|Title||The iron line variability of NGC2992: a direct probe of AGN central engines|
|Author||Dr Volker Beckmann|
|Description||We propose a monitoring campaign (8 observation of ~55 ksec each) of the bright Seyfert 1.5 NGC2992, which reveals dramatic X-ray variability. The aim of the proposal is to directly probe how and on what timescale the broad Fe line responds to the continuum. The analysis of the previous X-ray observations unveiled that its X-ray flux varies by a factor of 10 over a year with the broad Fe line responding to the continuum. Such behavior is extremely rare and makes NGC2992 a unique laboratory to investigate the central engine of AGN. The proposed monitoring maximizes the probability of covering as much of the dynamic range of continuum and Fe line variability as possible. These observations will allow us to obtain the best constraints to date of the Fe line properties for each flux state.|
|Publication||The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
X-ray variability of Seyfert 1.8-1.9 galaxies . Hernandez-Garcia, L., Masegosa, J., et all. . A&A . 602-65 . 2017 . 2017A&A...602A..65H ,
Tracking the iron K alpha line and the ultra fast outflow in NGC 2992 at different accretion states . Marinucci, A., Bianchi, S., et all. . MNRAS . 478-5638 . 2018 . 2018MNRAS.478.5638M ,
The Variable and Non-variable X-Ray Absorbers in Compton-thin Type II Active Galactic Nuclei . Laha, Sibasish, Markowitz, Alex G., et all. . ApJ . 897-66 . 2020 . 2020ApJ...897...66L ,
|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, 2014-05-28T00:00:00Z, 070178, 17.56_20190403_1200. https://doi.org/10.5270/esa-y78td8d|