RHESSI-SOHO-TRACE Workshop

Sonoma, California

December 8-11 , 2004

Group 3: Interrelationships of Flares/CMEs in "Super" Events

Group Leaders:

Nat Gopalswamy
Code 695.0
Bldg 21, Room 260
NASA's Goddard Space Flight Center
Greenbelt MD 20771-0001
ph:  1-301-286-5885
fax: 1-301-286-1433
gopals@fugee.gsfc.nasa.gov

Angelos Vourlidas
Code 7663V, Naval Research Laboratory
4555 Overlook Ave, S.W.
Washington, DC 20375
ph: 1-202-767-2800
fax: 1-202-767-5636
vourlidas(at)nrl.navy.mil

 


Summary

Only a handful of extreme solar eruptions have been recorded in the past starting from the Carrington/Hodgson event of September 1, 1859.  SOHO/LASCO observed several of these extreme events in a single solar cycle (23). The October-November 2003 extreme events may help us understand the limit of free energy available in solar active regions. Particular emphasis will be placed on the events that occurred in a cluster during this period. Both CMEs and flares were well observed by SOHO, RHESSI and TRACE during this period so we can revisit the long-standing question of CME-flare relationship.

 

WG3 Schedule

Wednesday, December 8

10:45-12:15 

Working group session: Historical Context of Extreme Events
N. Gopalswamy, A. Vourlidas: Introduction and Overview
E. Cliver:  Historical Overview of Super Events
B. Tsurutani: Historical Overview of Super Storms

12:15-13:15

Lunch

13:15-15:15

Working group session: Source Regions of Super Events
N. Gopalswamy: CME and Flare Recurrence from the three active regions
V. Yurchyshyn: Coronal & IP Mag. Fields
A. Vourlidas: CME energies
Open Discussion

15:15-15:45

Break

15:45-17:30

Working group session: Flares and SEPs in the Super Events
R. Mewaldt: Extreme SEP Events
C. Lindsey: Seismic Emission from Flares  
Y. Liu:  Determination of CME's speed using the cone model 
Discussion

Thursday, December 9

10:45-12:15

Working group session:  Geoimpacts
 N. Gopalswamy:  Travel times of historical and October shocks
 B. Tsurutani: Ionospheric effects of Halloween events and other super events
The largest geomagnetic storm of cycle 23 (Nov 20, 2003)
Open Discussion

12:15-13:45

Lunch

13:45-15:15 

Working group session:
I. Veselovsky: Physical problems related to observations of eruptions and flares
Discussion on the questions posed in the WG3 outline

15:15-15:45

Break

15:45-17:30

Working group session:
Jun Lin: Theoretical models of CME-associated Flares??
Discussion on the questions posed in the WG3 outline


Friday, December 10

08:30-10:00

Working group host session: Discussion on Energetics (Emslie, Vourlidas)
T. Medcalf: Free Energy in the Source Regions of the Oct-Nov Activity
Y. Liu: Magnetic Energy of the October-November Active regions

10:00-10:30

Break

10:30-12:00 

Working group host session: Discussion on Energetics

Continue Discussion

12:00-13:30

Lunch

13:30-15:00

Working group session:

Summary and discussion of group results

15:00-15:45

Break

15:45-17:30

Working group session:

Discussion on  Future Collaborations