| Proposal ID | 088496 |
| Title | Investigating the nature of non-AGN nuclear transients discovered by eROSITA |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0884960101 |
| DOI | https://doi.org/10.57780/esa-vb4o6ms |
| Principal Investigator, PI | Dr Zhu Liu |
| Abstract | 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. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-06-01T00:40:05Z/2024-03-18T11:26:32Z |
| Version | 21.51_20241115_1113 |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2025-04-06T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "agn nuclear transients", "agn activity", "XMM-Newton", "galaxy nuclei", "vital information", "novel population", "sky survey", "XMM", "temporal evolution", "standard scenario", "xmm data", "xmm newton", "agn transients" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Zhu Liu, 2025, 'Investigating the nature of non-AGN nuclear transients discovered by eROSITA', 21.51_20241115_1113, European Space Agency, https://doi.org/10.57780/esa-vb4o6ms |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |