Scientific Seminars

Revisiting the Lockman Hole: photometry, redshifts and beyond.

Sotiria Fotopoulou
IMPRS Munich

2012-06-20    14:00    Brera - Aula Corridoio Strumenti

The Lockman Hole field, is the area of the sky with the lowest galactic absorption, providing ideal observing conditions for extragalactic astronomy; it is the second deepest field observed by XMM-Newton with exposure time of ~1.3Ms and also, it has been observed over the years with the best ground-based telescopes available in the optical and infrared wavelengths (e.g. SUBARU, LBT, UKIRT). I will present the first public release of deep broadband multiwavelength photometry in the Lockman Hole, discussing also the computation of photometric redshifts both for normal galaxies and X-ray selected AGN. Utilizing the information on the X-ray sources in the Lockman Hole and combining them with other wide (XMM serendipitous survey, COSMOS) and deep X-ray fields (CDFS) we computed for the first time the 5-10keV AGN luminosity function. I will briefly introduce the methods commonly used to compute the luminosity function and discuss a comparison of the results between the 5-10keV and other X-ray bands.