Results 1 to 10 of about 10,159,899 (209)
Flare-productive active regions. [PDF]
Living Rev Sol Phys, 2019 Strong solar flares and coronal mass ejections, here defined not only as the bursts of electromagnetic radiation but as the entire process in which magnetic energy is released through magnetic reconnection and plasma instability, emanate from active ...
Toriumi S, Wang H.
europepmc +3 more sources
Flows around Averaged Solar Active Regions. [PDF]
Astrophys J, 2019 We explore the general properties of near-surface flows around solar active regions. Helioseismic holography is applied to HMI Dopplergrams yielding nearly 5000 flow measurements of 336 unique active regions observed by the Solar Dynamics Observatory ...
Braun DC.
europepmc +3 more sources
A low upper limit on the subsurface rise speed of solar active regions. [PDF]
Sci Adv, 2016 Comparison of observations and simulations provides a strong upper limit on the subsurface rise speed of solar active regions. Magnetic field emerges at the surface of the Sun as sunspots and active regions.
Birch AC +6 more
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Transcriptionally active regions are the preferred targets for chromosomal HPV integration in cervical carcinogenesis. [PDF]
PLoS One, 2015 Integration of human papillomavirus (HPV) into the host genome is regarded as a determining event in cervical carcinogenesis. However, the exact mechanism for integration, and the role of integration in stimulating cancer progression, is not fully ...
Christiansen IK +4 more
europepmc +2 more sources
The Magnetic Classification of Solar Active Regions 1992 - 2015 [PDF]
, 2016 The purpose of this letter is to address a blind-spot in our knowledge of solar active region statistics. To the best of our knowledge there are no published results showing the variation of the Mount Wilson magnetic classifications as a function of ...
Jaeggli, Sarah A., Norton, Aimee A.
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SDO/HMI survey of emerging active regions for helioseismology [PDF]
, 2016 Observations from the Solar Dynamics Observatory (SDO) have the potential for allowing the helioseismic study of the formation of hundreds of active regions, which would enable us to perform statistical analyses. Our goal is to collate a uniform data set
Birch, A. C. +4 more
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Living Reviews in Solar Physics, 2015 The evolution of active regions (AR) from their emergence through their long decay process is of fundamental importance in solar physics. Since large-scale flux is generated by the deep-seated dynamo, the observed characteristics of flux emergence and ...
Lidia van Driel-Gesztelyi +1 more
doaj +2 more sources
On the Formation of Active Regions [PDF]
, 2012 Magneto-convection can produce an active region without an initial coherent flux tube. A simulation was performed where uniform, untwisted, horizontal magnetic field of 1 kG strenght was advected into the bottom of a computational domain 48 Mm wide by 20
Nordlund, Åke, Stein, Robert F.
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A Compendium of Chromatin Contact Maps Reveals Spatially Active Regions in the Human Genome. [PDF]
Cell Rep, 2016 Schmitt AD +10 more
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Low-latitude coronal holes, decaying active regions and global coronal magnetic structure [PDF]
, 2013 We study the relationship between decaying active region magnetic fields, coronal holes and the global coronal magnetic structure using Global Oscillations Network Group (GONG) synoptic magnetograms, Solar Terrestrial RElations Observatory (STEREO ...
Haislmaier, Karl, Petrie, Gordon
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