Recent study using Huairou vector magnetograph data shows that dur ing flare activity, the current helicity exhibits rapid and substantial variations and,in some cases, a recovering phase. We considered various representative the mag netic confgurations. First, interacting twisted magnetic flux tubes...
+Solar Physics Department of the Royal Observatory of Belgium, the official keepers of sunspot data. Solar Activity Forecast The Forecast of Solar Activity as well as Geomagnetic Activity Probability of Flares and Proton Events EVENT (Flare/Proton) ...
Astronomers reported an increase in solar flare activity that they thought would soon peak at historic levels. On Friday itself, when the first of the huge flares occurred, scientists again noted that this could mean unusual aurora occurrences. But those predictions were buried in news reports of...
Periodic behaviour of solar flare activity The 155-day periodicity is examined by taking into account the location of the flare on the Sun. It is suggested that the 155-day period may be ... K Ichimoto,J Kubota,M Suzuki,... - 《Nature》 被引量: 158发表: 1985年 Substorm activity on...
The sudden increase of X-radiation and EUV emission following solar flares causes additional ionization and increased absorption of electromagnetic (EM) wa... V Barta,R Natras,V Srekovi,... 被引量: 0发表: 2022年 Investigation of Unusual Solar Flare Effect on the Global Ionospheric Current Syst...
The Oriented Scintillation Spectrometer Experiment (OSSE) on board the Compton Gamma Ray Observatory observed the 1991 June 4 X12+ solar flare, one of the ... RJ Murphy,GH Share,JE Grove,... - 《Astrophysical Journal》 被引量: 209发表: 1997年 Permanent flare activity in the magnetosphere ...
This was an M6.6-category flare. Find out more about the classification of solar flaresat this link at Spaceweather.com Another view from SDO of the flare. Credit: NASA/SDO A look at sunspot 1158 as of Feb. 14, 2011. This is the source of the recent activity on the Sun. Credit: ...
we should also make some effort to empathize with people who have grown up believing that sexual expression does not and should not have any restrictions, that from some time in adolescence on everyone can and should engage in whatever sexual activity strikes his or her fancy, with no adverse...
An attempt is made to relate the parameters of the current in the photosphere and their dynamics to the level of flare activity of the region. These studies have yielded the following results: (1) The change in the total unsigned current in an AR is synchronous or quasi-synchronous with ...
Heating and activity of the solar corona: 1. Boundary shearing of an initially homogeneous magnetic field To contribute to the understanding of heating and dynamic activity in boundary-driven, low-beta plasmas such as the solar corona, we investigate how an initially homogeneous magnetic field ...