrophysical Journal 687 (2) 869 (2008)
https://doi.org/10.1086/592143

Can photo-ionisation explain the decreasing fraction of X-ray obscured AGN with luminosity?

A. Akylas and I. Georgantopoulos
Astronomy & Astrophysics 479 (3) 735 (2008)
https://doi.org/10.1051/0004-6361:20077791

Most Hard‐X‐Ray–Selected Quasars in the Chandra Deep Fields are Obscured

J. X. Wang, P. Jiang, Z. Y. Zheng, et al.
The Astrophysical Journal 657 (1) 95 (2007)
https://doi.org/10.1086/510766

The XMM-SSC survey of hard-spectrum XMM–Newton sources – I. Optically bright sources

M. J. Page, I. Lehmann, Th. Boller, et al.
Monthly Notices of the Royal Astronomical Society 378 (4) 1335 (2007)
https://doi.org/10.1111/j.1365-2966.2007.11857.x

XMM-Newton and Chandra measurements of the AGN intrinsic absorption: dependence on luminosity and redshift

A. Akylas, I. Georgantopoulos, A. Georgakakis, S. Kitsionas and E. Hatziminaoglou
Astronomy & Astrophysics 459 (3) 693 (2006)
https://doi.org/10.1051/0004-6361:20054632

XMM-Newton observations of the Lockman Hole IV: spectra of the brightest AGN

S. Mateos, X. Barcons, F. J. Carrera, et al.
Astronomy & Astrophysics 444 (1) 79 (2005)
https://doi.org/10.1051/0004-6361:20052881

XMM-Newtonspectra of hard spectrumRosatAGN: X-ray absorption and optical reddening

F. J. Carrera, M. J. Page and J. P. D. Mittaz
Astronomy & Astrophysics 420 (1) 163 (2004)
https://doi.org/10.1051/0004-6361:20035683

The XMM-Newton Bright Serendipitous Survey: First Extragalactic Results

Tommaso Maccacaro, Roberto Della Ceca, Valentina Braito, et al.
Astrophysics and Space Science 294 (1-2) 89 (2004)
https://doi.org/10.1007/s10509-004-4026-2

The XMM-NewtonHBS28 sample: Studying the obscuration in hard X-ray selected AGNs

A. Caccianiga, P. Severgnini, V. Braito, et al.
Astronomy & Astrophysics 416 (3) 901 (2004)
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Powerful, obscured active galactic nuclei among X-ray hard, optically dim serendipitousChandrasources

P. Gandhi, C. S. Crawford, A. C. Fabian and R. M. Johnstone
Monthly Notices of the Royal Astronomical Society 348 (2) 529 (2004)
https://doi.org/10.1111/j.1365-2966.2004.07341.x

TheXMM-Newton/2dF survey - IV. The X-ray spectral properties of the hard sources

I. Georgantopoulos, A. Georgakakis, A. Akylas, et al.
Monthly Notices of the Royal Astronomical Society 352 (1) 91 (2004)
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Exploring the X-ray sky with the XMM-Newton bright serendipitous survey

R. Della Ceca, T. Maccacaro, A. Caccianiga, et al.
Astronomy & Astrophysics 428 (2) 383 (2004)
https://doi.org/10.1051/0004-6361:20040252

A medium-deepChandraand Subaru survey of the 13-hXMM/ROSATdeep survey area

I. M. McHardy, K. F. Gunn, A. M. Newsam, et al.
Monthly Notices of the Royal Astronomical Society 342 (3) 802 (2003)
https://doi.org/10.1046/j.1365-8711.2003.06572.x

The nature of the ultraluminous X-ray sources inside galaxies and their relation to local QSOs

G. Burbidge, E. M. Burbidge and H. Arp
Astronomy & Astrophysics 400 (2) L17 (2003)
https://doi.org/10.1051/0004-6361:20030134