Publications (9)
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…
Prompt-to-afterglow transition of optical emission in a long gamma-ray burst consistent with a fireball
Liping Xin, Xuhui Han, Huali Li +19
Long gamma-ray bursts (GRBs), which signify the end-life collapsing of very massive stars, are produced by extremely relativistic jets colliding into circumstellar medium. Huge ene…
Probing the Nature of High-z Short GRB 090426 with Its Early Optical and X-ray Afterglows
Liping Xin, Enwei Liang, Jianyan Wei +13
GRB 090426 is a short duration burst detected by Swift ( s in the observer frame, and s in the burst frame at ). Its host galaxy propert…
An Automatic Observation Management System of the GWAC Network I: System Architecture and Workflow
Xuhui Han, Yujie Xiao, PinPin Zhang +21
The GWAC-N is an observation network composed of multi-aperture and multi-field of view robotic optical telescopes. The main instruments are the GWAC-A. Besides, several robotic op…
Overview of Ground-based Wide-Angle Cameras array
Liping Xin, Lei Huang, Hongbo Cai +25
As one of the key ground-based facilities of the Chinese-French SVOM mission, the main scientific objectives of the Ground-based Wide Angle Camera array (GWAC) are to detect prompt…
Distribution of Si II 6355 Velocities of Type Ia Supernovae and Implications for Asymmetric Explosions
Keto D. Zhang, WeiKang Zheng, Thomas de Jaeger +7
The ejecta velocity is a very important parameter in studying the structure and properties of Type Ia supernovae (SNe Ia). It is also a candidate key parameter in improving the uti…
SN 2017cfd: A Normal Type Ia Supernova Discovered Very Young
Xuhui Han, WeiKang Zheng, Benjamin E. Stahl +22
The Type~Ia supernova (SN~Ia) 2017cfd in IC~0511 (redshift z = 0.01209+- 0.00016$) was discovered by the Lick Observatory Supernova Search 1.6+-0.7 d after the fitted first-light t…
The GWAC Data Processing and Management System
Yang Xu, Liping Xin, Xuhui Han +10
GWAC will have been built an integrated FOV of 5,000 and have already built 1,800 square . The limit magnitude of a 10-second exposure image in the moonless ni…
A Real-time Automatic Validation System for Optical Transients detected by GWAC
Yang Xu, Liping Xin, Jing Wang +4
The ground-based wide-angle camera array (GWAC) generates millions of single frame alerts per night. After the complicated and elaborate filters by multiple methods, a couple of do…