Important Closing Dates

June 13th 2007:

Request for support

June 22nd 2007:

Early registration

Abstract submission

June 25th 2007:

Guaranteed hotel room reservation at reduced price

July 13th 2007:

Late registration

Sept. 30th 2007:

Paper submission

Soho20 Group picture at Het Pand
Tuesday 28th August

high resolution picture

Poster Contest Winners

The winners of the poster contest are:


L. Bettarini	L. Fletcher	E. Bordes

Theme of the conference

SOHO has vastly contributed to our understanding of the dynamical nature of the Sun. Over the last decade, the solar physics community has identified numerous transients of various types: CMEs, SEPs, flares, but also: jets, spikes, sprays, surges, dimmings, EIT waves and more. Subsequently, their phenomenology has progressed quickly, but their physics is far from being completely understood. We know that transients usually encompass several layers of the solar atmosphere, adding to the complexity of the topic. Modelling efforts are ongoing and the lists of scenarios and precursors are not closed.

It is an opportune time to review the knowledge acquired on solar transients and to discuss what the next steps need to be.

Multi-instrumental and multi-mission investigations contain great potentials. In this respect, ACE, WIND, ULYSSES, RHESSI, TRACE, CORONAS, YOHKOH have been crucial in complementing SOHO observations. STEREO and HINODE, both launched in 2006, provide new science activities. This conference will review results from the SOHO partnership with other missions, and we anticipate special emphasis on early collaborative results from STEREO and HINODE. Additionally, other missions are being prepared, such as the NASA/LWS SDO, or the Chinese SMESE and KUAFU. Finally, the ESA-PROBA2 launch is scheduled in 2007 and the ESA Solar Orbiter and NASA Sentinels are in the process of being merged into one synergistic mission of greatest relevance to "helio-transients".

The objective is thus to bring together members of the solar physics, heliospheric physics, and Space Weather international communities. Particular emphasis will be placed on mutual communication between next generation instruments and the existing solid expertise of SOHO, a proficient mission having operated for a complete solar cycle.

Areas of interest include

Flares from minimum to maximum
Coronal Mass Ejections and the solar wind
Precursors and initiation of eruptions
Solar Energetic Particle events
The full spectrum of transients
Interrelation between transients
Transport processes through the heliosphere
SOHO synergies with missions old and new
The Future: missions, methods and models