A dataset provided by the European Space Agency

Proposal ID 030032
Title X-ray spectral characterization of optically selected NL Seyfert 1 galaxies
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0300320101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0300320301
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0300320501

DOI https://doi.org/10.5270/esa-fri4c7l
Principal Investigator, PI Dr Luigi Foschini
Abstract We propose the observation with XMM-Newton of a sample of 14 optically selectedNarrow-Line Seyfert 1 galaxies (NLS1) discovered in the Sloan Digital Sky Survey(SDSS) and never observed in X-rays. The key aim of this project is the detailedcharacterization of the X-ray spectral properties of optically selected NLS1.Moreover, since most NLS1 known to date are X-ray selected, this study will alsoassess if their 0.5-10 keV spectral properties change with the selection method.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2006-02-11T20:47:43Z/2006-04-05T03:07:11Z
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 2008-08-29T00:00:00Z
Last Update 2025-08-04
Keywords "XMM", "XMM-Newton", "xmm newton", "SDSS", "narrow line seyfert", "kev spectral properties", "selection method", "xray spectral properties", "nl seyfert"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Luigi Foschini, 2008, 'X-ray spectral characterization of optically selected NL Seyfert 1 galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-fri4c7l