eprintid: 10190966
rev_number: 6
eprint_status: archive
userid: 699
dir: disk0/10/19/09/66
datestamp: 2024-04-19 09:33:21
lastmod: 2024-04-19 09:33:21
status_changed: 2024-04-19 09:33:21
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Hussenot-Desenonges, T
creators_name: Wouters, T
creators_name: Guessoum, N
creators_name: Abdi, I
creators_name: Abulwfa, A
creators_name: Adami, C
creators_name: Agüí Fernández, JF
creators_name: Ahumada, T
creators_name: Aivazyan, V
creators_name: Akl, D
creators_name: Anand, S
creators_name: Andrade, CM
creators_name: Antier, S
creators_name: Ata, SA
creators_name: D'Avanzo, P
creators_name: Azzam, YA
creators_name: Baransky, A
creators_name: Basa, S
creators_name: Blazek, M
creators_name: Bendjoya, P
creators_name: Beradze, S
creators_name: Boumis, P
creators_name: Bremer, M
creators_name: Brivio, R
creators_name: Buat, V
creators_name: Bulla, M
creators_name: Burkhonov, O
creators_name: Burns, E
creators_name: Cenko, SB
creators_name: Coughlin, MW
creators_name: Corradi, W
creators_name: Daigne, F
creators_name: Dietrich, T
creators_name: Dornic, D
creators_name: Ducoin, JG
creators_name: Duverne, PA
creators_name: Elhosseiny, EG
creators_name: Elnagahy, FI
creators_name: El-Sadek, MA
creators_name: Ferro, M
creators_name: Le Floc'H, E
creators_name: Freeberg, M
creators_name: Fynbo, JPU
creators_name: Götz, D
creators_name: Gurbanov, E
creators_name: Hamed, GM
creators_name: Hasanov, E
creators_name: Healy, BF
creators_name: Heintz, KE
creators_name: Hello, P
creators_name: Inasaridze, R
creators_name: Iskandar, A
creators_name: Ismailov, N
creators_name: Izzo, L
creators_name: Jhawar, S
creators_name: Jegou du Laz, T
creators_name: Kamel, TM
creators_name: Karpov, S
creators_name: Klotz, A
creators_name: Koulouridis, E
creators_name: Kuin, NP
creators_name: Kochiashvili, N
creators_name: Leonini, S
creators_name: Lu, KX
creators_name: Malesani, DB
creators_name: Mašek, M
creators_name: Mao, J
creators_name: Melandri, A
creators_name: Mihov, BM
creators_name: Natsvlishvili, R
creators_name: Navarete, F
creators_name: Nedora, V
creators_name: Nicolas, J
creators_name: Odeh, M
creators_name: Palmerio, J
creators_name: Pang, PTH
creators_name: De Pasquale, M
creators_name: Peng, HW
creators_name: Pormente, S
creators_name: Peloton, J
creators_name: Pradier, T
creators_name: Pyshna, O
creators_name: Rajabov, Y
creators_name: Rakotondrainibe, NA
creators_name: Rivet, JP
creators_name: Rousselot, L
creators_name: Saccardi, A
creators_name: Sasaki, N
creators_name: Schneider, B
creators_name: Serrau, M
creators_name: Shokry, A
creators_name: Slavcheva-Mihova, L
creators_name: Simon, A
creators_name: Sokoliuk, O
creators_name: Srinivasaragavan, G
creators_name: Strausbaugh, R
creators_name: Takey, A
creators_name: Tanvir, NR
creators_name: Thöne, CC
creators_name: Tillayev, Y
title: Multiband analyses of the bright GRB 230812B and the associated SN2023pel
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F63
keywords: methods: statistical, techniques: photometric, techniques: spectroscopic, gamma-ray burst: individual: GRB 230812B, gamma-ray bursts, transients: supernovae
note: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
abstract: GRB 230812B is a bright and relatively nearby (z = 0.36) long gamma-ray burst (GRB) that has generated significant interest in the community and has thus been observed over the entire electromagnetic spectrum. We report over 80 observations in X-ray, ultraviolet, optical, infrared, and submillimetre bands from the GRANDMA (Global Rapid Advanced Network for Multimessenger Addicts) network of observatories and from observational partners. Adding complementary data from the literature, we then derive essential physical parameters associated with the ejecta and external properties (i.e. the geometry and environment) of the GRB and compare with other analyses of this event. We spectroscopically confirm the presence of an associated supernova, SN2023pel, and we derive a photospheric expansion velocity of v ∼ 17 × 103 km s-1. We analyse the photometric data first using empirical fits of the flux and then with full Bayesian inference. We again strongly establish the presence of a supernova in the data, with a maximum (pseudo-)bolometric luminosity of 5.75 × 1042 erg s-1, at 15.76+-10.2181 d (in the observer frame) after the trigger, with a half-max time width of 22.0 d. We compare these values with those of SN1998bw, SN2006aj, and SN2013dx. Our best-fitting model favours a very low density environment (log10(nISM/cm-3) = -2.38+-11.6045) and small values for the jet's core angle θcore = 1.54+-01.8102 deg and viewing angle θobs = 0.76+-01.7629 deg. GRB 230812B is thus one of the best observed afterglows with a distinctive supernova bump.
date: 2024-05-01
date_type: published
publisher: Oxford University Press (OUP)
official_url: http://dx.doi.org/10.1093/mnras/stae503
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2268257
doi: 10.1093/mnras/stae503
lyricists_name: Kuin, Nicolaas
lyricists_id: NPMKU93
actors_name: Bracey, Alan
actors_id: ABBRA90
actors_role: owner
full_text_status: public
publication: Monthly Notices of the Royal Astronomical Society
volume: 530
number: 1
pagerange: 1-19
issn: 0035-8711
citation:        Hussenot-Desenonges, T;    Wouters, T;    Guessoum, N;    Abdi, I;    Abulwfa, A;    Adami, C;    Agüí Fernández, JF;                                                                                                                                                                                                                                                                                                                                                                                     ... Tillayev, Y; + view all <#>        Hussenot-Desenonges, T;  Wouters, T;  Guessoum, N;  Abdi, I;  Abulwfa, A;  Adami, C;  Agüí Fernández, JF;  Ahumada, T;  Aivazyan, V;  Akl, D;  Anand, S;  Andrade, CM;  Antier, S;  Ata, SA;  D'Avanzo, P;  Azzam, YA;  Baransky, A;  Basa, S;  Blazek, M;  Bendjoya, P;  Beradze, S;  Boumis, P;  Bremer, M;  Brivio, R;  Buat, V;  Bulla, M;  Burkhonov, O;  Burns, E;  Cenko, SB;  Coughlin, MW;  Corradi, W;  Daigne, F;  Dietrich, T;  Dornic, D;  Ducoin, JG;  Duverne, PA;  Elhosseiny, EG;  Elnagahy, FI;  El-Sadek, MA;  Ferro, M;  Le Floc'H, E;  Freeberg, M;  Fynbo, JPU;  Götz, D;  Gurbanov, E;  Hamed, GM;  Hasanov, E;  Healy, BF;  Heintz, KE;  Hello, P;  Inasaridze, R;  Iskandar, A;  Ismailov, N;  Izzo, L;  Jhawar, S;  Jegou du Laz, T;  Kamel, TM;  Karpov, S;  Klotz, A;  Koulouridis, E;  Kuin, NP;  Kochiashvili, N;  Leonini, S;  Lu, KX;  Malesani, DB;  Mašek, M;  Mao, J;  Melandri, A;  Mihov, BM;  Natsvlishvili, R;  Navarete, F;  Nedora, V;  Nicolas, J;  Odeh, M;  Palmerio, J;  Pang, PTH;  De Pasquale, M;  Peng, HW;  Pormente, S;  Peloton, J;  Pradier, T;  Pyshna, O;  Rajabov, Y;  Rakotondrainibe, NA;  Rivet, JP;  Rousselot, L;  Saccardi, A;  Sasaki, N;  Schneider, B;  Serrau, M;  Shokry, A;  Slavcheva-Mihova, L;  Simon, A;  Sokoliuk, O;  Srinivasaragavan, G;  Strausbaugh, R;  Takey, A;  Tanvir, NR;  Thöne, CC;  Tillayev, Y;   - view fewer <#>    (2024)    Multiband analyses of the bright GRB 230812B and the associated SN2023pel.                   Monthly Notices of the Royal Astronomical Society , 530  (1)   pp. 1-19.    10.1093/mnras/stae503 <https://doi.org/10.1093/mnras%2Fstae503>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10190966/1/stae503%20%281%29.pdf