Search Publications
Review on Current Sheets in CME Development: Theories and Observations
Reeves, Katharine K.; Lin, Jun; Raymond, John C. +5 more
We introduce how the catastrophe model for solar eruptions predicted the formation and development of the long current sheet (CS) and how the observations were used to recognize the CS at the place where the CS is presumably located. Then, we discuss the direct measurement of the CS region thickness by studying the brightness distribution of the C…
Understanding the Internal Chemical Composition and Physical Processes of the Solar Interior
Basu, Sarbani; Turck-Chièze, Sylvaine; Grevesse, Nicolas +1 more
The Sun, the closest and most well studied of stars, is generally used as a standard that other stars are compared to. Models of the Sun are constantly tested with helioseismic data. These data allow us to probe the internal structure and dynamics of the Sun. Among the main sources of the data is the SOHO spacecraft that has been continuously obse…
Solar Dynamics, Rotation, Convection and Overshoot
Thompson, M. J.; Schou, J.; Roth, M. +3 more
We discuss recent observational, theoretical and modeling progress made in understanding the Sun's internal dynamics, including its rotation, meridional flow, convection and overshoot. Over the past few decades, substantial theoretical and observational effort has gone into appreciating these aspects of solar dynamics. A review of these observatio…
The Importance of Long-Term Synoptic Observations and Data Sets for Solar Physics and Helioseismology
Gosain, Sanjay; Broomhall, Anne-Marie; Elsworth, Yvonne +3 more
A casual single glance at the Sun would not lead an observer to conclude that it varies. The discovery of the 11-year sunspot cycle was only made possible through systematic daily observations of the Sun over 150 years and even today historic sunspot drawings are used to study the behavior of past solar cycles. The origin of solar activity is stil…