A dataset provided by the European Space Agency

Name 050005
Title The nature of naked Active Galactic Nuclei
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0500050101

DOI 10.5270/esa-6ikfj3e
Author Dr Mario Gliozzi
Description We propose to observe with XMM-Newton 3 sources belonging to a new AGN class: the naked AGN. Preliminary snapshot observations with Chandra demonstrate that these objects are easily detectable and no nearby sources are present within a radius of 1 arcminute. Based on optical studies, these AGN appear as type2 from the spectral point of view, and as type1 AGN for their variability. The X-ray data, which are unambiguously associated with genuine nuclear activity, are crucial to shed light on the nature of these enigmatic sources, which may be representative of a large class of AGN. XMM-Newton unique capabilities are crucial to: 1) Investigate the continuum spectrum and the Fe K line; 2) Study the flux and spectral variability; 3)Compare the SED with those of type1 and type2 AGN.
Publication Q2122-444: A Naked Active Galactic Nucleus Fully Dressed . Gliozzi, M., Panessa, F., et all. . ApJ . 725-2071 . 2010 . 2010ApJ...725.2071G ,
Exospheric solar wind charge exchange as seen by XMM-Newton . Carter, J. A., Semba, S., . AN . 333-313 . 2012 . 2012AN....333..313C ,
The cosmological analysis of X-ray cluster surveys - II. Application of the CR-HR method to the XMM archive . Clerc, N., Sadibekova, T., et all. . MNRAS . 423-3561 . 2012 . 2012MNRAS.423.3561C ,
Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift . Yershov, V. N., . Ap&SS . 354-97 . 2014 . 2014Ap&SS.354...97Y ,
SPIDERS: the spectroscopic follow-up of X-ray selected clusters of galaxies in SDSS-IV . Clerc, N., Merloni, A., et all. . MNRAS . 463-4490 . 2016 . 2016MNRAS.463.4490C ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
AGN spectral states from simultaneous UV and X-ray observations by XMM-Newton . Svoboda, J., Guainazzi, M., . A&A . 603-127 . 2017 . 2017A&A...603A.127S ,
X-ray properties of the X-CLASS-redMaPPer galaxy cluster sample: the luminosity-temperature relation . Molham, Mona, Clerc, Nicolas, et all. . MNRAS . 494-161 . 2020 . 2020MNRAS.494..161M ,
Multiwavelength classification of X-ray selected ga...
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2007-11-18T21:34:07Z/2007-11-19T10:26:53Z
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 2009-01-12T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2009-01-12T00:00:00Z, 050005, 17.56_20190403_1200. https://doi.org/10.5270/esa-6ikfj3e