A dataset provided by the European Space Agency

Name 040232
Title X-ray spectral characterization of optically selected narrow-line Seyfert 1 gal


DOI https://doi.org/10.5270/esa-v56zug2
Author Dr Luigi Foschini
Description We propose the observation with XMM-Newton of a sample of 12 optically selected Narrow-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 of the X-ray spectral properties and correlations of optically selected NLS1. The superior capabilities of XMM will allow to deconvolve spectral components if appropriate. The results will be compared with those of X-ray selected NLS1 samples and classical Seyfert-1s to discuss-infer systematic trends of the X-ray spectral shape as a function of the FWHM of (Hbeta) which, combined with luminosity, allows to estimate the Eddington ratio and the mass of the central black hole.
Publication No observations found associated with the current proposal
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 Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2008-03-10T00:00:00Z, 040232, 17.56_20190403_1200. https://doi.org/10.5270/esa-v56zug2