The log(N)-log(S) and the Broadband Properties of the Sources in the HELLAS2XMM Survey

Details The log(N)-log(S) and the Broadband Properties of the Sources in the HELLAS2XMM Survey The log(N)-log(S) and the Broadband Properties of the Sources in the HELLAS2XMM Survey

2002-01-31

arxiv.org/abs/astro-ph/0201525v1

Astronomy and Astrophysics

Astrophysics

4 pages (including 5 Figures), to appear in the Proceedings of the Symposium `New Visions of the X-ray Universe in the XMM-New

Scientific paper

We present the first results from an XMM-Newton serendipitous medium-deep survey, which covers nearly three square degrees. We show the log(N)-log(S) distributions for the 0.5-2, 2-10 and 5-10 keV bands, which are found to be in good agreement with previous determinations and with the predictions of XRB models. In the soft band we detect a break at fluxes around 5x10^-15 cgs. In the harder bands, we fill in the gap at intermediate fluxes between deeper Chandra and XMM-Newton observations and shallower BeppoSAX and ASCA surveys. Moreover, we present an analysis of the broad-band properties of the sources.

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