|Title||A Census of Compton Thick AGN in the Local Universe|
|Author||Dr Elise Laird|
|Description||We propose a snapshot (10ks) survey of the 15 northern Seyfert 2s from the 12 micron galaxy sample which do not currently have high quality hard X-ray coverage. Mid-IR selection is relatively unbiased against obscured objects and, in particular, Compton thick sources. Our complete sample of 54 objects will therefore provide a new estimate of the fraction of Compton thick AGN in the local universe, and hence the NH distribution for AGN. These are crucial ingredients for AGN unification, population synthesis models of the X-ray background, and the determination of the accretion history and total accretion budget of the Universe.|
|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, 2012-03-04T00:00:00Z, 065538, 17.56_20190403_1200. https://doi.org/10.5270/esa-8mh02do|