Unveiling the nature of INTEGRAL objects through optical spectroscopy V. Identification and properties of 21 southern hard X-ray sources

NICOLA MASETTI, L. Morelli, E. Palazzi, G. Galaz, L. Bassani, A. Bazzano, A. J. Bird, A. J. Dean, G. L. Israel, R. Landi, A. Malizia, D. Minniti, F. Schiavone, J. B. Stephen, P. Ubertini, R. Walter

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

124 Citas (Scopus)

Resumen

Optical spectroscopic identification of the nature of 21 unidentified southern hard X-ray objects is reported here in the framework of our campaign aimed at determining the nature of newly-discovered and/or unidentified sources detected by INTEGRAL. Our results show that 5 of these objects are magnetic Cataclysmic Variables (CVs), 4 are High-Mass X-ray Binaries (HMXBs; one of which is in the Large Magellanic Cloud) and 12 are Active Galactic Nuclei (AGNs). When feasible, the main physical parameters for these hard X-ray sources are also computed using the multiwavelength information available in the literature. These identifications further underscore the importance of INTEGRAL in the study of the hard X-ray spectrum of AGNs, HMXBs and CVs, and the usefulness of a strategy of catalogues cross-correlation plus optical spectroscopy to securely pinpoint the actual nature of the X-ray sources detected with INTEGRAL.

Idioma originalInglés
Páginas (desde-hasta)21-30
Número de páginas10
PublicaciónAstronomy and Astrophysics
Volumen459
N.º1
DOI
EstadoPublicada - nov 2006

Áreas temáticas de ASJC Scopus

  • Astronomía y astrofísica
  • Ciencias planetarias y espacial

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