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Caballero-Garcia, M. G. Richer, N. Budnev, N. R. Butler, N. Tiurina, N. Tungalag, O. Gress, P. Balanutsa, P. Y. Minaev, Rahul Gupta, R. Querel, R. Sanchez-Ramirez, S. Castillo-Carrion, S. E. Schmalz, S. Guziy, Shashi. B. Pandey, S. Jeong, S. R. Oates, V. Kornilov, V. Lipunov, William H. Lee, Yash Sharma, Y.-D. Hu, Y. Fan","submitted_at":"2026-05-29T10:40:58Z","abstract_excerpt":"Context. This article presents a detailed multi-wavelength analysis of GRB 140304A at z = 5.282, having uncommon late-time flaring features. The aim is to study GRB 140304A and other similar bursts to understand stellar evolution and formation processes at high-z. Aims. GRBs at high-z, possible flaring activities at different frequencies seen at relatively late-times, help to constrain temporal correlation among contemporaneous flares. In the present study, we plan to constrain such a temporal and spectral study for a sample of high-z bursts, including GRB 140304A. Methods. 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Castellon, A. J. Castro-Tirado, A. Kutyrev, A. Kuznetsov, Amar Aryan, Amit. K. Ror, A. M. Watson, A. Pozanenko, A. Valeev, A. Volnova, B.-B. Zhang, Brajesh Kumar, C. G. Mundell, Ch. Cui, Ch. Wang, C. Perez del Pulgar, D. Hiriart, D. Xu, E. Gorbovskoy, E. V. Klunko, G. Antipov, G. Garcia-Segura, I. H. Park, J. Bai, J. Bloom, K. Zhirkov, Maria Gritsevich, M. D. Caballero-Garcia, M. G. Richer, N. Budnev, N. R. Butler, N. Tiurina, N. Tungalag, O. Gress, P. Balanutsa, P. Y. Minaev, Rahul Gupta, R. Querel, R. Sanchez-Ramirez, S. Castillo-Carrion, S. E. Schmalz, S. Guziy, Shashi. B. Pandey, S. Jeong, S. R. Oates, V. Kornilov, V. Lipunov, William H. Lee, Yash Sharma, Y.-D. Hu, Y. Fan","submitted_at":"2026-05-29T10:40:58Z","abstract_excerpt":"Context. This article presents a detailed multi-wavelength analysis of GRB 140304A at z = 5.282, having uncommon late-time flaring features. 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