The solar magnetic activity cycle
Sources of solar wind over the solar activity cycle
... Fast solar wind has been recognized, about 40 years ago, to originate in polar coronal holes (CHs), that, since then, have been identified with sources of recurrent high speed wind ...the solar wind is ...
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Solar magnetic activity: Topologically explored
... strong cycle exists [7]. The NOAA/NASA/ISES Cycle 24 Prediction Panel presented the first prediction on April 25th, ...strong cycle of 140 sunspots plus or minus 20, expected to peak in October of ...
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Solar Activity during the Rising Phase of Solar Cycle 24
... ABSTRACT Solar activity refers to any natural phenomenon occurring on the sun such as sunspots, solar flare and coronal mass ejection ...various solar features during January 2009 to December ...
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Seismological insights into solar and stellar magnetic activity cycles
... Sun’s activity cycle varies primarily on a timescale of 11 ...each cycle is different. Indeed the last solar minimum was generally regarded as being unusually long and deep, while solar ...
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Breathing of heliospheric structures triggered by the solar-cycle activity
... frozen-in magnetic fields carried by the solar wind, but also due to the three-dimensional asymmet- ric distribution of the solar wind momentum ...the solar wind momentum flow during ...
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Solar magnetic activity inferred from helioseismology: the weak solar Cycle 24. David SALABERT CEA Saclay, Gif-sur-Yvette, France
... • Frequency shifts of low-frequency modes unchanged Ø Cycle 24 magnetically weaker above 2400 km. Ø Cycle 24 and Cycle 23 magnetically similar below 2400 km[r] ...
North-south asymmetry in solar activity: predicting the amplitude of the next solar cycle
... in solar flare activity may be related to the north-south asymmetry in the meridional ...the magnetic flux in the northern and the southern hemispheres caused by the re- connection processes may have ...
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Formation and Behavior of the Solar Events Originated in Solar Bursts during the Solar Cycle Maximum Activity
... peak activity of 11-year cycles. The peak of the current cycle was expected in ...in activity, the world's reliance on electronic technology and therefore vulnerability to space weather has increased ...
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Solar cycle effect on geomagnetic storms caused by interplanetary magnetic clouds
... geomagnetic activity which was induced by interplanetary magnetic clouds during the past four solar cycles, ...in solar maximum than in solar ...average solar wind speed of ...
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Solar cycle effect on geomagnetic storms caused by interplanetary magnetic clouds
... Lepping: Solar cycle effect on geomagnetic storms 3385 ...geomagnetic activity index, D st (solid line), during ...the solar wind velocity gets faster. Eighty-two interplanetary ...
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Effect of Magnetic activity on scintillation at Equatorial Region during Low Solar Activity
... DasGupta et al., 1985; Dabas et al., 1989; Pathak et al., 1995; Bhattacharya et al., 2000 and Basu et al., 2001). Single and dual frequency GPS receivers used in low-latitude regions can suffer from rapid amplitude and ...
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Prediction of Solar Activity from Solar Background Magnetic Field Variations in Cycles 21-23
... the solar background magnetic field (SBMF) in cycles 21–23 and the sunspot magnetic field in cycle 23 reported in our recent paper showed the presence of two principal components (PCs) of SBMF ...
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Prediction of solar activity from solar background magnetic field variations in cycles 21-23
... the solar background magnetic field (SBMF) in cycles 21–23 and the sunspot magnetic field in cycle 23 reported in our recent paper showed the presence of two principal components (PCs) of SBMF ...
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Analysis of Coronal Magnetic Field Conditions during Major Solar Energetic Particle Events of 23rd Solar Cycle
... the activity on the surface of the Sun and in its atmosphere entirely depends on the magnetic activity of the ...the magnetic field on the surface of the Sun causes a huge, violent variation ...
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A solar-like magnetic cycle on the mature K-dwarf 61 Cygni A (HD 201091)
... the magnetic cycle In order to assess the long-term variability of the magnetic field of 61 Cyg A, we consider several ways of paraphrasing the re- constructed magnetic ...the magnetic ...
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A solar like magnetic cycle on the mature K dwarf 61 Cygni A (HD 201091)
... the magnetic cycle In order to assess the long-term variability of the magnetic field of 61 Cyg A, we consider several ways of paraphrasing the re- constructed magnetic ...the magnetic ...
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Solar cycle variation of magnetic flux ropes in a quasi static coronal evolution model
... twisted magnetic flux ropes, which may lose equi- librium and be ...the magnetic structure predicted by this model—in particular the flux ropes—varies over the solar activity cycle, ...
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Dependence of Geomagnetic Storms on Diverse Solar Wind Parameters, Interplanetary Magnetic Field, Interplanetary Conditions for Solar Cycle 23
... 3.3 GS and Interplanetary conditions We analyse the effect of interplanetary conditions such as By, Bz, Ey on GS. As we know that Bx, By and Bz are the three basic components of IMF. Bx is corresponding to the x-axis in ...
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Effect of solar and magnetic activity on VHF scintillations near the equatorial anomaly crest
... the solar cycle and during April 1998 to December 1999 in the ascend- ing phase of the succeeding solar cycle at Varanasi, which is situated near the northern crest of the equatorial anomaly ...
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Effect of solar and magnetic activity on VHF scintillations near the equatorial anomaly crest
... the solar cycle and during April 1998 to December 1999 in the ascend- ing phase of the succeeding solar cycle at Varanasi, which is situated near the northern crest of the equatorial anomaly ...
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