Swift/XRT view on S5 0716+714 during a flare

Abstract

The blazar S5 0716+714 has been monitored in its flaring state between 2015 January 19 and February 22 with Swift/XRT. During this period an exceptional flux level was observed in the X-ray range as well as in the other wavelengths, e.g. optical, near infrared and very high energy $\gamma$ rays. Here, we report X-ray observations of S5 0716+714 carried out during the outburst. The observed X-ray spectra, well described with broken power-law model, disentangle both synchrotron and inverse Compton components. The break energy shifts towards higher energies with increasing flux, revealing the dominance of synchrotron radiation in the X-ray spectrum observed. We also report spectrum softening with increasing flux. During the recent flare, significant temporal intranight variability is observed in the X-ray range.

Published in MNRAS

References in corpus (3)

• Simultaneous X-ray and optical observations of S5 0716+714 after the outburst of March 2004
• Disentangling the synchrotron and Inverse Compton variability in the X-ray emission of the intermediate BL Lac object S5 0716+71
• Rapid high-amplitude gamma-ray variability in Blazar PKS 0507+17

Cited by in corpus (9)

• X-ray spectral studies of TeV gamma-ray emitting blazars
• First hard X-ray observations of the blazar S5 0716+714 with NuSTAR during a multiwavelength campaign
• Signature of Inverse Compton emission from blazars
• Characterizing long-term optical, ultraviolet and X-ray variability in different activity states of OJ 287
• Intra-Night Optical Variability Monitoring of Fermi Blazars: First Results from 1.3 m J C Bhattacharya Telescope
• Multi-color optical monitoring of the BL Lacertae object S5 0716+714 during the 2012 outburst
• A 31.3 day Transient Quasiperiodic Oscillation in Gamma-ray Emission from Blazar S5 0716+714
• H.E.S.S. Monitoring of PKS 2155-304 in 2015 and 2016
• Hard X-ray properties of radio-selected blazars