During its ongoing all sky survey, eROSITA is rapidly uncovering an increasingnumber of transients associated with galaxy nuclei which show no obvioussignatures of prior AGN activity. A large fraction of these events is expectedto be associated with TDEs. However, already the first results from dedicatedfollow-up campaigns of eROSITA-discovered events demonstrate that the reality ismuch more diverse and the deviations from the standard scenario of TDEs arecommon. Here, we ask for XMM-Newton ToO observations for 10 new nuclear non-AGNtransients that will be discovered by eROSITA during AO20. The XMM data willprovide vital information on the spectral and temporal evolution of this novelpopulation of non-AGN nuclear transients and help deciphering their nature.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2021-06-01T00:40:05Z/2022-08-29T16:06:47Z
Version
20.08_20220509_1852
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 Zhu Liu, 2023, 'Investigating the nature of non-AGN nuclear transients discovered by eROSITA', 20.08_20220509_1852, European Space Agency, https://doi.org/10.57780/esa-vb4o6ms
