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- Peking UniversityCN570 papers
- Tsinghua UniversityCN570 papers
- University of Science and Technology of ChinaCN567 papers
- Beihang UniversityCN543 papers
- Carnegie Mellon UniversityUS536 papers
- Zhejiang UniversityCN536 papers
- University of TurinIT530 papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT518 papers
- Institute of High Energy PhysicsCN513 papers
- Università degli Studi del Piemonte Orientale “Amedeo Avogadro”IT513 papers
- University of Chinese Academy of SciencesCN502 papers
- University of PerugiaIT496 papers
7 papers · 2 filters
Bubble in the Whale: Identifying the Optical Counterparts and Extended Nebula for the Ultraluminous X-ray Sources in NGC 4631
Jing Guo, Jianfeng Wu, Hua Feng +9
We present a deep optical imaging campaign on the starburst galaxy NGC 4631 with CFHT/MegaCam. By supplementing the HST/ACS and Chandra/ACIS archival data, we search for the optica…
A possible 250-second X-ray quasi-periodicity in the fast blue optical transient AT2018cow
Wenjie Zhang, Xinwen Shu, Jin-Hong Chen +11
The fast blue optical transients (FBOTs) are a new population of extragalactic transients of unclear physical origin. A variety of mechanisms have been proposed including failed su…
The Nearest Neutron Star Candidate in a Binary Revealed by Optical Time-domain Surveys
Ling-Lin Zheng, Mouyuan Sun, Wei-Min Gu +19
The near-Earth (within pc) supernova explosions in the past several million years can cause the global deposition of radioactive elements (e.g., Fe) on Earth. The…
Comparing the Super-Eddington accretion of SMC X-3 and RX J0209.6-7427 with Swift J0243.6+6124
Jiren Liu, Georgios Vasilopoulos, MingYu Ge +4
We study the giant outbursts of SMC X-3 and RX J0209.6-7427 to compare their super-Eddington accretion regime with that of Swift J0243.6+6124. The high double-peak profile of SMC X…
Repeating Ultraluminous X-ray Bursts and Repeating Fast Radio Bursts: A Possible Association?
Hao-Yan Chen, Wei-Min Gu, Jin-Bo Fu +3
Ultraluminous X-ray bursts (hereafter ULXBs) are ultraluminous X-ray flares with a fast rise ( one minute) and a slow decay ( an hour), which are commonly observed in e…
About 300 days optical quasi-periodic oscillations in the long-term light curves of the blazar PKS 2155-304
Qi Zheng, Xueguang Zhang, Qirong Yuan
Based on the long-term light curves collected from the Catalina Sky Survey (CSS) (from 2005 to 2013) and the All-Sky Automated Survey for Supernovae (ASAS-SN) (from 2014 to 2018),…