| Proposal ID | 010907 |
| Title | X-ray observations of EUV-bright AGN |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0109070101 |
| DOI | https://doi.org/10.5270/esa-0mojim5 |
| Principal Investigator, PI | Prof Keith Mason |
| Abstract | GT- We propose to observe three AGN which all have very strong EUV components,but are otherwise quite different in terms of the implications that theiroptical to soft X-ray spectra represent for models of the big bump (theoptical to soft X-ray component which incorporates the optical/UV big blue bumpand the soft X-ray excess). REJ1034+396 (z=0.04) is a narrow-line Seyfert 1galaxy whose BBB temperature is unusually high (kTeff~100eV). In addition, the 2-10keV spectrum measured by ASCA is unusually soft with an energy index,alpha=1.6. E1346+266 is a narrow-line quasar (z=0.92) and has the strongest,softest X-ray spectrum identified to date. In REJ2248-511, the big bump has arelatively low temperature but shows large flux variability with time. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2000-10-26T02:29:27Z/2003-01-14T09:26:15Z |
| Version | 17.56_20190403_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 | 2004-02-20T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "softest xray spectrum", "soft xray component", "soft xray excess", "bbb temperature", "blue bump", "euv bright agn", "energy index", "euv components", "x ray", "rej2248 511", "relatively low temperature", "narrow line seyfert", "396 z", "soft xray spectra", "flux variability", "10kev spectrum" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Keith Mason, 2004, 'X-ray observations of EUV-bright AGN', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-0mojim5 |