The origin of the hard X-ray excess and coronal emission are key to ourunderstanding of AGN. The nearby (z=0.104) luminous QSO, 1H0419-577 shows one of the strongest hard excesses and one of the most extreme high energy cut-offs observed to date from any AGN. If its origin is due to thermal Comptonization, then this implies a remarkably low corona temperature of kT=14keV. Here we propose simultaneous 3x50ks XMM-Newton and NuSTAR observations of 1H0419-577 to understand both the nature and variability of the corona and its response to the illuminating continuum. This will reveal the true form of the X-rays produced from close to the central black hole.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2018-05-16T08:33:13Z/2018-11-14T12:10:13Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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.
European Space Agency, Dr James Reeves, 2019, 'The Remarkably Cool X-ray Spectrum of the QSO comma 1H 0419-577', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-2i0rdgy
