A dataset provided by the European Space Agency

Proposal ID 014019
Title Observing a Narrow Line Seyfert 1 Galaxy in a peculiar state
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0140190101

DOI https://doi.org/10.5270/esa-590ry5g
Principal Investigator, PI Dr Roland Walter
Abstract We want to observe a Narrow Line Seyfert 1 galaxy with a very peculiar spectralenergy distribution. Its prominent soft X-ray excess component is not detectedin the ultraviolet, indicating a very narrow range of temperature when comparedto normal AGNs. We want to probe the origin of the soft X-ray excess and to understand why thisobject is so peculiar. We believe that this special case will help understandingnormal Seyferts.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-08-16T11:06:18Z/2003-08-16T19:19:52Z
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.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2004-09-25T00:00:00Z
Keywords "narrow range", "spectral energy distribution", "normal agns", "narrow line seyfert", "normal seyferts", "soft xray excess"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Roland Walter, 2004, 'Observing a Narrow Line Seyfert 1 Galaxy in a peculiar state', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-590ry5g