XMM-Newton observation of the lockman hole. I. The X-ray data

G. Hasinger, B. Altieri, M. Arnaud, X. Barcons, J. Bergeron, H. Brunner, M. Dadina, K. Dennerl, P. Ferrando, A. Finoguenov, R. E. Griffiths, Y. Hashimoto, F. A. Jansen, D. H. Lumb, K. O. Mason, S. Mateos, R. G. McMahon, T. Miyaji, F. Paerels, M. J. PageA. F. Ptak, T. P. Sasseen, N. Scharte, G. P. Szokoly, J. Trümper, M. Turner, R. S. Warwick, M. G. Watson

研究成果: 雜誌貢獻通訊期刊論文同行評審

287 引文 斯高帕斯(Scopus)


We report on the first deep X-ray survey with the XMM-Newton observatory during the performance verification phase. The field of the Lockman Hole, one of the best studied sky areas over a very wide range of wavelengths, has been observed. A total of ∼100 ksec good exposure time has been accumulated. Combining the images of the European Photon Imaging Camera (EPIC) detectors we reach a flux limit of 0.31, 1.4 and 2.4 10-15 erg cm-2 s-1, respectively in the 0.5-2, 2-10, and 5-10 keV band. Within an off-axis angle of 10 arcmin we detect 148, 112 and 61 sources, respectively. The log(N)-log(S) relation in the three bands is compared with previous results. In particular in the 5-10 keV band these observations present the deepest X-ray survey ever, about a factor 20 more sensitive than the previous BeppoSAX observations. Using X-ray spectral diagnostics and the set of previously known, spectroscopically identified ROSAT sources in the field, the new sources can be classified. XMM-Newton detects a significant number (∼40%) of X-ray sources with hard, probably intrinsically absorbed X-ray spectra, confirming a prediction of the population synthesis models for the X-ray background.

頁(從 - 到)L45-L50
期刊Astronomy and Astrophysics
出版狀態已發佈 - 2001 一月

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

指紋 深入研究「XMM-Newton observation of the lockman hole. I. The X-ray data」主題。共同形成了獨特的指紋。