We propose to observe the highly X-ray luminous z=3.395 radio galaxy B20902+343, detected by us with Chandra in a short 10ks exposure. The unresolvedX-ray source is centred on the active nucleus the spectrum of which is too flat(photon index 0.68) to be unabsorbed and is consistent with the most luminous,highly-absorbed source yet reported. We expect to detect a significant iron lineproduced in the source by fluorescence. The results demonstrate the AGN-inducedend of the early obscured phase of massive young galaxies.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2008-04-09T05:12:22Z/2008-04-10T01:26:52Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
European Space Agency, Dr Andrew C. Fabian, 2009, 'The distant radio galaxy B2 0902+343: a powerful obscured active galaxy', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-z9t203n
