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- Chinese Academy of SciencesCN554 papers
- University of Chinese Academy of SciencesCN299 papers
- National Astronomical ObservatoriesCN210 papers
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- University of Science and Technology of ChinaCN63 papers
- Nanjing UniversityCN61 papers
- Kavli Institute for Theoretical SciencesCN59 papers
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- Centre National de la Recherche ScientifiqueFR50 papers
- Purple Mountain ObservatoryCN47 papers
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66 papers · 1 filter
Reverberation Mapping of Changing-look Active Galactic Nucleus NGC 3516
Hai-Cheng. Feng, Chen. Hu, Sha-Sha. Li +7
The changes of broad emission lines should be a crucial issue to understanding the physical properties of changing-look active galactic nucleus (CL-AGN). Here, we present the resul…
Observing the changing surface structures of the active K giant sigma Gem with SONG
H. Korhonen, R. M. Roettenbacher, S. Gu +6
Aims: We aim to study the spot evolution and differential rotation in the magnetically active cool K-type giant star sigma Gem from broadband photometry and continuous spectroscopi…
Discovery of A candidate Hypervelocity star originated from the Sagittarius Dwarf Spheroidal galaxy
Yang Huang, Qingzheng Li, Huawei Zhang +5
In this letter, we report the discovery of an intriguing HVS (J1443+1453) candidate that is probably from the Sagittarius Dwarf Spheroidal galaxy (Sgr dSph). The star is an old and…
A nonlinear solar magnetic field calibration method for the filter-based magnetograph by the residual network
Jingjing Guo, Xianyong Bai, Yuanyong Deng +5
The method of solar magnetic field calibration for the filter-based magnetograph is normally the linear calibration method under weak-field approximation that cannot generate the s…
From the Fermi blazar sequence to the relation between Fermi blazars and gamma-ray Narrow-line Seyfert 1 Galaxies
Yongyun Chen, Qiusheng Gu, Junhui Fan +6
We use the third catalog of blazars detected by Fermi/LAT (3LAC) and gamma-ray Narrow-line Seyfert 1 Galaxies (gamma-NLSy1s) to study the blazar sequence and relationship between t…
Magnetic reconnection between loops accelerated by a nearby filament eruption
Leping Li, Hardi Peter, Lakshmi Pradeep Chitta +3
Magnetic reconnection modulated by non-local disturbances in the solar atmosphere has been investigated theoretically, but rarely observed. In this study, employing Ha and extreme…