Energization and Disruption of Magnetic Arcades in the Solar Corona

Information

• NSF Award
• 9319517

Owner

• Science Applications International Corporation

• Award Id

  9319517

• Award Effective Date

  7/15/1994 - 29 years ago

• Award Expiration Date

  12/31/1998 - 25 years ago

• Award Amount

  $ 250,247.00

• Award Instrument

  Continuing grant

9319517 Linker The investigators will study the stability and evolution of magnetic arcades on the sun that can lead to coronal mass ejections (CME's). CME's provide a spectacular manifestation of solar activity. The plasma and magnetic flux ejected into the solar wind by CME's subsequently interacts with the Earth's magnetic field to produce geomagnetic disturbances. The underlying mechanism which is responsible for the initiation of CME's is not well understood. The investigators will continue a line of research that they have conducted over the past three years by studying the effect of photospheric shear flows on 2-D and 3-D helmet streamers. They will also consider the effect of shear on 3-D arcades and 3-D helmet streamers. They will develop a model of coronal magnetic fields based on observed fields and direct comparison between theory and white-light coronal observations. The main emphasis will be to investigate the stability and evolution of more realistic magnetic field configurations. ***

• Program Officer

  Paul Bellaire

• Min Amd Letter Date

  8/5/1994 - 29 years ago

• Max Amd Letter Date

  7/7/2006 - 17 years ago

• ARRA Amount

• Name

  Leidos, Inc.

• City

  Reston

• State

  VA

• Country

  United States

• Address

  11951 Freedom Dr.

• Postal Code

  201905656

• Phone Number

  5715267028

• First Name

  Jon

• Last Name

  Linker

• Email Address

  linkerj@predsci.com

• Start Date

  7/15/1994 12:00:00 AM

• First Name

  Zoran

• Last Name

  Mikic

• Email Address

  mikicz@saic.com

• Start Date

  7/15/1994 12:00:00 AM

• Name

  Space

• Code

  205000