|Title||The strong Fe Lalpha emitting NLS1: Mrk 493|
|Author||Prof Luigi Gallo|
|Description||Mrk 493 is bright narrow-line Seyfert 1 galaxy that has been spared of scrutiny with XMM-Newton. A systematic search for strong Fe La emitters in the XMM-Newton archive revealed Mrk 493 as a strong Fe La emitting candidate. Investigation of a short 2003 observation showed the object to be rather impressive exhibiting a strong soft-excess and broad Fe K feature, rapid variability and an apparently reflection dominated spectrum. The object appears very similar to 1Hvirgul0707-495, but is, on average, twice as bright. Given the combination of characteristics and source brightness, Mrk 493 demands consideration for detailed study and potential reverberations mapping. We propose the NLS1 for 190 ks to complete such work.|
|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, 2016-03-23T23:00:00Z, 074429, 17.56_20190403_1200. https://doi.org/10.5270/esa-rjou95b|