1,268 datasets found

Keywords: Active galactic nuclei

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  • XMM-Newton Slew Survey in 2-10keV

    The on-going XMM-Newton Slew Survey (XSS) provides coverage of a significant fraction of the sky in a broad X-ray bandpass. Although shallow by contemporary standards, in the...
  • Catalog of AGN in XMM-Newton archive (CAIXA)

    We present CAIXA, a Catalogue of AGN In the XMM-Newton Archive. It consists of all the radio-quiet X-ray unobscured (N_H_<2x10^22^cm^-2^) active galactic nuclei (AGN)...
  • ROXA: multi-frequency large sample of blazars

    Although Blazars are a small fraction of the overall AGN population they are expected to be the dominant population of extragalactic sources in the hard X-ray and gamma-ray...
  • Hard 2-10kev X-ray selected sources

    We present Chandra and Spitzer data for the 186, extragalactic, hard 2-10keV X-ray selected sources, which lie in the central part of the Chandra Deep Field South (CDFS). For...
  • NIR lines for AGN up to z~3

    Optical rest-frame spectroscopic diagnostics are usually employed to distinguish between star formation and active galactic nucleus (AGN) powered emission. However, this method...
  • NGC 7469 X-ray spectra

    We investigate the physical structure of the active galactic nucleus (AGN) wind in the Seyfert-1 galaxy NGC 7469 through high-resolution X-ray spectroscopy with Chandra HETGS...
  • Narrow line Seyfert 1 (NLS1) galaxies spectra

    Many active galactic nuclei (AGN) and particularly narrow line Seyfert 1 (NLS1) galaxies, usually exhibit blueshifts and blue wings in several emission lines, which are mainly...
  • SwiftFT catalog

    An accurate census of the active galactic nuclei (AGN) is a key step in investigating the nature of the correlation between the growth and evolution of super massive black holes...
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