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Title: The 2012 flare of PG 1553+113 seen with H.E.S.S. and Fermi-LAT

Journal Article · · The Astrophysical Journal (Online)
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Very high energy (VHE, E > 100 GeV) γ-ray flaring activity of the high-frequency peaked BL Lac object PG 1553+113 has been detected by the H.E.S.S. telescopes. Also, the flux of the source increased by a factor of 3 during the nights of 2012 April 26 and 27 with respect to the archival measurements with a hint of intra-night variability. No counterpart of this event has been detected in the Fermi-Large Area Telescope data. This pattern is consistent with VHE γ-ray flaring being caused by the injection of ultrarelativistic particles, emitting γ-rays at the highest energies. The dataset offers a unique opportunity to constrain the redshift of this source at z = 0.49 ± 0.04 using a novel method based on Bayesian statistics. In addition, the indication of intra-night variability is used to introduce a novel method to probe for a possible Lorentz invariance violation (LIV), and to set limits on the energy scale at which Quantum Gravity (QG) effects causing LIV may arise. For the subluminal case, the derived limits are EQG,1 > 4.10 × 1017 GeV and EQG,2 > 2.10 × 1010 GeV for linear and quadratic LIV effects, respectively.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Contributing Organization:
Fermi-LAT Collaboration; H.E.S.S. Collaboration
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1355172
Alternate ID(s):
OSTI ID: 22522024
Journal Information:
The Astrophysical Journal (Online), Journal Name: The Astrophysical Journal (Online) Journal Issue: 1 Vol. 802; ISSN 1538-4357
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English

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The Physical Origins of the Identified and Still Missing Components of the Warm–Hot Intergalactic Medium: Insights from Deep Surveys in the Field of Blazar 1ES1553+113 journal October 2019
THE EXTRAGALACTIC BACKGROUND LIGHT, THE HUBBLE CONSTANT, AND ANOMALIES: CONCLUSIONS FROM 20 YEARS OF TeV GAMMA-RAY OBSERVATIONS journal October 2015
Optical Flux and Spectral Variability of the TeV Blazar PG 1553+113 journal January 2019
Multi-TeV Flaring from High-energy Blazars: An Evidence of the Photohadronic Process journal October 2019
Probing the very high energy γ-ray spectral curvature in the blazar PG 1553+113 with the MAGIC telescopes text January 2015
Probing the very high energy $\gamma$-ray spectral curvature in the blazar PG 1553+113 with the MAGIC telescopes text January 2015
High energy neutrino flux from individual blazar flares text January 2019
Gamma-ray blazar spectra with H.E.S.S. II mono analysis: The case of PKS 2155−304 and PG 1553+113 journal April 2017
Probing the very high energy γ-ray spectral curvature in the blazar PG 1553+113 with the MAGIC telescopes journal May 2015
High-energy neutrino flux from individual blazar flares journal September 2019
Constraints on the emission region of 3C 279 during strong flares in 2014 and 2015 through VHE γ -ray observations with H.E.S.S. journal July 2019
Baryon Loading Efficiency and Particle Acceleration Efficiency of Relativistic Jets: Cases For Low Luminosity BL Lacs text January 2016
Constraints on the emission region of 3C 279 during strong flares in 2014 and 2015 through VHE γ -ray observations with H.E.S.S. text January 2019
Constraints on the emission region of 3C 279 during strong flares in 2014 and 2015 through VHE gamma-ray observations with H.E.S.S text January 2019
Gamma-ray blazar spectra with H.E.S.S. II mono analysis: the case of PKS 2155-304 and PG 1553+113 text January 2016
Multi-TeV flaring from high energy blazars: An evidence of the photohadronic process text January 2019
Cosmic infrared background excess from axion-like particles and implications for multi-messenger observations of blazars text January 2018
Baryon Loading Efficiency and Particle Acceleration Efficiency of Relativistic Jets: Cases for low Luminosity bl lacs journal August 2016
The extragalactic background light, the Hubble constant, and anomalies: conclusions from 20 years of TeV gamma-ray observations text January 2015
Cosmic infrared background excess from axionlike particles and implications for multimessenger observations of blazars journal January 2019