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most citedThe HELLAS2XMM 1dF survey: on the nature of high X-ray to optical flux ratio sources

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astro-ph2001

Optical identification of sources from the HELLAS2XMM survey

F. Fiore, G. Matt, F. La Franca +10

We present preliminary results on the optical identifications of sources from the High Energy Large Area Survey performed with XMM-Newton (HELLAS2XMM). This survey covers about 3 s…