GT- We wish to perform long pointings (150 ksec) with XMM attwo bright Seyfert 1 galaxies, NGC4051 and Mrk766, in order to measure i) thepower spectrum of flux variations down to the shortest scales, ii) the crosscorrelation of variations at medium X-ray, soft X-ray, UV and opticalwavelengths, iii) changes in the spectral shape of the X-ray continuum iv) variations of spectral features such as absorption from partially ionized gasand the fluorescent Fe emission line(s) in response to continuum variations.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2001-05-16T10:30:57Z/2001-05-21T20:38:40Z
Version
PPS_NOT_AVAILABLE
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.
European Space Agency, Prof Keith Mason, 2003, 'Spectral Variability of Seyfert Galaxies', PPS_NOT_AVAILABLE, European Space Agency, https://doi.org/10.5270/esa-0u4md6o
