We propose to obtain a 45ks X-ray spectrum of SDSSJ2125-0813 - the most luminousradio quiet quasar that shows signs of accretion disk emission in the optical. Ashort exploratory Chandra observation of this object revealed tentative evidencefor an unusually strong, ionized, broad Fe Ka line combined with little or nointrinsic absorption. The proposed XMM-Newton observation will confirm or refutethe presence of a relativistic Fe Ka line, the first such line to be detected ina double-peaked emitter. Alternatively, the detection of a strong narrow linewill provide a rare example of strong Fe Ka emission in an active galaxy withquasar-like luminosity.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2008-04-24T11:40:22Z/2008-04-25T00:33:10Z
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 Iskra Strateva, 2009, 'Unraveling the accretion structure of the double-peaked emitter SDSS J2125-0813', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-j0ld668
