|Title||XMM follow-ups of rare AGN ignition and shut-down events detected with eROSITA|
|Author||Dr Mirko Krumpe|
|Description||eROSITA is performing multiple all-sky X-ray surveys until 2023, and our team is systematically identifying rare accretion ignition-shut-down events - changing-look AGN - as they are transitioning. To track how the X-ray corona, UV-optical accretion disk, and optical broad-line region respond to a sudden, major change in accretion rate, we propose joint ToO observations of XMM-Newton (EPIC+OM) and VLT (FORS2) to obtain at least two observations per triggered object (maximum of 4 ignition events and 4 shutdown events). We will constrain the extent of these drastic flux changes and yield crucial constraints on how the different structural AGN components respond to dramatic changes of the accretion rate.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN|
|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, 2022-03-25T00:00:00Z, 090399, 19.17_20220121_1250. https://doi.org/10.57780/esa-251pday|