Search Publications
Quasi-periodic outflows observed by the X-Ray Telescope onboard Hinode in the boundary of an active region
Tian, Hui; Guo, Li-Jia; He, Jian-Sen
Persistent outflows have recently been detected at the boundaries of some active regions. Although these outflows are suggested to be possible sources of the slow solar wind, the nature of these outflows is poorly understood. Through an analysis of an image sequence obtained by the X-Ray Telescope onboard the Hinode spacecraft, we found that quasi…
Statistical study of EUV and X-ray transient brightenings
Li, Hui; Li, Jing-Wei
Using the visual inspection and base difference method and data from the X-ray Telescope (XRT) onboard Hinode and TRACE with improved spatial and temporal resolution, we selected 48 X-ray transient brightenings (XTBs) and 237 EUV transient brightenings (ETBs) to study the connection between these two types of transient brightenings (TBs). These ET…
An empirical method to correct the saturation seen in the SOHO/MDI magnetograms
Liu, Yang; Zhao, Yong-Heng; Zhendong Gao, George
The magnetic field of the umbrae is sometimes found to be saturated in the magnetograms taken by the Michelson Doppler Imager (MDI) onboard the Solar and Heliospheric Observatory (SOHO). It is suggested that the combination of the low intensity of sunspot umbrae and the limitation of the 15-bit onboard numerical data acquisition leads to this satu…