INTEGRAL observations of the field of the BL Lacertae object S5~0716+714

Abstract

We have performed observations of the blazar S5 0716+714 with INTEGRAL on 2-6 April 2004. In the first months of 2004, the source had increased steadily in optical brightness and had undergone two outbursts. During the latter, occurred in March, it reached the extreme level of R = 12.1 mag, which triggered our INTEGRAL program. The target has been detected with IBIS/ISGRI up to 60 keV, with a flux of ~3 x 10e-11 erg/s/cm2 in the 30-60 keV interval, a factor of ~2 higher than observed by the BeppoSAX PDS in October 2000. In the field of S5 0716+714 we have also detected the Flat Spectrum Radio Quasar S5 0836+710 and the two Seyfert galaxies Mkn 3 and Mkn 6. Their IBIS/ISGRI spectra are rather flat, albeit consistent with those measured by BeppoSAX. In the spectrum of Mkn 3 we find some evidence of a break between ~60 and ~100 keV, reminiscent of the high energy cut-offs observed in other Seyfert galaxies. This is the first report of INTEGRAL spectra of weak Active Galactic Nuclei.

arXiv comment5 pages, 5 figures, in press in A&A

References in corpus (23)

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• ISGRI: the INTEGRAL Soft Gamma-Ray Imager
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Cited by in corpus (19)

• Multi-colour optical monitoring of eight red blazars
• Long-term optical monitoring of TeV emitting Blazars
• Optical Intra-day Variability in Blazars
• The First INTEGRAL AGN Catalog
• Testing the inverse-Compton catastrophe scenario in the intra-day variable blazar S5 0716+71, III. Rapid and correlated flux density variability from radio to sub-mm bands
• Testing the inverse-Compton catastrophe scenario in the intra-day variable blazar S5 0716+71. I. Simultaneous broadband observations during November 2003
• INTEGRAL observations of the blazar 3C454.3 in outburst
• Simultaneous X-ray and optical observations of S5 0716+714 after the outburst of March 2004
• The Hard X-ray 20-40 keV AGN Luminosity Function
• XMM-Newton observations of a sample of gamma-ray loud active galactic nuclei
• INTEGRAL observations of AGN in the Galactic Plane
• Swift observations of IBL and LBL objects
• INTEGRAL view of AGN
• A Short Hard X-ray Flare from the Blazar NRAO 530 Observed by INTEGRAL
• A Quasi-Periodic Modulation of the Radio Light Curve of the Blazar PKS B0048-097
• A synchrotron self-Compton model with low energy electron cut-off for the blazar S5 0716+714
• Hard X-ray properties of radio-selected blazars
• INTEGRAL observations of the GeV blazar PKS1502+106 and of the hard X-ray bright Seyfert Galaxy Mkn841
• Variability Study and Searching for QPOs with day-like periods in the blazar S5 0716+714 with TESS