An optical-ultraviolet flare with absolute AB magnitude of -39.4 detected in GRB 220101A

Abstract

Hyperluminous optical-ultraviolet fares have been detected in gamma-ray bursts and the luminosity record was held by naked-eye event GRB 080319B. Such fares are widely attributed to internal shock or external reverse shock radiation. Here, with a new method developed to derive reliable photometry from saturated sources of Swift/UVOT, we carry out time-resolved analysis of the initial white-band 150s exposure of GRB 220101A, a burst at a redshift of 4.618, and report a rapidly evolving optical-ultraviolet fare with a high absolute AB magnitude of -39.4$\pm$0.2. In contrast to GRB 080319B, the temporal behaviour of this new fare does not trace the gamma-ray activity. Instead of either internal shocks or reverse shock, this extremely energetic optical-ultraviolet fare is most likely to originate from the refreshed shocks induced by the late-ejected extremely energetic material catching up with the earlier-launched decelerating outflow. This finding reveals the diverse origins of the extremely energetic optical-ultraviolet fares and demonstrates the necessity of high-time-resolution observations at early times.

arXiv commentPublished in Nature Astronomy, the definitive version is available at https://www.nature.com/articles/s41550-023-02005-w

References in corpus (36)

• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• The Physics of Gamma-Ray Bursts
• Methods and results of an automatic analysis of a complete sample of Swift-XRT observations of GRBs
• Gamma-Ray Bursts and the Fireball Model
• Optical and Long Wavelength Afterglow from Gamma-Ray Bursts
• Photometric Calibration of the Swift Ultraviolet/Optical Telescope
• The Physics of Gamma-Ray Bursts and Relativistic Jets
• An online repository of Swift/XRT light curves of GRBs
• Theories of Gamma-Ray Bursts
• Observation of contemporaneous optical radiation from a gamma-ray burst
• Predictions for The Very Early Afterglow and The Optical Flash
• Gamma-ray burst early optical afterglows: implications for the initial Lorentz factor and the central engine
• GRB 990123: Reverse and Internal Shock Flashes and Late Afterglow
• Gamma-ray burst early afterglows: reverse shock emission from an arbitrarily magnetized ejecta
• Paper II: Calibration of the Swift ultraviolet/optical telescope
• Relativistic Shocks: Particle Acceleration and Magnetization
• GRB 130427A: a Nearby Ordinary Monster
• Lorentz Factor-Isotropic Luminosity/Energy Correlations of GRBS and Their Interpretation
• Optical Flash of GRB 990123: constraints on the physical parameter of the reverse shock
• GRB 100219A with X-shooter - abundances in a galaxy at z = 4.7
• Detection of a very bright optical flare from a gamma-ray burst at redshift 6.29
• The very early afterglow powered by the ultra-relativistic mildly magnetized outflows
• Signatures of a Maxwellian Component in Shock-Accelerated Electrons in GRBs
• Low-energy Spectra of Gamma-ray Bursts from Cooling Electrons
• The photospheric radiation model for the prompt emission of Gamma-ray Bursts: Interpreting four observed correlations
• The optical flare and afterglow light curve of GRB 050904 at redshift z=6.29
• Gamma-Ray Burst at the extreme: "the naked-eye burst" GRB 080319B
• The Swift-UVOT ultraviolet and visible grism calibration
• Imprints of Electron-positron Winds on the Multi-wavelength Afterglows of Gamma-ray Bursts
• The use and calibration of read-out streaks to increase the dynamic range of the Swift Ultraviolet/Optical Telescope
• Prompt optical emission from residual collisions in GRB outflows
• The measurement errors in the Swift-UVOT and XMM-OM
• Naked-eye optical flash from GRB 080319B: Tracing the decaying neutrons in the outflow
• A Large Catalog of Homogeneous Ultra-Violet/Optical GRB Afterglows: Temporal and Spectral Evolution
• Constrains on the physics of the prompt emission from a distant and energetic gamma-ray burst GRB 220101A
• VLT identification of the optical afterglow of the gamma-ray burst GRB 000131 at z=4.50

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