|Title||Continued Probing of AGN Variability on 10-100 kyr Timescales|
|Author||Dr Peter Maksym|
|Description||Following the discovery of IC 2497 and Hannys Voorwerp, the citizen scientists taking part in the Galaxy Zoo project have identified a sample of low-redshift galaxies with extended AGN-photoionized cloud indicative of a Seyfert-luminosity AGN. We were awarded XMM time in AO-10 to determine whether the AGN with a deficit of infrared luminosity have plausibly shut down during the light travel time from the nucleus to the cloud; only one source has been observed. XMM-Newton observations of the remaining objects are necessary to measure significant AGN variability on previously inaccessible timescales.|
|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, 2017-02-26T23:00:00Z, 076263, 17.56_20190403_1200. https://doi.org/10.5270/esa-nd0xnrg|