"MAGNETIC FIELDS ACROSS THE HERTZSPRUNG-RUSSELL DIAGRAM"

JANUARY 15 - 19, 2001- SANTIAGO, CHILE

PRELIMINARY
SCIENTIFIC PROGRAMME

Monday, January 15, 2000

9:00 - 09:20 Workshop opening
0. Introductory talk
9:20 -10:00 Magnetic fields across the Hertzsprung-Russell diagram [L. Mestel (UK)]

1. The Sun
1.1 Photospheric field
10:00 - 10:40 1.1.1 Large-scale structure of the sun's magnetic field and solar cycle [E.R. Priest (U.K.)]
10:40-11:20 1.1.2 Sunspot magnetic fields [J.C. del Toro Iniesta (Spain)]

11:20-11:50 Coffee break

11:50-12:30 1.1.3 Small-scale structure of the sun's magnetic field: non-spot fields [S.K. Solanki (Germany)

12:30-12:50 C.1 The micro-structure of the solar magnetic fields [J. Sanchez-Almeida (Spain)]

1.2 Chromospheric and coronal fields

12:50-13:10 1.2.1 Solar chromospheric magnetic fields [C. Keller (USA)]

13:10-14:40 Lunch

14:40-15:00 1.2.2 Solar coronal magnetic fields [S.M. White (USA)]

1.3 Magnetic field diagnostic techniques
15:00-15:40 1.3.1 Magnetic field diagnostic techniques through the Zeeman and Hanle effect
[E. Landi Degl'Innocenti (Italy)]

15:40-16:00 C.2 METASTABLE-level Atomic Polarization and the Diagnostic Problem of Chromospheric Magnetic Fields [J. Trujillo-Bueno]

16:00-16:20 C.3 Themis Hanle and Zeeman effects measurements in second solar spectrum lines [J. Arnaud]

16:30-17:00 Coffee break

16:50-17:10 C.4 A probe of solar magnetic fields with the molecular Zeeman effect [S. Berdyugina et al.]

1.4 Theory

17:10-17:50 1.4.1 Solar magnetic field generation and dynamos [F. Cattaneo (USA)]

18:00- Welcome cocktail

Tuesday, January 16, 2000

9:00-9:40 1.4.3 Theory of solar chromospheric and coronal magnetic fields [A.A. van Ballegooijen (USA)]

9:40-10:20 1.4.4 Magneto-convection [M. Knoelker (USA)]

10:20-10:40 C.5 Symmetry selection in solar cycle dynamo models [M. Dikpati]

10:40-11:10 Coffee break

2. Instrumentation: present and future

11:10-11:50 2.1 Ground-based instrumentation for solar magnetic field studies [H.P. Povel (Switzerland)]

11:50-12:30 2.2 Space-based instrumentation for inference of the solar magnetic field [B.W. Lites (USA)]

2.3 Ground-based instrumentation for stellar magnetic field studies

12:30-13:10 2.3.1 Polarimetry and spectropolarimetry on new generation very large telescopes
[J.-F. Donati (France)]

13:10-14:40 Lunch

14:40-15:00 2.3.2 Current ground-based stellar spectropolarimeters and their use for Zeeman-Doppler imaging [M. Semel (France)]

15:00-15:20 2.3.3 Resolved magnetic structures on stellar surfaces: prospects for interfero-spectropolarimetry
[F. Vakili (France)]

15:20-15:40 2.3.4 CRIRES and VISIR, future tools at ESO's VLT to study magnetic field sensitive lines in the infrared [H.U. Kaeufl]

15:40-16:20 2.3.5 Pulsar radiopolarimetry [I.H. Stairs (USA)]

16:20-16:50 Coffee break

16:50-17:30 2.4 Space-based instrumentation for magnetic field studies of solar and stellar atmospheres
[S. Fineschi (USA)]

17:30-18:10 2.5 Relevance of instruments and diagnostic techniques used in stellar magnetic field studies for other areas of astrophysics [K.H. Nordsieck (USA)]

Wednesday, January 17, 2000

3. Non-degenerate stars

3.1 Cool stars

9:00-09:40 3.1.1 Magnetic field measurements for cool stars [J.A. Valenti (USA)]

9:40-10:20 3.1.2 Stellar dynamos [P. Charbonneau (USA)]

10:20-10:50 Coffee break

10:50-11:30 3.1.3 Magnetic activity on cool nondegenerate stars [J.H.M.M. Schmitt (Germany)]

11:30-12:10 3.1.4 Magnetic fields in binaries [C.G. Campbell (UK)]

12:10-... Workshop tour

Thursday, January 18, 2000

3.2 Ap and Bp stars

9:00-9:40 3.2.1 Magnetic fields of Ap and Bp stars [G. Mathys (Chile)]

9:40-10:20 3.2.2 Recent advances in magnetic field diagnostic techniques [J.D. Landstreet (Canada)]

10:20-10:40 3.2.3 Geometrical structure of Ap and Bp star magnetic fields [S. Bagnulo (Austria)]

10:40-11:00 3.2.4 Zeeman-Doppler Imaging of magnetic Ap and Bp stars [N. Piskunov (Sweden)]

11:00-11:30 Coffee break

11:30-11:50 C.6 Magnetic CP stars: catalogue and spatial distribution [I.I. Romanyuk & D.O. Kudryavtsev]

11:50-12:30 3.2.5 Theory: the origin of Ap and Bp star magnetic fields [D. Moss (UK)]

12:30-12:50 C.7 MHD shearflow instability as a proxy of Ap star magnetism [G. Ruediger & R. Arlt]

12:50-14:20 Lunch

2.3 Hot stars

14:20-14:40 3.3.1 Detection of magnetic fields in hot stars using the Zeeman effect [G.A. Wade (Canada)]

14:40-15:00 C.8 Magnetic field diagnosis in HgMn stars [S. Hubrig et al.]

15:00-15:40 3.3.2 Magnetic fields in hot stars: indirect indicators [H. Henrichs (Netherlands)]

15:40-16:00 3.3.3 Determination of magnetic fields in hot stars using the Hanle effect [J.P. Cassinelli (USA)]

16:00-16:30 Coffee break

4. Degenerate stars

16:30-17:10 4.1 Magnetic fields in isolated white dwarfs: overview [G.D. Schmidt (USA)]

17:10-17:50 4.2 The structure of magnetic fields of isolated white dwarfs and white dwarfs in magnetic CVs
[D.T. Wickramasinghe (Australia)]

17:50-18:10 C.9 Zeeman-split lines from magnetised accretion flows in Magnetic Cataclysmic Variables
[L. Ferrario]

18:10-18:30 C.10 MCV's at extreme low accretion rate - Zeeman and Cyclotron spectra [A. Schwope]

20:30-... Workshop dinner

Friday, January 19, 2000

9:00-9:40 4.3 Magnetic fields of neutron stars: overview [A. Reisenegger (Chile)]

5. Pre-main sequence (PMS) stars

9:40-10:00 5.1 Magnetic fields in pre-main sequence stars [E.W. Guenther (Germany)]

10:00-10:40 5.2 Magnetic flaring in pre-main sequence stars [E.D. Feigelson (USA)]

10:40-11:10 Coffee break

11:10-11:50 5.3 Spindown of young stars: the role of magnetic fields [K.B. MacGregor (USA)]

11:50-12:30 5.4 Star formation models with magnetic fields [T.Ch. Mouschovias (USA)]

6. Towards a global picture

12:30-13:10 6.1 Instrumentation and techniques for magnetic field diagnostics [J.O. Stenflo (Switzerland)]

13:10-14:40 Lunch

6.2 Observable effects induced by or related to magnetic fields

14:40-15:20 6.2.1 Observable Effects Produced by Magnetic Fields in the Winds and Envelopes of Hot Stars
[J.P. Cassinelli (USA)]

15:20-16:00 6.2.2 Cool stars [P.G. Judge (USA)]

16:00-16:30 Coffee break

16:30-17:10 6.3 Theoretical aspects of stellar magnetic fields and the solar-stellar connection [R. Rosner (USA)]

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Send comments to : magfield@eso.org Last Update: December 29, 2000