Evidence for a large fraction of compton-thick quasars at high redshift

Monthly Notices of the Royal Astronomical Society: Letters

Volumn 379, Issue 1, 2007, Pages

  Martínez Sansigre, Alejo ^a,b   Rawlings, Steve ^a   Bonfield, David G ^a   Mateos, Silvia ^c   Simpson, Chris ^d   Watson, Mike ^c   Almaini, Omar ^e   Foucaud, Sébastien ^e   Sekiguchi, Kazuhiro ^f   Ueda, Yoshihiro ^g  

^a UNIVERSITY OF OXFORD   (United Kingdom)

^b MAX PLANCK INSTITUT FÜR ASTRONOMIE   (Germany)

^c UNIVERSITY OF LEICESTER   (United Kingdom)

^d LIVERPOOL JOHN MOORES UNIVERSITY   (United Kingdom)

^e UNIVERSITY OF NOTTINGHAM   (United Kingdom)

^f NATIONAL ASTRONOMICAL OBSERVATORY OF JAPAN   (Japan)

^g KYOTO UNIVERSITY   (Japan)

Author keywords

Galaxies: active; Galaxies: nuclei; Quasars: general; X rays: galaxies

Indexed keywords

EID: 40249095222     PISSN: 17453933     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1745-3933.2007.00323.x     Document Type: Letter

References (25)

1. Alexander D. M., Chartas G., Bauer F. E., Brandt W. N., Simpson C., Vignali C., 2005, MNRAS, 357, L16
2. Alonso-Herrero A. et al., 2006, ApJ, 640, 167
3. Brandt W. N., Hasinger G., 2005, ARA&A, 43, 827
4. Bruzual G., Charlot S., 2003, MNRAS, 344, 1000
5. Cole S. et al., 2001, MNRAS, 326, 255
6. Coleman G. D., Wu C.-C., Weedman D. W., 1980, ApJS, 43, 393
7. Condon J. J., 1992, ARA&A, 30, 575
8. Donley J. L., Rieke G. H., Rigby J. R., Pérez-González P. G., 2005, ApJ, 634, 169
9. Dwelly T., Page M. J., 2006, MNRAS, 372, 1755
10. Elvis M. et al., 1994, ApJS, 95, 1
11. Gilli R., Comastri A., Hasinger G., 2007, A&A, 463, 79
12. Jeffreys H., 1961, Theory of Probability. Oxford Univ. Press, Oxford
13. Martínez-Sansigre A., Rawlings S., Lacy M., Fadda D., Marleau F. R., Simpson C., Willott C. J., Jarvis M. J., 2005, Nat, 436, 666
14. Martínez-Sansigre A., Rawlings S., Lacy M., Fadda D., Jarvis M.J., Marleau F. R., Simpson C., Willott C. J., 2006a, MNRAS, 370, 1479
15. Martínez-Sansigre A., Rawlings S., Garn T., Green D. A., Alexander P., Klöckner H.-R., Riley J. M., 2006b, MNRAS, 373, L80
16. Pei Y. C., 1992, ApJ, 395, 130
17. Polletta M. D. C. et al., 2006, ApJ, 642, 673
18. Risaliti G., Maiolino R., Salvati M., 1999, ApJ, 522, 157
19. Siebenmorgen R., Kruegel E., 2007, A&A, 461, 445
20. Simpson C. et al., 2006, MNRAS, 372, 741
21. Sivia D. S., 1996, Data Analysis. A Bayesian Tutorial. Oxford Univ. Press, Oxford
22. Surace J. A. et al., 2005, BAAS, 37, 1246
23. Warren S. J. et al., 2007, MNRAS, 375, 213
24. Watanabe C., Ohta K., Akiyama M., Ueda Y., 2004, ApJ, 610, 128
25. Wilman R. J., Fabian A. C., 1999, MNRAS, 309, 862