A dataset provided by the European Space Agency

Name 000922
Title Monitoring the circumnuclear matter in Seyfert 2 galaxies


DOI https://doi.org/10.5270/esa-mgk3qsb
Author Dr Kirpal Nandra
Description We propose to monitor the X-ray emission of three Seyfert 2 galaxies, to determine the origin of the various components of their spectra. RXTE results have shown two of these sources to be highly variable in hard X-rays, and the relationship between variability of the continuum, absorption, iron line and Compton reflection hump gives strong constraints on the central regions of these objects. In Mrk 348, we wish to investigate the changes in absorbing column, which are apparently inconsistent with the molecular torus. In Mrk 3, there is a controversy over the origin of the reflection component and iron line. Finally, we consider the reflection-dominated case of NGC 6552, which we intend to monitor to determine the location of the scattering medium.
Publication No observations found associated with the current proposal
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 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 2005-01-01T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2005-01-01T00:00:00Z, 000922, 17.56_20190403_1200. https://doi.org/10.5270/esa-mgk3qsb