Modeling the Carrington Event: sun-to-earth propagation of a very fast CME

Details Modeling the Carrington Event: sun-to-earth propagation of a very fast CME Modeling the Carrington Event: sun-to-earth propagation of a very fast CME

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agusmsh43a..06m&link_type=abstract

American Geophysical Union, Spring Meeting 2004, abstract #SH43A-06

Physics

2784 Solar Wind/Magnetosphere Interactions, 7513 Coronal Mass Ejections, 7524 Magnetic Fields, 7531 Prominence Eruptions, 7851 Shock Waves

Scientific paper

We present a three-dimensional (3D) numerical ideal magnetohydrodynamics (MHD) model describing the time-dependent propagation of a CME from the solar corona to Earth in just 18 hours. The simulations are performed using the BATS-R-US (Block Adaptive Tree Solarwind Roe Upwind Scheme) code. We begin by developing a global steady-state model of the corona that possesses high-latitude coronal holes and a helmet streamer structure with a current sheet at the equator. The Archimedian spiral topology of the interplanetary magnetic field is reproduced along with fast and slow speed solar wind. Within this model system, we drive a CME to erupt by the introduction of a Gibson-Low magnetic flux rope that is embedded in the helmet streamer in an initial state of force imbalance. The flux rope rapidly expands driving a very fast CME with an initial speed of in excess of 4000 km/s and slowing to a speed of nearly 2000 km/s at Earth. We find our model predicts a thin sheath around the flux rope, passing the earth in only two hours. Shocked solar wind temperatures at 1 AU are in excess of 10 million degrees. Physics based AMR allows us to capture the structure of the CME focused on a particular Sun-Earth line with high spatial resolution given to the bow shock ahead of the flux rope.

Affiliated with

Also associated with

No associations

Rating

Modeling the Carrington Event: sun-to-earth propagation of a very fast CME does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Modeling the Carrington Event: sun-to-earth propagation of a very fast CME, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modeling the Carrington Event: sun-to-earth propagation of a very fast CME will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1179091