8 papers
SN 2022erq: A Superluminous Thermonuclear Supernova with Escalating Preexplosion Mass Loss
Qian Zhai, Jujia Zhang, Xiaofeng Wang +51
We present a photometric and spectroscopic study of the superluminous Type Ia supernova SN 2022erq. Its early spectra, dominated by iron-group elements with weak intermediate-mass…
SN 2023axu: A Type IIP Supernova Interacted with a Low-Density Stellar Wind
Zeyi Wang, Jujia Zhang, Qian Zhai +8
We present photometric and spectroscopic observations of Type IIP supernova SN 2023axu, spanning 400 d after the explosion. Its light curve is typical of normal SNe IIP, with…
AT 2024wpp: the most luminous fast-evolving optical transient linked to the merger explosion of a black-hole binary
Jialian Liu, Bao Wang, Xiaofeng Wang +48
Fast blue optical transients (FBOTs) represent one of the most exotic astrophysical transients, exhibiting unusually strong emission across X-ray, optical, and radio wavelengths. T…
SN 2024igg: A Super-Chandrasekhar/03fg-like SN exhibiting C II-dominated spectra after explosion
Jialian Liu, Xiaofeng Wang, Liyang Chen +14
We present and analyze photometric and spectroscopic observations of the Type Ia supernova (SN Ia) 2024igg, another ``super-Chandrasekhar'' (or 03fg-like) SN whose strong C II $\la…
SN 2022acko: a low-luminosity SNe IIP with signs of early circumstellar interaction
Lin Han, Zhang Jujia, Wang Xiaofeng +13
We present optical-ultraviolet photometry and optical spectra for the type II supernova (SN) 2022acko. The spectroscopic observations span phases from 1.5 to 60 days…
Dynamical binary interactions in the 2040s
Nadejda Blagorodnova, OndÅej Pejcha, Tomek KamiÅski +15
Dynamical binary interactions such as common envelope (CE) evolution or stellar mergers are a critical phase in the formation of a wide variety of binary phenomena, ranging from bl…