Skip to main content
Article thumbnail
Location of Repository

New AGN classifications in the Swift/BAT All-Sky Hard X-ray Survey

By Pietro Parisi and for the IBIS Team

Abstract

Through an optical campaign performed at the San Pedro Martir (Mexico) Telescope and using the 6dF archive (http://www.aao.gov.au/local/www/6df, Jones et al. 2004), we determine or give a better classification for 8 newly discovered Active Galactic Nuclei (AGN) in the Swift/BAT 22-months All-sky Hard X-ray Survey (Baumgartner et al. 2008, Tueller et al. 2010). All these objects have observations taken with Swift/XRT or Chandra or XMM archival data which allowed us to pinpoint their optical counterpart thanks to the precise (better than a few arcsec) soft X-ray positions afforded by these observatories. This information enabled us to obtain optical spectra of all these counterparts, since only three spectra are available on-line, but not flux calibrated, allowing us to reveal their real nature (Baumgartner et al. 2008 give only a tentative classification based upon their X-ray properties). Here we present the spectra, along with the corresponding finding charts obtained from the DSS-II red survey, of these 8 sources. We found that our sample is composed of 7 Seyfert 2 and one Seyfert 1, with redshift between 0.009 and 0.068.Comment: 5 pages, 2 figures, 1 table; Poster. Published in the proceedings of "The restless Gamma-ray Universe", September 27-30, 2010, Dublin, Irelan

Topics: Astrophysics - Cosmology and Nongalactic Astrophysics
Year: 2011
OAI identifier: oai:arXiv.org:1105.0527
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://arxiv.org/abs/1105.0527 (external link)
  • http://www.aao.gov.au/local/ww... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.