A dataset provided by the European Space Agency

Proposal ID 020036
Title AN XMM-NEWTON STUDY OF THE MOST RADIO-LOUD NARROW-LINE SEYFERT 1 PKS 2004-447
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0200360201

DOI https://doi.org/10.5270/esa-c9cclb4
Principal Investigator, PI Mr LUIGI GALLO
Abstract We propose a multiwavelength observation of the most radio-loud Narrow-LineSeyfert 1 galaxy (NLS1) PKS 2004--447. PKS~2004--447 may be the most fascinatingobject in this rare class of NLS1 due to its extreme radio loudness compared toother members of the class, and its classification as a compact steep-spectrum(CSS) source. Both the CSS and NLS1 classification suggest that PKS~2004--447 isa young AGN, however, its combination of optical and radio properties is incontradiction to what is normally observed and expected. We propose to observePKS 2004--447 at radio, optical, UV, and X-rays wavelengths simultaneously, inorder to understand the spectral energy distribution and the primary energysource at work.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-04-11T18:52:44Z/2004-04-12T06:31:18Z
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 2005-06-09T00:00:00Z
Last Update 2025-01-27
Keywords "2004 447", "primary energy source", "radio properties", "spectral energy distribution", "rare class", "spectrum css source", "xmm newton", "galaxy nls1", "nls1 classification", "fascinating object", "radio loudness", "XMM"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Mr LUIGI GALLO, 2005, 'AN XMM-NEWTON STUDY OF THE MOST RADIO-LOUD NARROW-LINE SEYFERT 1 PKS 2004-447', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-c9cclb4