The hot corona is central for our understanding of the X-ray emission of activegalactic nuclei (AGN). Beside its importance, in fact, we have very littleknowledge about the corona. The last years established a new viewing angle as afew observations allowed to observe the building of a hot corona, especially inthe context of tidal disruption events. Unfortunately, this observations had tofollow an opportunistic approach which substantially limits their significance.Here we propose a systematic monitoring of the building of a corona in ESO253-G003. ESO 253-G003 shows a strongly periodic disruption of its X-rayemission every ~114 days and subsequent recovery of its X-ray emitting hotcorona within 20 days. This offers a unique opportunity to systematically monitor the raise of a corona.
Publications
No publications found for current proposal!
Instrument
RGS1, EPN, RGS2, EMOS1, OM, EMOS2
Temporal Coverage
2023-08-08T20:16:41Z/2023-09-19T22:22:27Z
Version
20.10_20230417_1156
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 Norbert Schartel, 2024, 'Monitoring the Building of the Corona in ESO 253-G003', 20.10_20230417_1156, European Space Agency, https://doi.org/10.57780/esa-hhxqjph
