|Title||X-ray absorbed, broad-lined, red AGN and the Cosmic X-ray Background (CXRB)|
|Author||Dr Belinda Wilkes|
|Description||The Two Micron All-Sky Survey(2MASS) is compiling a sample of new, red, active galaxies (AGN) whose number density rivals that of optically selected AGN. Their typically high optical polarization suggests substantial obscuration toward the nuclear energy source. Chandra observations show weak, hard X-ray emission compared with normal, low-redshift AGN suggesting that these, mostly broad-lined, AGN represent the X-ray absorbed population predicted by modelling of the Cosmic X-ray Background (CXRB). We request XMM time for a subset of these sources to obtain higher signal-to-noise spectra to: 1: determine the spectral index and absorbing column density, 2. determine their contribution to the CXRB, 3. look for reflected-scattered light expected from their high polarisation.|
|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, 2004-09-12T00:00:00Z, 014917, 17.56_20190403_1200. https://doi.org/10.5270/esa-57wl3e0|