supported by the National Natural Science Foundation of China (Grant Nos.11103037,11273034,11178005,41174153,11173033,11473039,11427901 and 11673033);the National Basic Research Program of China (Grant Nos.2000078401 and 2006CB806301);Chinese Academy of Sciences (Grant KJCX2-EW-T07);supported by NASA contract NAS5-02139 to Stanford University
An alternative parameter RJz is introduced as the ratio of one of two kinds of opposite-sign current to the total current and is used to investigate the relationship between this quantity and the hemispheric helicity ...
supported by the Ministry of Education and Science of theRussian Federation;supported by the Chinese Academy of Sciences Visiting Professorship for Senior International Scientists (Grant Nos. 2011T1J20 and 2010T2J24);supported by the Russian Foundation of Basic Research (RFBR,GrantNos. 11-02-00757,11-02-91151,10-02-00153,12-02-91161-GFEN and FP7-PEOPLE-2011-IRSES);The National Basic Research Program of the Ministry of Science and Technology of China(Grant No. 2006CB806301);CAS-NSFC Key Project (Grant No. 10778605) support the Chinese
In some events, weak fast solar bursts (near the level of the quiet Sun) were observed in the background of numerous spikes in emission and absorption. In such a case, the background contains the noise signals of th...
Supported by the Important Directional Project of Chinese Academy of Sciences (Grant No. KJCX2-YW-T04);the National Basic Research Program of China (Grant No. 2006CB806301);the National Natural Science Foundation of China (Grant Nos. 10878004, 10733020, and10673016)
In this paper we will summarize the progress in the development of the Chinese Space Solar Telescope (SST) during the past few years. The main scientific objective of SST is to observe the fundamental structure of sol...
Supported by the National Natural Science Foundation of China (Grant Nos. 40636031, 10778723, 10873038, and 10833007);the Important Directional Projects of Chinese Academy of Sciences (Grant No. KLCX2-YW-T04);the National Basic Research Program of China (GrantNo. 2006CB806301)
We have compared a set of co-temporal magnetograms obtained with the Solar Magnetic Field Tele-scope (SMFT) of the Huairou Solar Observing Station (HSOS) and with the Spectro-Polarimeter of the Solar Optical Telescope...
Supported by the National Natural Science Foundation of China (Grant Nos. 40636031 and 10778723);the Important Directional Projects of Chinese Academy of Sciences (Grant No. KLCX2-YW-T04);the National Basic Research Program of China (Grant No. 2006CB806301)
Following Pevtsov and Latushko, we study the current helicity pattern of the large-scale magnetic field on the photosphere. We use the same technique as theirs to derive the vector magnetic field (Br,Bθ,Bφ) from ful...
Supported by the National Natural Science Foundation of China (Grant Nos. 40636031 and 10778723);the Important Directional Projects of Chinese Academy of Sciences (Grant No. KLCX2-YW-T04);the National Basic Research Program of China (Grant No. 2006CB806301)
We use a few solar partial eclipse observations made by XRT/Hinode to estimate the influence of stray-light component in determining coronal temperature structures. Our analysis shows that the stray light will largely...
Supported by the National Basic Research Program of China (Grant No. 2006CB806301);the National Natural Science Foundation of China(Grant Nos. 10611120338, 10473016, 10673016, 10733020, and 60673158);the Important Directional Project of Chinese Academy of Sciences(Grant No. KLCX2-YW-T04);the Astronomical Unite Foundation of China (Grant Nos. 10878016 and 10778723);the Max-Planck Gesellschaft–Chinese Academy of Sciences Doctoral Program and the International Max-Planck Research School
This research aims for an objective identification, tracking, and a statistical analysis of the Moving Magnetic Features (MMFs) around sunspots using SOHO/MDI high-resolution magnetograms. To this end, we develop a co...
Supported by the National Natural Science Foundation of China (Grant Nos. 10611120338, 10473016, 10673016, 60673158, 10733020, and10978015);the National Basic Research Program of China (Grant No. 2006CB806301);the Important Directional Project of Chinese Academy of Sciences (Grant No. KLCX2-YW-T04)
This paper summarizes current helicity measurements in the solar active regions (ARs). There is a basic agreement with the "hemispheric sign rule (HSR)" of the current helicity among different vector magnetographs thr...