|Title||X-ray time delays in NGC 6814|
|Author||Dr Andrew Lobban|
|Description||When combined with high S-N spectroscopy, X-ray timing properties - in particular, X-ray time lags - allow one to gain physical insights into accretion and reprocessing near black holes in unprecedented detail. Here, we propose one such study of NGC 6814 (130ks) - a rapidly variable AGN in which a recent Suzaku observation revealed the presence of a strong hard lag with an intriguing energy-dependence while interestingly displaying no evidence of strong reprocessing in its X-ray spectrum. By utilising the high sensitivity of XMM-Newton we propose to perform a detailed spectral-timing study of NGC 6814, taking full advantage of the opportunity to test the hypotheses surrounding the production of X-ray time delays in an environment free from complex spectral components.|
|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, 2017-05-11T22:00:00Z, 076462, 17.56_20190403_1200. https://doi.org/10.5270/esa-xuiap3j|