Hard X-ray detection of NGC 1068 with BeppoSAX

G. Matt, M. Guainazzi, F. Frontera, L. Bassani, W. N. Brandt, A. C. Fabian, F. Fiore, F. Haardt, K. Iwasawa, R. Maiolino, G. Malaguti, A. Marconi, A. Matteuzzi, S. Molendi, G. C. Perola, S. Piraino, L. Piro

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Abstract

We report on the first detection above ∼10 keV of the archetypal Compton-thick Seyfert 2 galaxy NGC 1068. This detection, obtained with the PDS instrument onboard BeppoSAX in the 20-100 keV range, confirms the hardness of the X-ray spectrum above a few keV (as indicated by ASCA observations) and supports models envisaging a mixture of both neutral and ionized reflections of an otherwise invisible nuclear continuum, the neutral reflection component being the dominant one in hard X-rays.

Original languageEnglish (US)
Pages (from-to)L13-L16
JournalAstronomy and Astrophysics
Volume325
Issue number2
StatePublished - Sep 10 1997

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All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Matt, G., Guainazzi, M., Frontera, F., Bassani, L., Brandt, W. N., Fabian, A. C., Fiore, F., Haardt, F., Iwasawa, K., Maiolino, R., Malaguti, G., Marconi, A., Matteuzzi, A., Molendi, S., Perola, G. C., Piraino, S., & Piro, L. (1997). Hard X-ray detection of NGC 1068 with BeppoSAX. Astronomy and Astrophysics, 325(2), L13-L16.