| Proposal ID | 088234 |
| Title | MAPPING GAS FLOWS IN THE AGN MRK 817 WITH XMM-NEWTON AND HST |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0882340601 |
| DOI | https://doi.org/10.57780/esa-7q9dx81 |
| Principal Investigator, PI | Prof Erin Kara |
| Abstract | Knowledge of the structure and kinematics of gas around supermassive black holesis vital to understanding accretion and thus AGN feedback. To this end, we, theAGN STORM 2 team, have been awarded a Large 198-orbit Hubble Space Telescopeprogram and a Las Cumbres Observatory Key Project to measure reverberation lagsin Mrk 817. Previous UV/optical reverberation mapping campaigns havesuccessfully mapped the outer accretion disc and broad line region, but revealthat X-rays (thought to be the primary driver of multi-wavelength variability)do not correlate with longer wavelengths as well as expected. X-ray spectral andtiming measurements are necessary to track changes in the geometry and dynamicsof the inner accretion flow that likely affect our inference of the outer disc and outflow str |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-04-18T21:09:38Z/2021-10-28T22:41:26Z |
| Version | 19.16_20210326_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 | 2022-11-16T00:00:00Z |
| Keywords | "inner accretion flow", "reverberation lags", "broad line region", "agn storm", "agn mrk 817", "primary driver", "xmm newton", "multi wavelength variability", "outflow str", "outer accretion disc", "mapping gas flows", "XMM", "supermassive blackhole", "HST", "outer disc", "mrk 817", "xray spectral", "successfully mapped", "agn feedback" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Erin Kara, 2022, 'MAPPING GAS FLOWS IN THE AGN MRK 817 WITH XMM-NEWTON AND HST', 19.16_20210326_1200, European Space Agency, https://doi.org/10.57780/esa-7q9dx81 |