activity
20242026
most citedA fast X-ray transient from a weak relativistic jet associated with a type Ic-BL supernova

30 citations · 72 across the 27 of their papers we have counts for

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Showing 2026Show all

17 papers · 1 filter

astro-ph.HE2026

Fast Optical Variability of the TeV Blazar PKS 1725+123 Observed by SVOM-VT and Insights from Multi-wavelength Follow-up Observations

Shuo-Yu Liu, Yu-Wei Yu, Ji-Shun Lian +29

PKS 1725+123 is a flat-spectrum radio quasar (FSRQ) with a redshift of . The detection of this object in the TeV band was reported by the MAGIC telescopes and H.E.S.S. in…

astro-ph.HE2026

X-rays breaking out of pre-explosion ejecta mark a supernova's first light

Weimin Yuan, Qiu-Ju Huang, Jin-Ping Zhu +130

Massive stars die as core-collapse supernovae, whose optical light emerges days after the implosion. Theory predicts that the initial collapse-driven shock, upon breaking through t…

astro-ph.HE2026

Early results from the SVOM Observatory Science program

A. Coleiro, L. Tao, F. Cangemi +44

We present the organisation and early results from the Observatory Science program of the Space-based multi-band astronomical Variable Objects Monitor (SVOM), based on data collect…

astro-ph.HE2026

First Gamma-Ray Burst Observations with SVOM

F. Daigne, D. Turpin, J. -L. Atteia +34

Following its launch on 22 June 2024, the Space-based multi-band astronomical Variable Objects Monitor (SVOM) successfully completed its flight acceptance, commissioning, and scien…

astro-ph.HE2026

GRB 250424A: A Case Study of Energy Injection with Multiwavelength Observations

Yifang Liang, Yun Wang, WeiKang Zheng +61

We present a comprehensive multiwavelength analysis of the long-duration gamma-ray burst (GRB) 250424A. Our dataset spans from the prompt gamma-ray emission to late-time optical mo…

astro-ph.IM2026

SVOM/VT: On-ground processing of VT-VHF data

Chao Wu, Jesse T. Palmerio, Tatyana Sadibekova +14

The VT--VHF data comprise three types of onboard-processed data results generated from four sequential observational sequences and transmitted to the ground via a Very High Frequen…

astro-ph.IM2026

SVOM/VT: Real-Time Onboard Data Processing

Hong-Bo Cai, Yu-Lei Qiu, Li-Ping Xin +16

The SVOM Visible Telescope (VT) is critical for the rapid identification of gamma-ray burst (GRB) optical counterparts, particularly for high-redshift candidates that require immed…

astro-ph.HE2026

SVOM/VT: Overview of data processing and GRB identifications with X-band data

Hua-Li Li, Yu-Lei Qiu, Li-Ping Xin +16

VT (the Visible Telescope) is an optical telescope onboard the SVOM (Space-based Multi-band Astronomical Variable Objects Monitor) mission, specifically designed to detect optical…

astro-ph.IM2026

The VHF alert network of the SVOM mission

B. Cordier, L. Jeannin, Ph. Lafabrie +9

The scientific success of the SVOM mission will rely on the rapid transmission of alert messages from the satellite to the scientific community, and in particular to the ground-bas…

astro-ph.HE2026

SVOM Science User Support at FSC

A. Claret, D. Turpin, C. Moreau +16

The SVOM mission, a Sino-French collaboration dedicated to Gamma-Ray Bursts (GRBs) and transient sources, began scientific operations in 2025. This paper describes the ground compu…

astro-ph.HE2026

ECLAIRs: the SVOM high-energy transient trigger camera

O. Godet, J. -L. Atteia, S. Schanne +51

The core instrument of the SVOM Gamma-ray burst mission launched in June 2024 is the 4-150 keV 2-D coded mask camera ECLAIRs responsible for the autonomous trigger and localization…

astro-ph.HE2026

SVOM/VT: Instrument Overview, Science Objectives, and First-Year Performance

Yu-Lei Qiu, Li-Ping Xin, Jin-Song Deng +22

The 44-cm Visible Telescope (VT) aboard the Space-based Variable Objects Monitor (SVOM) is a dual-band (400-650 nm and 650-1000 nm) instrument designed to detect and characterize t…

astro-ph.HE2026

XRF 241001A/SN 2024aiiq: A faint soft X-ray transient detected by SVOM with a broad-line type Ic supernova revealed by JWST

B. Schneider, M. Brunet, B. P. Gompertz +61

X-ray flashes (XRFs) are a type of gamma-ray burst (GRB) with prompt emission predominantly below 30 keV and have been poorly detected by previous missions. The advent of the SVOM…

astro-ph.SR2026

Multi-wavelength Study of A Superflare on RS CVn-type Star HD22468 Triggered at Hard X-ray by SVOM

J. Wang, W. J. Xie, F. Cangemi +36

Detection of stellar flares at hard X-ray is still rare at the current stage. A transient was recently detected by the hard X-ray camera, ECLAIRs onboard the SVOM mission at 11:39:…

astro-ph.HE2026★ 1 cited

SVOM discovery of a strong X-ray outburst of the blazar 1ES~1959+650 and multi-wavelength follow-up with the Neil Gehrels Swift observatory

A. Foisseau, A. Coleiro, S. Komossa +37

On December 6, 2024, 1ES 1959+650, one of the X-ray brightest blazars known, underwent a high-amplitude X-ray outburst detected by SVOM, the first such discovery with this mission.…

astro-ph.HE2026

Detection of Oscillations in a Type I X-Ray Burst of 4U 0614+091 with SVOM/ECLAIRs

Sébastien Le Stum, Floriane Cangemi, Alexis Coleiro +29

On 2025 January 10, a thermonuclear (Type I) X-ray burst from the neutron star low-mass X-ray binary \textit{4U~0614+091} was detected with the ECLAIRs instrument on board the \tex…

astro-ph.HE2026

Minutes-long soft X-ray prompt emission from a compact object merger

An Li, Chen-Wei Wang, Niccolò Passaleva +75

Compact object mergers are multi-messenger sources and known progenitors of some gamma-ray bursts, bright flashes of high-energy radiation powered by a central engine, either an ac…