| Name | 050541 |
| Title | Unraveling the accretion structure of the double-peaked emitter SDSS J2125-0813 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0505410101 |
| DOI | https://doi.org/10.5270/esa-j0ld668 |
| Author | Dr Iskra Strateva |
| Description | We propose to obtain a 45ks X-ray spectrum of SDSSJ2125-0813 - the most luminous radio quiet quasar that shows signs of accretion disk emission in the optical. A short exploratory Chandra observation of this object revealed tentative evidence for an unusually strong, ionized, broad Fe Ka line combined with little or no intrinsic absorption. The proposed XMM-Newton observation will confirm or refute the presence of a relativistic Fe Ka line, the first such line to be detected in a double-peaked emitter. Alternatively, the detection of a strong narrow line will provide a rare example of strong Fe Ka emission in an active galaxy with quasar-like luminosity. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2008-04-24T11:40:22Z/2008-04-25T00:33:10Z |
| Version | 17.56_20190403_1200 |
| 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 | 2009-06-10T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2009-06-10T00:00:00Z, 050541, 17.56_20190403_1200. https://doi.org/10.5270/esa-j0ld668 |