A dataset provided by the European Space Agency

Name 010907
Title X-ray observations of EUV-bright AGN


DOI https://doi.org/10.5270/esa-0mojim5
Author Prof Keith Mason
Description 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 their optical to soft X-ray spectra represent for models of the .big bump. (the optical to soft X-ray component which incorporates the optical-UV big blue bump and the soft X-ray excess). REJ1034+396 (z=0.04) is a narrow-line Seyfert 1 galaxy whose BBB temperature is unusually high (kTeffvirgul100eV). 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 a relatively low temperature but shows large flux variability with time.
Publication No observations found associated with the current proposal
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 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 2004-02-20T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2004-02-20T00:00:00Z, 010907, 17.56_20190403_1200. https://doi.org/10.5270/esa-0mojim5