activity
20242026
most citedHigh resolution X-ray spectra of the compact binary supersoft X-ray source CAL 87

2 citations · 2 across the 14 of their papers we have counts for

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11 papers · 1 filter

astro-ph.HE2026

LHAASO-WCDA observed a 5 days TeV-delayed flaring event in blazar 1ES 1959+650

Zhen Cao, F. Aharonian, Y. X. Bai +339

We report a day-scale hard lag between GeV and TeV -ray emission from the HBL 1ES~1959+650 in early 2024. Since the LHAASO-WCDA real-time monitoring system began operation in la…

astro-ph.HE2026

Anisotropic Particle Transport from a Pulsar Wind Nebula Revealed by Einstein Probe and LHAASO

Zhen Cao, F. Aharonian, Y. X. Bai +339

Pulsar wind nebulae (PWNe) are major cosmic ray accelerators, yet the mechanisms transporting high-energy particles into the interstellar medium remain elusive. Building on the LHA…

astro-ph.HE2026

When will T Coronae Borealis next erupt as a nova? Constraints from recurrence, orbital phase, and accretion-state evolution

Songpeng Pei, Xiaowan Zhang, Renzhi Su +6

T Coronae Borealis (T CrB) is the nearest symbiotic recurrent nova and is now intensively monitored for its next eruption. We combine three constraints on the eruption time: histor…

astro-ph.HE2026

FAST Discovery of Jy Radio Pulsations from PSR J2238+5903, Providing a DM Distance Anchor for the Candidate TeV Halo 1LHAASO J2238+5900

Jianli Zhang, Hui Zhu, Guanhong Lin +10

We report the first detection of radio pulsations from PSR J2238+5903, a gamma-ray pulsar spatially coincident with the extended TeV source 1LHAASO J2238+5900. Our 3000 s FAST L-ba…

astro-ph.HE2026

Lack of Significant Orbital-Phase Locking in the Active Phases of the Recurrent Nova T CrB

Songpeng Pei, Xiaowan Zhang, Renzhi Su +6

T Coronae Borealis (T CrB) is a symbiotic recurrent nova (RN) that exhibits both nova eruptions and long-term active phases resembling superoutbursts and normal outbursts. Motivate…

astro-ph.HE2026

Diffuse gamma-ray emission in the vicinity of open cluster Berkeley 87

Ziwei Ou, Xiaolong Yang

Young massive stellar clusters have been recognized as a significant population of cosmic ray accelerators and gamma-ray sources. We report the detection of extended gamma-ray emis…

astro-ph.HE2026

Diffuse gamma-ray emissions around the stellar cluster Berkeley 59

Ziwei Ou, Xiaolong Yang, Songpeng Pei

We report a detailed analysis on the young stellar cluster Berkeley 59 using Fermi-LAT. Using up-to-date source catalog and background models, we found significant extended GeV emi…

astro-ph.HE2026

4HWC J20293641: a Pulsar Wind Nebula Powered by PSR J20303641?

Ziwei Ou, Jie Wang, Songpeng Pei

4HWC J2029+3641 is a newly discovered point source detected by HAWC, with no previously identified TeV counterpart. The gamma-ray pulsar PSR J2030+3641, located 0.1 degree from the…

astro-ph.HE2026

Diffuse Gamma-ray Emission Around 4FGL J1626.0-4917

Ziwei Ou, Jie Wang

Extended gamma-ray sources provide significant information about particle propagation. 4FGL J1626.0-4917 was labeled as an unassociated source in 4FGL catalog without known counter…

astro-ph.HE2026

Point-like Off-pulse GeV Emission from the Millisecond Pulsar PSR J0437-4715

Ziwei Ou

PSR J0437-4715 is a gamma-ray millisecond pulsar, which has been detected by Fermi-LAT. For understanding the nature, we analyze the GeV gamma-ray data obtained with Fermi-LAT arou…

cs.CV2026

Qianfan-OCR: A Unified End-to-End Model for Document Intelligence

Daxiang Dong, Mingming Zheng, Dong Xu +17

We present Qianfan-OCR, a 4B-parameter end-to-end vision-language model that unifies document parsing, layout analysis, and document understanding within a single architecture. It…