Extragalactic Magnetar Giant Flare GRB 231115A: Insights from Fermi/GBM Observations

Abstract

We present the detection and analysis of GRB 231115A, a candidate extragalactic magnetar giant flare (MGF) observed by Fermi/GBM and localized by INTEGRAL to the starburst galaxy M82. This burst exhibits distinctive temporal and spectral characteristics that align with known MGFs, including a short duration and a high peak energy. Gamma-ray analyses reveal significant insights into this burst, supporting conclusions already established in the literature: our time-resolved spectral studies provide further evidence that GRB 231115A is indeed a MGF. Significance calculations also suggest a robust association with M82, further supported by a high Bayes factor that minimizes the probability of chance alignment with a neutron star merger. Despite extensive follow-up efforts, no contemporaneous gravitational wave or radio emissions were detected. The lack of radio emission sets stringent upper limits on possible radio luminosity. Constraints from our analysis show no fast radio bursts (FRBs) associated with two MGFs. X-ray observations conducted post-burst by Swift/XRT and XMM/Newton provided additional data, though no persistent counterparts were identified. Our study underscores the importance of coordinated multi-wavelength follow-up and highlights the potential of MGFs to enhance our understanding of short GRBs and magnetar activities in the cosmos. Current MGF identification and follow-up implementation are insufficient for detecting expected counterparts; however, improvements in these areas may allow for the recovery of follow-up signals with existing instruments. Future advancements in observational technologies and methodologies will be crucial in furthering these studies.

References in corpus (56)

• GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2
• GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
• The Supernova -- Gamma-Ray Burst Connection
• The Fermi Gamma-Ray Burst Monitor
• The Burst Alert Telescope (BAT) on the Swift MIDEX Mission
• An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A
• Magnetars
• Short-Hard Gamma-Ray Bursts
• The McGill Magnetar Catalog
• Studies in Astronomical Time Series Analysis. VI. Bayesian Block Representations
• An exceptionally bright flare from SGR1806-20 and the origins of short-duration gamma-ray bursts
• Gamma-Ray Observations of a Giant Flare from The Magnetar SGR 1806-20
• A Decade of Short-duration Gamma-ray Burst Broad-band Afterglows: Energetics, Circumburst Densities, and Jet Opening Angles
• The First CHIME/FRB Fast Radio Burst Catalog
• A giant, periodic flare from the soft gamma repeater SGR1900+14
• A model for fast extragalactic radio bursts
• Unifying the observational diversity of isolated neutron stars via magneto-thermal evolution models
• Fast radio bursts as synchrotron maser emission from decelerating relativistic blast waves
• The Fermi GBM Gamma-Ray Burst Spectral Catalog: Four Years Of Data
• A Kilonova Following a Long-Duration Gamma-Ray Burst at 350 Mpc
• The Pan-STARRS 1 Photometric Reference Ladder, Release 12.0
• Overview to the Hard X-ray Modulation Telescope (Insight-HXMT) Satellite
• The Fourth Fermi-GBM Gamma-Ray Burst Catalog: A Decade of Data
• A flaring magnetar in FRB 121102?
• A nearby long gamma-ray burst from a merger of compact objects
• The Fermi GBM Gamma-Ray Burst Spectral Catalog: 10 Years of Data
• Variable Spin-down in the Soft Gamma Repeater SGR 1900+14 and Correlations with Burst Activity
• The BATSE 5B Gamma-Ray Burst Spectral Catalog
• The Quiescent Counterpart of the Soft Gamma-ray Repeater SGR 0526-66
• A bright gamma-ray flare interpreted as a giant magnetar flare in NGC 253
• A Giant Flare from a Soft Gamma Repeater in the Andromeda Galaxy, M31
• Radio Non-Detection of the SGR 1806-20 Giant Flare and Implications for Fast Radio Bursts
• A Giant Outburst from SGR 1900+14 Observed with the BeppoSAX Gamma Ray Burst Monitor
• Modeling magnetar outbursts: Flux enhancements and the connection with short bursts and glitches
• On the Possibility of Identification of a Short/Hard Burst GRB 051103 with the Giant Flare from a Soft Gamma Repeater in the M81 Group of Galaxies
• The Energy-Dependence of GRB Minimum Variability Timescales
• The NICER View of the 2020 Burst Storm and Persistent Emission of SGR 1935+2154
• Structure of Brightest Cluster Galaxies and Intracluster Light
• Giant Flare in SGR 1806-20 and Its Compton Reflection from the Moon
• Implications For The Origin Of GRB 051103 From LIGO Observations
• Image reduction pipeline for the detection of variable sources in highly crowded fields
• Rapid Spectral Variability of a Giant Flare from a Magnetar in NGC 253
• Identification of a Local Sample of Gamma-Ray Bursts Consistent with a Magnetar Giant Flare Origin
• Fermi/GBM View of the 2019 and 2020 Burst Active Episodes of SGR J1935+2154
• An X-Ray Study of Supernova Remnant N49 and Soft Gamma-Ray Repeater 0526-66 in the Large Magellanic Cloud
• A new analysis of the short-duration, hard-spectrum GRB 051103, a possible extragalactic SGR giant flare
• Image Subtraction in Fourier Space
• GRB 070201: A possible Soft Gamma Ray Repeater in M31
• The short-hard GRB 051103: Observations and implications for its nature
• Temporal Deconvolution study of Long and Short Gamma-Ray Burst Light curves
• The Giant Flare of December 27, 2004 from SGR 1806-20
• The 1979, March 5 Gamma-Ray Transient: Was it a Classic Gamma-Ray Burst?
• The 64 Mpixel wide field imager for the Wendelstein 2m Telescope: Design and Calibration
• Extreme Variability in a Long Duration Gamma-ray Burst Associated with a Kilonova
• Searching for quasi-periodic oscillations in astrophysical transients using Gaussian processes
• A targeted search for FRB counterparts with Konus-Wind

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• From Rare Events to a Population: Discovering Overlooked Extragalactic Magnetar Giant Flare Candidates in Archival Fermi Gamma-ray Burst Monitor Data