AIP astronomy picture of the month
< previous pictures of the month >
Lockman Hole viewed by the XMM EPIC PN-Camera and by ROSAT
(credit: G. Hasinger (AIP) and ESA )
Reason for selection:
First XMM observations of the Lockman hole
Lockman Hole viewed by EPIC PN-Camera in a ~20 ksec observation
(see http://sci.esa.int ).
The superposed squares with numbers refer to the sources detected
in 1.2 Msec observation with the ROSAT HRI, which was the deepest
X-ray image of the universe until recently.
The XMM observation, although relatively short, is even more
sensitive than the deepest ROSAT observation.
A total exposure time of 150 ksec is foreseen in the XMM PV phase.
( credit: G. Hasingera(AIP) and
ESA press release ).