activity
20232026
most citedGRB minimum variability timescale with Insight-HXMT and Swift: implications for progenitor models, dissipation physics and GRB classifications

47 citations · 127 across the 16 of their papers we have counts for

collaborators

17 papers

astro-ph.HE2026

Evidence of self-organized criticality in the prompt emission of a bright gamma-ray burst

Wen-Long Zhang, Wen-Jun Tan, Hao-Tian Lan +18

Gamma-ray bursts (GRBs) are the most energetic explosive events in the Universe, yet the physical mechanism of their prompt emission remains a mystery. Especially, it is unclear wh…

astro-ph.HE2026

An internal shock model calibrated with real gamma-ray burst light curves using a genetic algorithm

Manuele Maistrello, Cristiano Guidorzi, Shiho Kobayashi +1

The origin of gamma-ray burst (GRB) prompt emission remains an open question. The internal shock (IS) model is a leading scenario for converting relativistic ejecta kinetic energy…

astro-ph.HE2026

The hidden population of long gamma-ray bursts from compact object mergers

R. Maccary, C. Guidorzi, L. Amati +6

Context. The prompt-emission time profiles of GRB 230307A and other long-duration compact object merger (COM) candidates exhibit a unique set of temporal properties, characterised…

astro-ph.IM2025★ 1 cited

FAST-MEPSA: an optimised and faster version of peak detection algorithm MEPSA

Manuele Maistrello, Romain Maccary, Cristiano Guidorzi

We present FAST-MEPSA, an optimised version of the MEPSA algorithm developed to detect peaks in uniformly sampled time series affected by uncorrelated Gaussian noise. Although orig…

astro-ph.HE2025

The Origin of Cross-Energy-Similar FRED Profiles in Gamma-Ray Bursts Pulses

Shu-Xu Yi, Chen-Wei Wang, Shao-Lin Xiong +5

To understand the physical mechanisms underlying the prompt emission of gamma-ray bursts (GRB), single FRED (Fast-Rise-Exponential-Decay) profile GRBs serve as an ideal sample, as…

astro-ph.HE2025★ 3 cited

GRB X-ray plateaus as evidence that the afterglow begins before the prompt gamma-ray emission

C. Guidorzi, R. Maccary, M. Maistrello +3

Most GRB X-ray afterglow light curves are characterised by a plateau, followed by a normal power-law decay interpreted as afterglow emission. Despite the numerous alternative inter…

astro-ph.HE2025★ 9 cited

A set of distinctive properties ruling the prompt emission of GRB 230307A and other long γ-ray bursts from compact object mergers

R. Maccary, C. Guidorzi, M. Maistrello +9

Short gamma-ray bursts (SGRBs), occasionally followed by a long and spectrally soft extended emission, are associated with compact object mergers (COMs). Yet, a few recent long GRB…

astro-ph.HE2025★ 4 cited

GRB minimum variability timescales with Fermi/GBM

R. Maccary, C. Guidorzi, A. E. Camisasca +8

Context. Gamma-ray bursts (GRBs) have traditionally been classified by duration into long (LGRBs) and short (SGRBs), with the former believed to originate from massive star collaps…

astro-ph.HE2025★ 2 cited

A search for periodic activity in multi-peaked long gamma-ray bursts

C. Guidorzi, M. Orlandini, R. Maccary +10

A sizeable fraction of gamma-ray burst (GRB) light curves (LCs) features a sequence of peaks, which holds information on the unknown way energy is dissipated into gamma-rays over t…

astro-ph.HE2025★ 3 cited

An advanced pulse-avalanche stochastic model of long gamma-ray burst light curves

Manuele Maistrello, Lisa Ferro, Lorenzo Bazzanini +2

A unified explanation of the variety of long-duration gamma-ray burst (GRB) light curves (LCs) is essential for identifying the dissipation mechanism and possibly the nature of the…

astro-ph.HE2024★ 6 cited

New results on the gamma-ray burst variability-luminosity relation

C. Guidorzi, R. Maccary, A. Tsvetkova +13

At the dawn of the gamma-ray burst (GRB) afterglow era, a Cepheid-like correlation was discovered between time variability V and isotropic-equivalent peak luminosity Liso of the pr…

astro-ph.HE2024

Distribution of the number of peaks within a long gamma-ray burst: The full Fermi/GBM catalogue

R. Maccary, M. Maistrello, C. Guidorzi +8

Context. The dissipation process responsible for the long gamma-ray burst (GRB) prompt emission and the kind of dynamics that drives the release of energy as a function of time are…

astro-ph.HE2024★ 6 cited

Long gamma-ray burst light curves as the result of a common stochastic pulse-avalanche process

Lorenzo Bazzanini, Lisa Ferro, Cristiano Guidorzi +9

Context. The complexity and variety exhibited by the light curves of long gamma-ray bursts (GRBs) enclose a wealth of information that still awaits being fully deciphered. Despite…

astro-ph.HE2024★ 13 cited

Distribution of number of peaks within a long gamma-ray burst

C. Guidorzi, M. Sartori, R. Maccary +10

The variety of long duration gamma-ray burst (LGRB) light curves (LCs) encode a wealth of information on how LGRB engines release energy following the collapse of the progenitor st…

astro-ph.HE2024

Distributions of energy, luminosity, duration, and waiting times of gamma-ray burst pulses with known redshift detected by Fermi/GBM

R. Maccary, C. Guidorzi, L. Amati +6

Discovered more than 50 years ago, gamma-ray burst (GRB) prompt emission remains the most puzzling aspect of GRB physics. Its complex and irregular nature should reveal how newborn…

astro-ph.HE2023★ 33 cited

Insight-HXMT and GECAM-C observations of the brightest-of-all-time GRB 221009A

Zheng-Hua An, S. Antier, Xing-Zi Bi +174

GRB 221009A is the brightest gamma-ray burst ever detected since the discovery of this kind of energetic explosions. However, an accurate measurement of the prompt emission propert…

astro-ph.HE2023★ 47 cited

GRB minimum variability timescale with Insight-HXMT and Swift: implications for progenitor models, dissipation physics and GRB classifications

A. E. Camisasca, C. Guidorzi, L. Amati +18

The dissipation process of GRB prompt emission is still unknown. Study of temporal variability may provide a unique way to discriminate the imprint of the inner engine activity fro…