| Proposal ID | 092248 |
| Title | Extending a Sample of True Type 2 Seyfert Candidates |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0922480701 |
| DOI | https://doi.org/10.57780/esa-zsr4zy5 |
| Principal Investigator, PI | Dr Roy Kilgard |
| Abstract | Under the unified model of AGN, the difference between between Seyfert 1 and 2AGN is explained as an effect of orientation relative to the observer. Seyfert2s are seen edge-on, with the broad line region obscured by a dusty torus. Thistheory is motivated by the observation of ???hidden??? broad lines in someSeyfert 2s. However, not all Seyfert 2s have polarized broad lines, suggestingthat the unified model is incomplete, and that there are physical differencesbetween some Seyfert 1s and 2s. We propose to extend a sample of ???true???Seyfert 2 candidates that have been observed by both SDSS and the Chandra X-rayObservatory by obtaining high-quality XMM-Newton spectra for 11 sources withinsufficient signal in the Chandra observations to place constraints on their absorption. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2023-08-05T21:22:19Z/2023-08-06T03:00:39Z |
| Version | 20.10_20230417_1156 |
| 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 | 2024-08-23T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | XMM-Newton, OM, RGS, EPIC, X-ray, Multi-Mirror, SAS |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Roy Kilgard, 2024, 'Extending a Sample of True Type 2 Seyfert Candidates', 20.10_20230417_1156, European Space Agency, https://doi.org/10.57780/esa-zsr4zy5 |