Hiroaki Isobe

Institute:	DAMTP, Cambridge and University of Tokyo
Date of Visit:	1/3/06
Duration:	3 days
Collaborators:	Alan Hood and Vasilis Archontis and Michelle Murray
Funded by:

Hiroaki has done some excellent work on flux emergence as past of his thesis and is presently spending a year at Cambridge working on magnetoconvection.

Thomas Wiegelmann

Institute:	Lindau, Germany
Date of Visit:	28/2/06
Duration:	2 weeks
Collaborators:	Thomas Neukirch
Funded by:

Thomas's main interests are in coronal magnetic field extrapolation, in particular the extrapolatiion of non-linear force-free fields.

Fernando Moreno Insertis

Institute:	La Palma
Date of Visit:	19/2/06
Duration:	1 week
Collaborators:	Alan Hood, Vasilis Archontis and Michelle Murray
Funded by:

Fernando will be working with the emerging flux group during his stay.

Dr Klaus Galsgaard

Institute:	NBIFA, Copenhagen
Date of Visit:	19/2/06
Duration:	2 weeks
Collaborators:	Alan Hood, Vasilis Archontis, Michelle Murray, Ineke De Moortel, Duncan Mackay, Andrew Haynes and Clare Parnell.
Funded by:

Klaus will be working with the emerging flux group during the first week and the rest of us during the second week - on numerical stuff, of course!

Tony Arber

Institute:	Warwick
Date of Visit:	5/12/05
Duration:	2 days
Collaborators:	Thomas Neukirch, Alan Hood
Funded by:

Thomas Wiegelmann

Institute:	Lindau, Germany
Date of Visit:	5/12/05
Duration:	2 weeks
Collaborators:	Thomas Neukirch
Funded by:

Thomas is particularly interested in coronal magnetic field extrapolation. In Lindau he is working in the STEREO team.

Istvan Ballai

Institute:	Sheffield University
Date of Visit:	30/11/05
Duration:	3 days
Collaborators:	Bernie Roberts
Funded by:

He is a specialist in mhd waves

Elena Khomenk

Institute:	Tenerife
Date of Visit:	28/11/05
Duration:	2 weeks
Collaborators:	Bernie Roberts, Antonio Diaz
Funded by:

She is developing an MHD code for studying magneto-acoustic waves in sunspots. Presently the work has involved linear waves but is now looking to study non-linear effects.

Prof E N Parker

Institute:	University of Chicago
Date of Visit:	9/11/05
Duration:	2 days
Collaborators:	Bernie Roberts
Funded by:

Hubert Baty

Institute:	University of Strasbourg
Date of Visit:	5/10/05
Duration:	3 days
Collaborators:	Eric Priest
Funded by:

He is an expert on numerical mhd and instabilities and has been working recently on a reconnection simulation

Prof. Dave Walker

Institute:	University of KwaZulu-Natal, Durban, South Africa
Date of Visit:	20/09/05
Duration:	1 day
Collaborators:	Andrew Wright
Funded by:

Dave is an expert on wave propagation and mode coupling in nonuniform media, including WKB analysis. He will give a seminar for the group.

Professor Yuzef Zhugzhda

Institute:
Date of Visit:	15/09/05
Duration:	6 weeks
Collaborators:	Bernie Roberts
Funded by:

Yuzef is well known for his many papers in solar MHD, especially connected with sunspots and with MHD waves. He is a forceful speaker and contributor at conferences! Formerly he was much involved with the Soviet space programme, but since his retirement he has spent several years in the Kiepenheuer Institute for Solar Physics, Freiberg, working with Prof Stix on such topics as p-modes in the presence of convection and MHD waves in thin flux tubes.

Dr Tongjiang Wang

Institute:	Max Planck Institute, Katlenburg-Lindau, Germany
Date of Visit:	15/08/05
Duration:	1 week
Collaborators:	Dr Bernie Roberts
Funded by:	?

Tongjiang is well known for his observations with SoHO/SUMER of oscillations in coronal loops.

Jim Mckenzie

Institute:	Max Planck Institute, Katlenburg-Lindau, Germany
Date of Visit:	15/08/05
Duration:	3 weeks
Collaborators:	Dr Andy Wright, Dr Bernie Roberts and Dr Peter Damiano
Funded by:	?

Jim is interested in mhd waves, particle acceleration and inertial Alfven waves

Anastasia Metillanou

Institute:	?
Date of Visit:	15/08/05
Duration:	1 month
Collaborators:	Dr Andy Wright
Funded by:	?

Anastasia is interested in ion acceleration in substorms and numerical simulations. She will be visiting EPCC and St Andrews to enable her to parallelize a code to integrate ion trajectories in a collapsing magnetotail field.

Laura Bone and Ross Galloway

Institute:	Glasgow University
Date of Visit:	18/05/05
Duration:	2 days
Collaborators:	Prof. Eric Priest and Antonia Wilmot-Smith
Funded by:	PPARC visitors grant

Laura and Ross have come to discuss the topology of magnetic fields and to find out more about magnetic modelling.

Dr P. Gallagher

Institute:	University College, Dublin
Date of Visit:	4/05/05
Duration:	3 days
Collaborators:
Funded by:

Peter has spent 2 days in discussions with various member of the group, before giving the applied seminar.

Dr Brian Welsch

Institute:	University of California, Berkley, USA
Date of Visit:	25/04/05
Duration:	4 weeks
Collaborators:	Dr Clare Parnell
Funded by:	PPARC visitors grant

Following on from the small magnetic feature tracking workshop was held last year Brian has come over to discuss the identification and tracking of cancelling magnetic features in both active and quiet-sun regions.

Brian gave talks at both the Solar Group's seminar and at reconnection club.

Prof. M. Berger

Institute:	UCL, London
Date of Visit:	15/04/05
Duration:	1 days
Collaborators:
Funded by:

Mitch spent a fruitful morning in discussion with Gunnar about helicity before giving the applied seminar.

Mags Selwa

Institute:
Date of Visit:	11/04/05
Duration:	2 weeks
Collaborators:	Prof. B Roberts, A. Diaz
Funded by:

Ms Selwa is working with Kris Murawski in numerical simulations of MHD waves in coronal loops. She has come over to discuss various aspects of her numerical simulations of waves propagation in non-homogeneous plasmas. Whilst here she has given 2 talks to the waves sub-group and a wednesday seminar to the solar group.

Dr. Mervyn Freeman

Institute:	British Antarctic Survey, Cambridge
Date of Visit:	14/03/05
Duration:	3 days
Collaborators:	Dr. Thomas Neukirch
Funded by:

Mervyn and Thomas enjoyed many useful discussions on magnetotail models during his visits.

(1)Dr Craig DeForest, (2)Dr Mandy Hagenaar, (1)Derek Lamb and (3)Dr Brian Welsch

Institute:	(1)Southwest Research Institute, Boulder, USA, (2)LMSAL, Palo Alto, USA, (3)University of California, Berkley, USA
Date of Visit:	14/11/04
Duration:	1 week
Collaborators:	Dr Clare Parnell
Funded by:	Self funding and PPARC visitors grant

A small magnetic feature tracking workshop was held. At this workshop we all used our respective feature tracking codes to analyse the same data set. All our codes have different methods of identifing features and use different criteria for tracking. By analysing the same dataset we were able to determine the pros and cons of each code and identify what should be the 'best' overall approach to tracking magnetic features.

Craig DeForest gave the weeks Solar Group seminar highlighting the uses and pit falls of magnetic feature tracking.

Prof. Robert Rosner

Institute:	University of Chicago
Date of Visit:	12/11/04
Duration:	1 day
Collaborators:
Funded by:

Bob Rosner gave the week Applied Maths seminar to the School attracting a wide audience not only from Maths, but also Astronomy. He had discussion with various members of the solar group including, Bernie Roberts, Eric Priest, Ineke De Moortel and Clare Parnell.

Dr Dieter Nickeler (and his wife Michaela, an Astrophysicist)

Institute:	University of Utrecht
Date of Visit:	8/11/04
Duration:	1 week
Collaborators:	Thomas Neukirch
Funded by:

Dieter has visited the Solar Group before (April this year) and is presently based at the University of Utrecht where he is working towards a PhD.

Dieter did his Diploma in Physics in Bochum, supervised by Karl Schindler. He first moved to the University of Bonn, working with Hans Fahr on the structure of the Heliosphere and has since moved to Utrecht where he continues this work. Dieter is especially interested in MHD states with flows, both ideal and non-ideal.

Dr Stephane Regnier

Institute:	Estec, Holland
Date of Visit:	18/10/04
Duration:	1 week
Collaborators:	Eric Priest
Funded by:	PPARC visitors grant

Stephane is an expert in numerical MHD, especially calculating nonlinear force-free fields of active regions - he is giving the group seminar on wednesday, but will also be free to speak to anyone who would like to during the week.

Stephane did his PhD with Tahar Amari and was then a postdoc in Montana, before moving to a postdoc position at Estec in Holland this year.

Dr Emmanuele Tassi

Institute:	Italy
Date of Visit:	27/9/04
Duration:	3 months
Collaborators:	Eric Priest
Funded by:	PPARC visitors grant
Email:	tassi@mcs.st-andrews.ac.uk

Emmanuele is visiting Eric and Gunnar to collaborate on a project looking for 3D reconnection solutions about null points.

Dr Gunnar Hornig

Institute:	Bochum, Germany
Date of Visit:	1/4/04
Duration:	13 months
Collaborators:	Eric Priest (Magnetic Reconnection: Fundamentals), David Pontin (Magnetic Reconnection: Models), Rhona MacLean (Reconstruction of coronal magnetic fields), Duncan Mackay (Helicity), Mark Linton (Magnetic helicity), Antonia Wilmot-Smith (Dissipation and Reconnection), Emanuele Tassi (Magnetic Reconnection) Eric Priest and Thomas Neukirch
Funded by:	PPARC visitors grant, other sources
Email:	gunnar@mcs.st-andrews.ac.uk
WWW:	http://www.tp4.ruhr-uni-bochum.de/vw/ghpub.html

Research interests: Structure of magnetic fields, magnetic reconnection, magnetic helicity, topological invariants, topology and representation of electromagnetic fields, MHD.

Seminars and lectures given whilst at St Andrews: Informal lectures on "Magnetic Null Points" and "Magnetic Helicity", seminars on "Magnetic Reconnection"