We propose to observe two high redshift (z=0.67 and z=2.35) QSOs, detected in our deep ASCA survey which appear to be obscured in the optical. These may represent the high redshift counterparts of the local obscured Seyfert galaxies and the XMM observations will probe for the first time in detail the nature of this long sought population. In particular we will (1) probe the nature of circumnuclear matter at high redshift using both the Fe line around 6 keV and the neutral column density diagnostics (2) check for possible evolution in the intrinsic power-law spectrum similar to that witnessed in high-redshift type-1 QSOs by Vignali et al. The above will
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2002-08-26T10:14:14Z/2002-08-26T19:05:47Z
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 Ioannis Georgantopoulos, 2003, 'XMM observations of the high redshift type-2 QSOs detected in ASCA', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5wg69fn
