9/11/2023 0 Comments Optical telescope 100nm![]() ![]() SVOM: a joint gamma-ray burst detection mission. Constraints on the Physics of the prompt emission from distant and energetic gamma-ray burst GRB 220101A. The optical flare and afterglow light curve of GRB 050904 at redshift z = 6.29. The photospheric radiation model for the prompt emission of gamma-ray bursts: interpreting four observed correlations. Lorentz-factor–isotropic-luminosity/energy correlations of gamma-ray bursts and their interpretation. Detection of a Very bright optical flare from the gamma-ray burst GRB 050904 at redshift 6.29. GRB 220101A : Eiso equals the maximum isotropic GRB energy. GRB 220101A: Xinglong-2.16m photometry and spectroscopy. GRB 220101A: Swift detection of a burst with a bright optical counterpart. The measurement errors in the Swift-UVOT and XMM-OM. Photometric calibration of the Swift ultraviolet/optical telescope. The use and calibration of read-out streaks to increase the dynamic range of the Swift Ultraviolet/Optical Telescope. A large catalog of homogeneous ultra-violet/optical GRB afterglows: temporal and spectral evolution. Prompt optical emission from residual collisions in gamma-ray burst outflows. Naked-eye optical flash from gamma-ray burst 080319B: tracing the decaying neutrons in the outflow. Broadband observations of the naked-eye γ-ray burst GRB080319B. Gamma-ray burst early optical afterglows: implications for the initial Lorentz factor and the central engine. Optical flash of GRB 990123: constraints on the physical parameters of the reverse shock. GRB 990123: reverse and internal shock flashes and late afterglow behaviour. ![]() Predictions for the very early afterglow and the optical flash. Decay of the GRB 990123 optical afterglow: implications for the fireball model. Observation of contemporaneous optical radiation from a γ-ray burst. Optical and long-wavelength afterglow from gamma-ray bursts. The physics of gamma-ray bursts & relativistic jets. This finding reveals the diverse origins of the extremely energetic optical–ultraviolet flares and demonstrates the necessity of high-time-resolution observations at early times.įishman, G. Instead of either internal shocks or reverse shock, this extremely energetic optical–ultraviolet flare 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. In contrast to GRB 080319B, the temporal behaviour of this new flare does not trace the gamma-ray activity. 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 150 s exposure of GRB 220101A, a burst at a redshift of 4.618, and report a rapidly evolving optical–ultraviolet flare with a high absolute AB magnitude of −39.4 ± 0.2. Such flares are widely attributed to internal shock or external reverse shock radiation. Hyperluminous optical–ultraviolet flares have been detected in gamma-ray bursts and the luminosity record was held by naked-eye event GRB 080319B.
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