A dataset provided by the European Space Agency

Name 020465
Title COMPLETING THE X-RAY CENSUS OF NEARBY SEYFERT GALAXIES: OUR HIDDEN NEIGHBOURS
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204650101
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204650201
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204650301
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204651101
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204651201

DOI 10.5270/esa-5gjea8o
Author Dr IAN GEORGE
Description Consideration of the CfA sample of Seyfert galaxies reveals the suprising fact that only half the sample, well studied at most wavelengths, has been observed in the X-ray regime. It is likely these are absorbed sources, and it is important to observe these with XMM to redress our picture of low-z AGN. While much recent work has focussed on obscured AGN at high-z, obscured local sources are an important and neglected part of the luminosity function. These local sources also offer the opportunity to observe a level of detail in the X-ray spectra which is currently impossible to study in high-z sources. XMM observations of local Seyferts complement those at other wavebands & test unification schemes. These sources may also hold secrets undetectable in the more distant counterparts.
Publication The X-ray variability and the near-IR to X-ray spectral energy distribution of four low luminosity Seyfert 1 galaxies . Papadakis, I. E., Ioannou, Z., et all. . A&A . 490-995 . 2008 . 2008A&A...490..995P ,
XMM-Newton observations of Seyfert galaxies from the Palomar spectroscopic survey: the X-ray absorption distribution . Akylas, A., Georgantopoulos, I., . A&A . 500-999 . 2009 . 2009A&A...500..999A ,
A Multi-wavelength Study of the Nature of Type 1.8-1.9 Seyfert Galaxies . Trippe, M. L., Crenshaw, D. M., et all. . ApJ . 725-1749 . 2010 . 2010ApJ...725.1749T ,
The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue . Watson, M. G., Schroder, A. C., et all. . A&A . 493-339 . 2009 . 2009A&A...493..339W ,
On the origin of soft X-rays in obscured AGN: answers from high-resolution spectroscopy with XMM-Newton . Guainazzi, Matteo, Bianchi, Stefano, . MNRAS . 374-1290 . 2007 . 2007MNRAS.374.1290G ,
The X-ray Energy Dependence of the Relation Between Optical and X-ray Emission in Quasars . Young, M., Elvis, M., . ApJ . 708-1388 . 2010 . 2010ApJ...708.1388Y ,
An Extremely Luminous Panchromatic Outburst from the Nucleus of a Distant Galaxy . Levan, A. J., Tanvir, N. R., et all. . Sci . 333-199 . 2011 . 2011Sci...333..199L ,
New constraints on the X-ray spectral properties of type 1 active galactic nuclei . Scott, A. E., Stewart, G. C., ...
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-05-10T18:48:57Z/2005-01-07T04:37:14Z
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 2006-02-10T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2006-02-10T00:00:00Z, 020465, 17.56_20190403_1200. https://doi.org/10.5270/esa-5gjea8o