Intergalactic magnetic field studies by means of $\gamma$-ray emission from GRB 190114C

Abstract

The presence of delayed GeV emission after a strong transient, such as a GRB (Gamma-Ray Burst), in the VHE (Very-High Energy, $E>100$ GeV) band can be the signature of a non-zero magnetic field in the intergalactic medium. We used a synchrotron self-Compton multiwavelength model to infer an analytical description of the intrinsic VHE spectrum (corrected for absorption by the Extragalactic Background Light, EBL) of GRB190114C to predict the lightcurves and SEDs of the delayed emission with Monte Carlo simulations for different IGMF (Intergalactic Magnetic Field) configurations (strengths $B=8\times 10^{-21}$ G, $10^{-20}$ G, $3\times 10^{-20}$G and correlation length $\lambda >1$ Mpc), and compared them with the Fermi-LAT (Fermi Large Area Telescope) limits computed for several exposure times. We found that Fermi LAT is not sensitive enough to constrain any IGMF strengths using GRB190114C.

arXiv comment8 pages, 3 figures, accepted for publication to Physical Review D

References in corpus (37)

• The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission
• Fermi Large Area Telescope Fourth Source Catalog
• Magnetic Fields in the Early Universe
• Origin of Galactic and Extragalactic Magnetic Fields
• The extragalactic optical-infrared background radiations, their time evolution and the cosmic photon-photon opacity
• Cosmological Magnetic Fields: Their Generation, Evolution and Observation
• The Fermi Large Area Telescope On Orbit: Event Classification, Instrument Response Functions, and Calibration
• On the Origin of Cosmic Magnetic Fields
• CRPropa 3 - a Public Astrophysical Simulation Framework for Propagating Extraterrestrial Ultra-High Energy Particles
• An Improved Distance to NGC 4258 and its Implications for the Hubble Constant
• Teraelectronvolt emission from the $\gamma$-ray burst GRB 190114C
• The Cosmological Impact of Luminous TeV Blazars I: Implications of Plasma Instabilities for the Intergalactic Magnetic Field and Extragalactic Gamma-Ray Background
• Time Delay of Cascade Radiation for TeV Blazars and the Measurement of the Intergalactic Magnetic Field
• Observation of inverse Compton emission from a long $\gamma$-ray burst
• Relieving the Hubble tension with primordial magnetic fields
• Sensitivity of gamma-ray telescopes for detection of magnetic fields in intergalactic medium
• New limits on extragalactic magnetic fields from rotation measures
• Revealing x-ray and gamma ray temporal and spectral similarities in the GRB 190829A afterglow
• Relativistic Pair Beams from TeV Blazars: A Source of Reprocessed GeV Emission rather than IGM Heating
• Probing Intergalactic Magnetic Fields in the GLAST Era through Pair Echo Emission from TeV Blazars
• Relaxation of Blazar Induced Pair Beams in Cosmic Voids
• Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-Energy Emission from Prompt to Afterglow
• Probing the Nature of the Weakest Intergalactic Magnetic Fields with the High Energy Emission of Gamma-Ray Bursts
• Plasma effects on fast pair beams II. Reactive versus kinetic instability of parallel electrostatic wave
• The electrostatic instability for realistic pair distributions in blazar/EBL cascades
• GRB 190114C: from prompt to afterglow?
• The Impact of Plasma Instabilities on the Spectra of TeV Blazars
• The Linear Instability of Dilute Ultrarelativistic $e^{\pm }$ Pair Beams
• ELMAG 3.01: A three-dimensional Monte Carlo simulation of electromagnetic cascades on the extragalactic background light and in magnetic fields
• Probing Early Cosmic Magnetic Fields through Pair Echos from High-Redshift GRBs
• Possible Effects of Pair Echoes on Gamma-Ray Burst Afterglow Emission
• Plasma effects on relativistic pair beams from TeV blazars: PIC simulations and analytical predictions
• Properties of the Intergalactic Magnetic Field Constrained by Gamma-ray Observations of Gamma-Ray Bursts
• Constraints on the intergalactic magnetic field from $\gamma$-ray observations of GRB 190114C
• Suppression of the TeV pair-beam plasma instability by a tangled weak intergalactic magnetic field
• Can we constrain the extragalactic magnetic field from very high energy observations of GRB 190114C?
• The large gamma-ray flare of the FSRQ PKS 0346-27

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