activity
20242026
most citedEP241021a: a months-duration X-ray transient with luminous optical and radio emission

15 citations · 17 across the 9 of their papers we have counts for

collaborators

10 papers

astro-ph.GA2026

The Intermediate-Mass Black Hole Reverberation Mapping Project: Scientific Overview and Sample Characteristics

Hengxiao Guo, Jiancheng Wu, Wenwen Zuo +38

Recent discoveries with the James Webb Space Telescope of massive black holes at high redshift have highlighted fundamental questions about black hole seed formation and the coevol…

astro-ph.HE2026

Rapid Variability and Broadband Spectral Modeling in the Flaring Activity of BL Lacertae

Xin Chang, Dingrong Xiong, Chenxu Liu +17

We report a multi-wavelength study of two flaring episodes of the blazar BL Lacertae during MJD 60500-60800 (9 July 2024 - 5 May 2025). The source reached a daily-averaged -ray…

astro-ph.GA2026

The Intermediate-Mass Black Hole Reverberation Mapping Project: Stable Optical Continuum Lags of an IMBH in the Dwarf Galaxy NGC 4395 Over Years

Yu Pan, Hengxiao Guo, Chenxu Liu +15

NGC 4395 is a nearby dwarf spiral galaxy hosting an active galactic nucleus (AGN) powered by an intermediate-mass black hole (IMBH, --). Re…

astro-ph.HE2025★ 1 cited

SN 2024gy: Multi-epoch Spectroscopic Features Suggestive of Delayed Detonation in a Type Ia Supernova

Liping Li, Zhenyu Wang, Jialian Liu +28

We present photometric and spectroscopic observations of SN 2024gy, a Type Ia supernova (SN Ia) exhibiting high-velocity features (HVFs) in its early-time spectra. This SN reaches…

astro-ph.HE2025★ 1 cited

SN 2024aecx: A double-peaked rapidly evolving Type IIb supernova at 11 Mpc

Xingzhu Zou, Brajesh Kumar, Rishabh Singh Teja +28

We present the results of low-resolution spectroscopic and densely sampled multi-band photometric follow-up of supernova (SN) 2024aecx. The SN was discovered in the spiral galaxy N…

astro-ph.HE2025★ 15 cited

EP241021a: a months-duration X-ray transient with luminous optical and radio emission

Shu Xinwen, Yang Lei, Yang Haonan +82

We present the discovery of a peculiar X-ray transient, EP241021a, by the Einstein Probe (EP) mission, and the results from multiwavelength follow-up observations. The transient wa…

astro-ph.HE2025

Multiwavelength Analysis of GRB 250101A: From Gamma-ray Prompt Emission to Optical Afterglow

Guowang Du, Yehao Cheng, Yuan-Pei Yang +15

The interaction between the relativistic jet and the circumburst medium produces a multiwavelength afterglow of a gamma-ray burst (GRBs). In this work, we present multiwavelength p…

astro-ph.HE2024

Simultaneous Multiband Photometry of the Early Optical Afterglow of GRB 240825A with Mephisto

Yehao Cheng, Yu Pan, Yuan-Pei Yang +19

Gamma-ray bursts (GRBs) are the most luminous transients in the universe. The interaction of the relativistic jet with the circumburst medium produces an afterglow and generates mu…

astro-ph.HE2024

Multiband Simultaneous Photometry of Type II SN 2023ixf with Mephisto and the Twin 50-cm Telescopes

Yuan-Pei Yang, Xiangkun Liu, Yu Pan +13

SN 2023ixf, recently reported in the nearby galaxy M101 at a distance of , was one of the closest and brightest core-collapse supernovae (CCSNe) in the last decade.…

astro-ph.HE2024

Early-phase simultaneous multiband observations of the Type II supernova SN 2024ggi with Mephisto

Xinlei Chen, Brajesh Kumar, Xinzhong Er +24

We present early-phase good-cadence (hour-to-day) simultaneous multiband ( and bands) imaging of the nearby supernova SN~2024ggi, which exploded in the nearby galaxy, NG…