SVOM GRB 250314A at z ≃ 7.3: An exploding star in the era of re-ionization
| Title: | SVOM GRB 250314A at z ≃ 7.3: An exploding star in the era of re-ionization |
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| Authors: | B Cordier; JY Wei; Nial Tanvir; SD Vergani; DB Malesani; JPU Fynbo; A de Ugarte Postigo; A Saccardi; F Daigne; J-L Atteia; O Godet; D Götz; YL Qiu; S Schanne; LP Xin; B Zhang; SN Zhang; AJ Nayana; L Piro; H Fausey; B Schneider; AJ Levan; AL Thakur; ZP Zhu; G Corcoran; NA Rakotondrainibe; V D’Elia; D Turpin; JF Agüí Fernández; MA Aloy; J An; M Bai; S Basa; MG Bernardini; A Bochenek; R Brivio; M Brunet; G Bruni; SB Cenko; Q Cheng; A Chrimes; L Christensen; A Claret; A Coleiro; L Cotter; S Crepaldi; JS Deng; Dimple; YW Dong; D Dornic; Phil Evans; RAJ Eyles-Ferris; M Ferro; L Galbany; M Garnichey; G Gianfagna; BP Gompertz; H Goto; N Habeeb; PY Han; XH Han; DH Hartmann; KE Heintz; JY Hu; MH Huang; L Izzo; P Jakobsson; JA Kennea; C Lachaud; T Laskar; D Li; HL Li; RZ Li; X Liu; Y Liu; G Lombardi; H Louvin; P Maggi; T Maiolino; QY Mao; A Martin-Carrillo; K Mercier; P O’Brien; JT Palmerio; P Petitjean; DLA Pieterse; F Piron; G Pugliese; BC Rayson; T Reynolds; F Robinet; A Rossi; R Salvaterra; CC Thöne; B Topçu; CW Wang; J Wang; Y Wang; C Wu; SL Xiong; D Xu; HN Yang; WM Yuan; YH Zhang; XF Zhang; SJ Zheng |
| Publication Year: | 2025 |
| Collection: | University of Leicester: Figshare |
| Subject Terms: | Physical sciences; Astronomical sciences; Particle and high energy physics; Space sciences; gamma-ray burst: general; galaxies: high-redshift; gamma-ray burst: individual: GRB250314A |
| Description: | Most long gamma-ray bursts (LGRBs) originate from a rare type of massive stellar explosion. Their afterglows, while rapidly fading, can initially be extremely luminous at optical and near-infrared wavelengths, making them detectable at large cosmological distances. Here we report the detection and observations of GRB 250314A by the SVOM satellite and the subsequent follow-up campaign that led to the discovery of the near-infrared afterglow and spectroscopic measurements of its redshift z ≃ 7.3. This burst occurred when the Universe was only about 5% of its current age. We discuss the signature of these rare events within the context of the SVOM operating model and the ways to optimise their identification with adapted ground follow-up observation strategies. |
| Document Type: | article in journal/newspaper |
| Language: | unknown |
| Relation: | 2381/31078573.v1 |
| Availability: | https://figshare.com/articles/journal_contribution/SVOM_GRB_250314A_at___i_z_i____7_3_An_exploding_star_in_the_era_of_re-ionization/31078573 |
| Rights: | CC BY 4.0 |
| Accession Number: | edsbas.7F27B930 |
| Database: | BASE |