| Name | 088213 |
| Title | Solving The Puzzle of The Variable Narrow Iron Line in Mrk 841 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0882130301 |
| DOI | https://doi.org/10.57780/esa-aasysjz |
| Author | Dr Abderahmen Zoghbi |
| Description | Iron lines are observed ubiquitously in AGN, offering a powerful probe of the black hole surroundings. Mrk 841 provides a puzzling case in which the narrow iron line, usually associated with the torus or the broad line region, varies on hours time scales. This can be due either an unusually small emission region for the narrow line, or due to hot spots orbiting very close to the black hole whose emission is occasionally Doppler-boosted. With the source visibility now allowing for long exposures, we propose to observe it for two orbits, simultaneously with NuSTAR, to solve the puzzle. Confirming any of the proposed mechanisms offer an exciting opportunity to unravel unprecedented details about the line emission region. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-02-10T01:19:11Z/2022-02-13T15:23:08Z |
| Version | 20.09_20221024_1724 |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2023-03-02T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Abderahmen Zoghbi, 2023, 088213, 20.09_20221024_1724, European Space Agency, https://doi.org/10.57780/esa-aasysjz |