A dataset provided by the European Space Agency

Proposal ID 040232
Title X-ray spectral characterization of optically selected narrow-line Seyfert 1 gal
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0402320101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0402320201

DOI https://doi.org/10.5270/esa-v56zug2
Principal Investigator, PI Dr Luigi Foschini
Abstract We propose the observation with XMM-Newton of a sample of 12 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 study ofthe X-ray spectral properties and correlations of optically selected NLS1. Thesuperior capabilities of XMM will allow to deconvolve spectral components ifappropriate. The results will be compared with those of X-ray selected NLS1samples and classical Seyfert-1s to discuss/infer systematic trends of the X-rayspectral shape as a function of the FWHM of (Hbeta) which, combined withluminosity, allows to estimate the Eddington ratio and the mass of the centralblack hole.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2007-02-02T17:58:35Z/2007-02-03T01:44:22Z
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 2008-03-10T00:00:00Z
Keywords "eddington ratio", "SDSS", "XMM", "classical seyfert 1s", "xray spectral shape", "nls1 samples", "infer systematic trends", "xray spectral properties", "galaxy nls1", "XMM-Newton", "narrow line seyfert", "deconvolve spectral components", "xmm newton", "central black hole"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Luigi Foschini, 2008, 'X-ray spectral characterization of optically selected narrow-line Seyfert 1 gal', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-v56zug2