A dataset provided by the European Space Agency

Name 030700
Title Probing multiple absorbing structures around Seyfert nuclei


DOI https://doi.org/10.5270/esa-9k3iyq3
Author Dr Jonathan Gelbord
Description We are conducting a study of the absorbers in Seyfert galaxies, combining X-ray measurements of the column densities with geometrical constraints derived from radio and optical imaging to test the Unified model and possible modifications to it. We wish to characterize the absorption in 22 Seyferts that have never before been observed in hard X-rays. These observations would complete the X-ray coverage of Seyferts with resolved radio jets, which we use to indicate the orientation of the central engine. By comparing the absorbers to the alignment of the Seyfert structures we have found evidence suggesting that unification models with only a pc-scale absorber are incomplete: there is another absorber aligned with the plane of the host galaxy on 100 pc scales that hides the BLR in some Sy 2s.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2005-05-16T17:15:30Z/2006-04-25T17:23:28Z
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 2007-05-31T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2007-05-31T00:00:00Z, 030700, 17.56_20190403_1200. https://doi.org/10.5270/esa-9k3iyq3