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Chromatic Afterglow of GRB 200829A
Astronomy Letters. 2023. Vol. 49. No. 3. P. 81 – 109.
N. S. Pankov, A. S. Pozanenko, Minaev P. Y., S. O. Belkin, Volnova A. A., Reva I. V., Serebryanskii A. V., Krugov M. A., Naroenkov S. A., Novichonok A. O., Zhornichenko A. A., Rumyantsev V. V., Antonyuk K. A., Egamberdiev S. A., Burkhonov O. A., Klunko E. V., Moskvitin A. S., Molotov I. E., Inasaridze R. Y.
Translator: V. Astakhov
We present the results of our analysis of multiwavelength observations for the long gamma-ray burst GRB 200829A. The burst redshift z≈1.29±0.04 has been determined photometrically at the afterglow phase. In gamma rays the event is one of the brightest (in isotropic equivalent), Eiso≳1054 erg. The multicolor light curve of the GRB 200829A afterglow is characterized by chromatic behavior and the presence of a plateau gradually transitioning into a power-law decay that can also be interpreted as a quasi-synchronous inhomogeneity (flare). We assume that the presence of a chromatic inhomogeneity in the early afterglow is consistent with the model of a structured jet.
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Overheating remains a critical limitation in high-performance electronic and computing systems,
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The τ-phase in Mn-Al-Ga alloys is a promising candidate for rare-earth-free permanent magnets. This study re-veals that the τ(γ₂)-phase in rapidly quenched Mn55Al36Ga9 ribbons contains a high density of dislocations, which
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Degtyarev A., Bakhurin S., Yudin N., DSPA 2026 P. 1–6
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With the beginning of a new gravitational-wave era in astronomy and astrophysics, the problem of identification of gamma-ray bursts optical counterparts is becoming more relevant than ever before. The application of existing methods for identifying transients, in particular image subtraction, is complicated by several factors; the main ones are the variability of observation conditions and ...
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Панков Н. С., Pozanenko A. S., Belkin S. et al., , in: Data Analytics and Management in Data Intensive Domains: 25th International Conference, DAMDID/RCDL 2023, Moscow, Russia, October 24–27, 2023, Revised Selected PapersVol. 2086: Communications in Computer and Information Science.: Springer, 2024. P. 225–245.
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Belkin S., Pozanenko A. S., Minaev P. Y. et al., Monthly Notices of the Royal Astronomical Society 2024 Vol. 527 No. 4 P. 11507–11520
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Pankov N.S., Pozanenko A. S., Minaev P. Y. et al., Astronomy Letters 2023 Vol. 49 No. 3 P. 81–109
We present the results of our analysis of multiwavelength observations for the long gamma-ray burst GRB 200829A. The burst redshift z≈1.29±0.04 has been determined photometrically at the afterglow phase. In gamma rays the event is one of the brightest (in isotropic equivalent), Eiso≳1054 erg. The multicolor light curve of the GRB 200829A afterglow is characterized by chromatic ...
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Oganesyan G., Karpov S., Salafia O. S. et al., NATURE ASTRONOMY 2023 Vol. 7 P. 843–855
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