| Proposal ID | 086505 |
| Title | The First X-ray View of a New Class of Changing-Look AGN with XMM and NuSTAR |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0865050101 |
| DOI | https://doi.org/10.57780/esa-3dr30i8 |
| Principal Investigator, PI | Ms Sara Frederick |
| Abstract | ZTF has enabled the discovery of a new class of LINERs turning on into AGNwith dramatic optical spectroscopic transformations. For the most rapidtransition into a NLS1, real-time monitoring revealed the presence of aprominent soft excess and a luminous X-ray flare delayed with respect to theoptical rise by 2 months. The proposed program will test physical mechanismsdriving this new class of changing-look LINERs with joint XMM/NuSTARobservations by measuring the response of the reprocessed hard X-ray continuumin these nine objects. We wish to map out the structure of the accretion flowstate change, view for the first time this new class of changing-look LINERs inthe hard X-rays, and contrast their spectral properties with that of broad line and changing-look Seyferts. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-06-19T17:32:15Z/2020-11-22T11:47:21Z |
| Version | 18.02_20200221_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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2021-12-15T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "optical rise", "optical spectroscopic transformations", "hard xray", "changing look agn", "changing look liners", "rapid transition", "spectral properties", "NuSTAR", "prominent soft excess", "broad line", "XMM", "real time", "accretion flow", "changing look seyferts" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Ms Sara Frederick, 2021, 'The First X-ray View of a New Class of Changing-Look AGN with XMM and NuSTAR', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-3dr30i8 |