We propose to monitor the X-ray emission of three Seyfert 2 galaxies, todetermine the origin of the various components of their spectra. RXTE resultshave shown two of these sources to be highly variable in hard X-rays, and therelationship between variability of the continuum, absorption, iron line andCompton reflection hump gives strong constraints on the central regions ofthese objects. In Mrk 348, we wish to investigate the changes in absorbingcolumn, which are apparently inconsistent with the molecular torus. In Mrk 3,there is a controversy over the origin of the reflection component and ironline. Finally, we consider the reflection-dominated case of NGC 6552, which weintend to monitor to determine the location of the scattering medium.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2001-03-12T23:10:35Z/2002-09-16T07:20:43Z
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.
European Space Agency, Dr Kirpal Nandra, 2005, 'Monitoring the circumnuclear matter in Seyfert 2 galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-mgk3qsb
