TY - JOUR
T1 - Understanding the nature of the optical emission in gamma-ray bursts
T2 - analysis from TAROT, COATLI, and RATIR observations
AU - Becerra, R. L.
AU - Klotz, A.
AU - Atteia, J. L.
AU - Guetta, D.
AU - Watson, A. M.
AU - De Colle, F.
AU - Angulo-Valdez, C.
AU - Butler, N. R.
AU - Dichiara, S.
AU - Fraija, N.
AU - Garcia-Cifuentes, K.
AU - Kutyrev, A. S.
AU - Lee, W. H.
AU - Pereyra, M.
AU - Troja, E.
N1 - Publisher Copyright:
©E0) ∼1053.6 erg), opening angle (
PY - 2023/11/1
Y1 - 2023/11/1
N2 - We collected the optical light-curve data of 227 gamma-ray bursts (GRBs) observed with the TAROT, COATLI, and RATIR telescopes. These consist of 133 detections and 94 upper limits. We constructed average light curves in the observer and rest frames in both X-rays (from Swift/X-Ray Telescope) and the optical. Our analysis focused on investigating the observational and intrinsic properties of GRBs. Specifically, we examined observational properties, such as the optical brightness function of the GRBs at T = 1000 s after the trigger, as well as the temporal slope of the afterglow. We also estimated the redshift distribution for the GRBs within our sample. Of the 227 GRBs analysed, we found that 116 had a measured redshift. Based on these data, we calculated a local rate of ρ0 = 0.2 Gpc-3 yr-1 for these events with z < 1. To explore the intrinsic properties of GRBs, we examined the average X-ray and optical light curves in the rest frame.
AB - We collected the optical light-curve data of 227 gamma-ray bursts (GRBs) observed with the TAROT, COATLI, and RATIR telescopes. These consist of 133 detections and 94 upper limits. We constructed average light curves in the observer and rest frames in both X-rays (from Swift/X-Ray Telescope) and the optical. Our analysis focused on investigating the observational and intrinsic properties of GRBs. Specifically, we examined observational properties, such as the optical brightness function of the GRBs at T = 1000 s after the trigger, as well as the temporal slope of the afterglow. We also estimated the redshift distribution for the GRBs within our sample. Of the 227 GRBs analysed, we found that 116 had a measured redshift. Based on these data, we calculated a local rate of ρ0 = 0.2 Gpc-3 yr-1 for these events with z < 1. To explore the intrinsic properties of GRBs, we examined the average X-ray and optical light curves in the rest frame.
KW - (stars:) gamma-ray burst: individual: GRB 180706A
KW - (stars:) gamma-ray burst: individual: GRB 180812A
KW - (stars:) gamma-ray bursts: general
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U2 - 10.1093/mnras/stad2513
DO - 10.1093/mnras/stad2513
M3 - Article
AN - SCOPUS:85171893399
SN - 0035-8711
VL - 525
SP - 3262
EP - 3273
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 3
ER -