Proposal ID | 040232 |
Title | X-ray spectral characterization of optically selected narrow-line Seyfert 1 gal |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0402320101 |
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 |
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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 |
Last Update | 2025-01-27 |
Keywords | "central black hole", "infer systematic trends", "SDSS", "galaxy nls1", "xmm newton", "eddington ratio", "XMM-Newton", "classical seyfert 1s", "narrow line seyfert", "nls1 samples", "XMM", "deconvolve spectral components", "xray spectral properties", "xray spectral shape" |
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 |