activity
19972004
collaborators

10 papers

astro-ph2004

The broad-band properties of the XMM-Newton Bright Serendipitous Sources

R. Della Ceca, T. Maccacaro, A. Caccianiga +2

We present here "The XMM-Newton Bright Serendipitous Survey", a survey program conducted by the XMM-Newton Survey Science Center. In particular we discuss the main goals of this pr…

astro-ph2002

The XMM-Newton Bright Serendipitous Source Sample (XMM-Newton BSS)

R. Della Ceca, T. Maccacaro, A. Caccianiga +15

The XMM-Newton Survey Science Center is constructing a large (~1000 sources) and complete sample of bright serendipitous XMM-Newton sources at high galactic latitude, so as to allo…

astro-ph2000

The ASCA HSS: Looking for Type 2 AGN

R. Della Ceca, V. Braito, V. Beckmann +2

We will briefly discuss the X-ray spectral properties of the objects in the ASCA Hard Serendipitous Survey (HSS) sample and its present AGN contents. We also present X-ray spectros…

astro-ph2000

BeppoSAX broad-band observations of low-redshift quasars: Spectral curvature and iron K_alpha lines

T. Mineo, F. Fiore, A. Laor +7

We present results from BeppoSAX observations of 10 low redshift quasars. The quasars are part of the Laor et al. (1997) sample of 23 optically selected PG quasars with redshift <0…

astro-ph2000

A Hard Medium Survey with ASCA. III.: a Type 2 AGN revealed from X-ray Spectroscopy

R. Della Ceca, T. Maccacaro, P. Rosati +1

In this paper we report the discovery of an hard X-ray selected Type 2 Seyfert galaxy and we present and discuss its X-ray and optical spectrum together with the radio to X-ray ene…

astro-ph1999

The ASCA Hard Serendipitous Survey (HSS): a Progress Update

R. Della Ceca, V. Braito, I. Cagnoni +1

We present here a status update on the ASCA Hard Serendipitous Survey (HSS), a survey program conducted in the 2-10 keV energy band. In particular we discuss the number-flux relati…