|Title||X-ray spectroscopy at the quasar era|
|Author||Dr Comastri Andrea|
|Description||We propose to exploit the superior sensitivity and spectral resolution of the instruments onboard XMM to perform a detailed study of a sizeable sample of radio-quiet quasars at redshifts (z = 1-2) where the effects of cosmological evolution become extremely important. More specifically we want to explore the photon index -- lron line intensity -- luminosity parameter space in a region unexplored by the previous missions. The proposed observations will allow to put strong constraints on the evolution of the X-ray spectral slopes and iron line intensity and ionization state.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|Mission Description||The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2003-06-15T00:00:00Z, 003354, 17.56_20190403_1200. https://doi.org/10.5270/esa-8feisv0|