|Title||THE OBSCURED QUASARS IN IRAS F15307+3252 AND SIMILAR OBJECTS|
|Author||Dr CAROLIN CRAWFORD|
|Description||IRAS F15307+3252 is one of the most luminous galaxies known and a fine example of an IR-optically-selected type 2 quasar. As in lower power Seyfert galaxies, the powerful AGN is hidden from our sight by an absorbing torus, but the detection of polarized broad lines in the optical suggests that it would resemble an ordinary quasar if seen from an orthogonal angle. We propose here a reobservation with XMM-Newton of F15307+3252 (our earlier XMM observation was badly affected by background flares) and new observations of 3 similar objects, with the aim of detecting the hard X-ray emission from their hidden power sources. The proposed study of excellent type 2 quasar candidates has major implications for the growth of massive black holes in 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, 2008-08-29T00:00:00Z, 020101, 17.56_20190403_1200. https://doi.org/10.5270/esa-vtgtnxs|