BeppoSAX observations of Seyfert 1s in the Piccinotti sample. I. poorly studied sources (Articolo in rivista)

Type
Label
  • BeppoSAX observations of Seyfert 1s in the Piccinotti sample. I. poorly studied sources (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Alternative label
  • Quadrelli, A.; Malizia, A.; Bassani, L.; Malaguti, G. (2003)
    BeppoSAX observations of Seyfert 1s in the Piccinotti sample. I. poorly studied sources
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Quadrelli, A.; Malizia, A.; Bassani, L.; Malaguti, G. (literal)
Pagina inizio
  • 77 (literal)
Pagina fine
  • 82 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 411 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Titolo
  • BeppoSAX observations of Seyfert 1s in the Piccinotti sample. I. poorly studied sources (literal)
Abstract
  • In this work we present the first of two papers devoted to the study of the X-ray spectral characteristics of Seyfert 1 galaxies in the Piccinotti sample. In particular we analyse here the BeppoSAX broad band (0.1-100 keV) data of 4 objects which, despite their X-ray brightness, have been historically poorly studied due to their late identification with an AGN; these are H0111-149 (MKN 1152), H0235-525 (ESO 198-G24), H0557-385 (IRAS F05563-3820) and H1846-786 (IRAS F18389-7834). We have assumed for all the sources a baseline model which includes a power law with an exponential cut-off plus a reflection component and an iron K_alpha line; we have also searched for the presence of intrinsic absorption and/or a soft excess component. Our analysis indicates the presence of complex absorption in two objects (H0557-385 and H0111-149) best described by a combination of two uniform absorbers, one cold and one warm. Only in one source, H0557-385, a soft excess component has been measured. The primary continuum is best described by a canonical power law (Gamma =1.7-2) with a high energy cut-off in the range 40-130 keV. A cold reflection component is likely present in all sources with values ranging from less than 0.6 to higher than 2. In 3 out of 4 objects we find a cold iron line having equivalent width typical of Seyfert 1s (100-200 eV). (literal)
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