|Title||Measuring the torus spatial scale(s) in Seyfert galaxies: a cheap XMM-Newton mon|
|Author||Dr Matteo Guainazzi|
|Description||We propose an intense monitoring campaign of the heavily obscured Seyfert Galaxy Markarian 3 during the XMM-Newton AO-13. We aim at: a) constraining the size of the gas clouds responsible for optically-thick reprocessing of the nuclear continuum; b) probing a hitherto poorly unexplored parameter space on the distance between the X-ray corona and the surrounding optically-thick gas. We request 10 observations of 17 ks each. Thanks to the unique combination of hard X-ray spectral shape and visibility, the proposed observations represent an extremely efficient way of using XMM-Newton during high-radiation intervals close to the perigee passages, when the feasibility of most astrophysical X-ray experiments is severely hampered.|
|Publication||The nature of the torus in the heavily obscured AGN Markarian 3: an X-ray study . Guainazzi, M., Risaliti, G., et all. . MNRAS . 460-1954 . 2016 . 2016MNRAS.460.1954G ,
Compton-thick AGNs in the NuSTAR Era. III. A Systematic Study of the Torus Covering Factor . Marchesi, S., Ajello, M., et all. . ApJ . 872-8 . 2019 . 2019ApJ...872....8M ,
A Broadband X-Ray Study of a Sample of AGNs with [O III] Measured Inclinations . Zhao, X., Marchesi, S., et all. . ApJ . 894-71 . 2020 . 2020ApJ...894...71Z ,
|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, 2016-05-08T22:00:00Z, 074105, 17.56_20190403_1200. https://doi.org/10.5270/esa-875c41b|