|Title||X-ray vs. H2O maser emission in AGN|
|Author||Dr Paola Castangia|
|Description||Water megamaser radio emission originates from the innermost parsec(s) of active galactic nuclei (AGN). X-ray photons are produced in regions even closer to the supermassive central object. Combining the information provided by these two tracers has the potential to substantially improve our understanding of the AGN physics. Correlations between X-ray and water maser emission in AGN have been reported, however, the lack of systematic studies affects the confidence level of these results. Here we propose to complete the approved XMM project with Proposal ID 065480, aimed at measuring column densities in a sample of five AGN hosting H2O maser emission, thus shedding light on the physics of their active nuclei and improving the statistics of the aforementioned studies.|
|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, 2012-09-30T00:00:00Z, 067190, 17.56_20190403_1200. https://doi.org/10.5270/esa-wc9dbxw|