|Title||EXPLORATORY OBSERVATIONS OF LUMINOUS ULTRASOFT, NARROW-LINE QUASARS|
|Author||Dr SIMON VAUGHAN|
|Description||Ultrasoft, narrow-line Seyfert 1s represent one extreme of activity in Active Galactic Nuclei (AGN). However, their high-luminosity counterparts, the ultrasoft-narrow-line quasars, have received little attention, largely due to a paucity of targets. Here we propose to rectify this situation with XMM observations of six luminous, narrow-line quasars at zvirgul0.5. We will determine the shape of the X-ray continuum and compare this to both the lower-luminosity ultrasoft objects and ..normal. quasars of comparable luminosity. We will search for rapid variability, common in lower luminosity objects, and perhaps the clearest indicator of extreme activity in the nucleus.|
|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, 2006-02-19T00:00:00Z, 020048, 17.56_20190403_1200. https://doi.org/10.5270/esa-cm1ewdd|