Joint Discussions 1 - 17

JD01 - JD02 - JD03 - JD04 - JD05 - JD06 - JD07 - JD08 - JD09 - JD10 - JD11 - JD12 - JD13
JD14 - JD15 - JD16 - JD17

JD01 - COSMIC PARTICLE ACCELERATION - FROM SOLAR SYSTEM TO AGNs

Wednesday 16 (full day) & Thursday 17 (a.m.) August 2006

Coordinating Divisions: II & XI
Participating Divisions/Commissions: VIII, X & XI/10, 12, 28, 40, 44 & 4

Scientific Organizing Committee
Jonathan Aarons (USA), Roger D. Blandford (USA), John C. Brown (UK, co-Chair), Mary K. Hudson (USA), Marian Karlicky (Czech Republic, co-Chair), John Kirk (Germany, co-Chair), Robert P. Lin (USA), Donald B. Melrose (Australia), Kazunari Shibata (Japan), Nicole Vilmer (France), and Alan M. Watson (UK)

Preliminary Scientific Program Topics

Overview of cosmic particle acceleration
Production and role of solar energetic solar particles
Acceleration in planetary magnetospheres and the ISM
Pulsars/pulsar winds and supernova remnants
Active stars and colliding stellar winds
Gamma-ray bursters
AGNs, jets and clusters of galaxies
Theory of acceleration mechanisms and their diagnostics
Particle in cell and other simulations

Date: Wednesday, August 16 - Thursday, August 17
Location: Small Hall

Detailed information | List of registered participants | List of registered abstracts

JD02 - ON THE PRESENT AND FUTURE OF PULSAR ASTRONOMY

Wednesday 16 (full day) & Thursday 17 (a.m.) August 2006

Coordinating Divisions: XI
Participating Divisions/Commissions: 31, 33, 40 & 44

Scientific Organizing Committee
Jonathan Arons (USA), Werner Becker (Germany, co-Chair), Kwong Sang Cheng (China, Nanjing), Ocker C. de Jager (South Africa), Janusz A. Gil (Poland, co-chair), Nobuyuki Kawai (Japan), Michael Kramer (UK), H. Jan M.E. Kuijpers (Netherlands), Roger W. Romani (USA), Bronislaw Rudak (Poland), David J. Thompson (USA), and Vladimir V. Usov (Israel/ Russian Federation)

Preliminary Scientific Program Topics

Global properties and internal structure on neutron stars
Structure and evolution of neutron star magnetic field
The evolution of rotation-powered pulsars
Pulsar electrodynamics
Non-thermal emission from pulsars
Collective plasma processes
Thermal emission from neutron stars and anomalous X-ray pulsars
General relativity effects and gravitational waves from binary and fast spinning pulsars

Date: Wednesday, August 16 - Thursday, August 17
Location: Meeting Hall IV

Detailed information | List of registered participants | List of registered abstracts

JD03 - SOLAR ACTIVE REGIONS AND 3D MAGNETIC STRUCTURE

Wednesday 16 (full day) & Thursday 17 (a.m.) August 2006

Coordinating Divisions: II
Participating Divisions/Commissions: 49

Scientific Organizing Committee
Subramanian Ananthakrishnan (India), Thomas E. Berger (USA), John M. Davis (USA), Oddbjorn Engvold (Norway), Dale E. Gary (USA), Axel Hofmann (Germany), Hongqi Zhong (China, Nanjing), Donald B. Melrose (Australia), Debi Prasad Choudhary (USA, co-Chair), Eric R. Priest (UK), Robert J. Rutten (The Netherlands), Takashi Sakurai (Japan), Brigitte Schmieder (France), Michal Sobotka (Czech Republic, co-Chair), Sami K. Solanki (Germany), and Jan O. Stenflo (Switzerland)

Preliminary Scientific Program Topics

Photospheric magnetic field: observation and inversion techniques
Chromospheric magnetic field: observation and inversion techniques
Coronal magnetic field: observation and inversion techniques
Magnetic field below the photosphere
Extrapolation of the photospheric field for modelling of 3-D magnetic field structure
Small-scale structures and magnetic field
Coronal and chromospheric heating theory
Eruptions, filaments, CMEs, and space weather implications
Instrumentation and measuring techniques

Date: Wednesday, August 16 - Thursday, August 17
Location: Club A

Detailed information | List of registered participants | List of registered abstracts

JD04 - THE ULTRAVIOLET UNIVERSE: STARS FROM BIRTH TO DEATH

dedicated to Prof. Cornelis de Jager (85), pioneer in UV studies
Wednesday 16 (full day) & Thursday 17 (a.m.) August 2006

Coordinating Divisions: XI
Participating Divisions/Commissions: 14, 30 & 36

Scientific Organizing Committee
Thomas R. Ayres (USA), Martin A. Barstow (UK), William P. Blair (USA), Domitilla de Martino (Italy), Michael A. Dopita (Australia), Ana I. GĂłmez de Castro (Spain), Jiri Grygar (Czech Republic), John B. Hutchings (Canada), Carole Jordan (UK), Yoji Kondo (USA), Elia M. Leibowitz (Israel), Andrzej Niedzielski (Poland), Boris M. Shustov (Russian Federation), Jorge Sahade (Argentina), Willem Wamsteker (Spain, Chair) †, and Zhen-Ru Wang (China, Nanjing)

Newly formed stars and their direct violent environment
Mass loss phases in massive stars
Different levels of interaction in binary stars
The white dwarf sequence
Differences and similarities in classical novae
Different ways to become a supernova

Date: Wednesday, August 16 - Thursday, August 17
Location: Club H

Detailed information | List of registered participants | List of registered abstracts

JD05 - CALIBRATING THE TOP OF THE STELLAR M-L RELATION

Wednesday 16 August 2006

Coordinating Divisions: IV
Participating Divisions/Commissions: VI & VIII/26, 28, 29, 34, 35, 36, 37, 42, 45 &, 47

Scientific Organizing Committee
Norbert Langer (The Netherlands), Claus Leitherer (USA, Chair), Anthony F.J. Moffat (Canada), Stanley P. Owocki (USA), and Joachim Puls (Germany)

Preliminary Scientific Program Topics

Empirical mass determinations of the most massive single stars
Models for massive stars on and off the main sequence
Stability near the Eddington limit with and without rotation
Comparisons of atmospheric and evolutionary masses
Efforts to detect, monitor and analyze massive binaries
Mass and energy return to the interstellar medium from massive stars
Extrapolation to the first generation of stars with ultra-high mass
The role of hot massive stars during the epoch of re-ionization in the early universe

Date: Wednesday, August 16
Location: Meeting Hall V

Detailed information | List of registered participants | List of registered abstracts

JD06 - NEUTRON STARS AND BLACK HOLES IN STAR CLUSTERS

Thursday 17 (p.m.) & Friday 18 (full day) August 2006

Coordinating Divisions: XI
Participating Divisions/Commissions: 26, 28, 30, 31, 33, 35, 37, 40, 42 & 44

Scientific Organizing Committee
Tomasz Bulik (Poland), V. Jorge Casares (Spain), Philip A. Charles (South Africa), Monica Colpi (Italy), Robert P. Fender (UK), Pranab Ghosh (India), Eric Gourgoulhon (France), Jonathan E. Grindlay (USA), Victoria M. Kaspi (Canada), Andrew R. King (UK), Richard N. Manchester (Australia), I. Felix Mirabel (Chile), Frederic A. Rasio (USA, co-Chair), Hans Ritter (Germany), Masura Shibata (Japan), and Ingrid H. Stairs (Canada, co-Chair)

Preliminary Scientific Program Topics

X-ray binaries in the Milky Way and other galaxies
Radio and X-ray millisecond pulsars
X-ray transients
Optical reprocessing and fast variability
X-ray sources and radio pulsars in globular clusters
Compact objects in massive binaries and starbursts
Connection to gamma-ray bursts
Modelling of accretion disks
Quasi-periodic oscillations
Ultra-luminous X-ray sources
Formation and evolution of massive binaries
Supernovae and kicks in binaries
Compact binaries as sources of gravitational waves
Relativistic binaries and tests of general relativity

Date: Friday, August 18
Location: Small Hall

Detailed information | List of registered participants | List of registered abstracts

JD07 - THE UNIVERSE AT z > 6

Thursday 17 (p.m.) & Friday 18 (full day) August 2006

Coordinating Divisions: VIII
Participating Divisions/Commissions: 28 & 47

Scientific Organizing Committee
Andrea Ferrara (Italia, co-Chair), Esther M. Hu (USA), Matthew D. Lehnert (Germany), Roser D. Pello (France), Daniel Schaerer (Switzerland, co-Chair), and Yoshiaki Taniguchi (Japan)

Preliminary Scientific Program Topics

Galaxies at z > 6
Interstellar and intergalactic medium at z > 6
Quasars at z > 6
Observational approaches to z > 6: deep fields, search techniques, use of gravitational lensing
Gamma-ray bursts to probe the early Universe
Star formation in the early Universe, simulations
Feedback mechanisms at high-z at various scales, galactic and IGM including galaxy outflows
Early chemical evolution of the Universe
Cosmic re-ionization, simulations, observational constraints

Date: Friday, August 18
Location: Meeting Hall IV

Detailed information | List of registered participants | List of registered abstracts

JD08 - SOLAR AND STELLAR ACTIVITY CYCLES

Thursday 17 (p.m.) & Friday 18 (full day) August 2006

Coordinating Divisions: II
Participating Divisions/Commissions: IV/10, 12, 29, 35, 36 & 49

Scientific Organizing Committee
Pavel Ambroz (Czech Republic), Martin Asplund (Australia), Svetlana V. Berdyugina (Switzerland), Andrew C. Cameron (UK), Dainis Dravins (Sweden), Lidia van Driel-Gesztelyi (France), Cheng Fang (China, Nanjing), Alexander Kosovichev (USA, co-Chair), John D. Landstreet (Canada), Valentin I. Makarov (Russian Federation), Gautier Mathys (Chile), Roberto Pallavicini (Italy), Fernando Moreno-Insertis (Spain), Takashi Sakurai (Japan), Klaus G. Strassmeier (Germany, co-Chair), and P. Venkatakrishnan (India)

Preliminary Scientific Program Topics

Observations and models of the physical processes responsible for stellar magnetic cycles
Advances in understanding the dynamo mechanism, generation, transport and dissipation of magnetic fields
Recent results of observations of almost a complete 11-year solar cycle from SOHO and ground-based observatories
Multi-wavelength observations of the solar-type activity on other stars
Compare and contrast properties of stellar and solar cycles with theories
Planning for future observations and modelling

Date: Friday, August 18
Location: Club A

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JD09 - SUPERNOVAE: ONE MILLENNIUM AFTER SN1006

Thursday 17 (p.m.) & Friday 18 (full day) August 2006

Coordinating Divisions: VIII, WG Supernovae
Participating Divisions/Commissions: VI & XII/34, 41 & 47

Scientific Organizing Committee
Gloria Dubner (Argentina), Claes Fransson (Sweden), Wolfgang Hillebrandt (Germany, co-Chair), Katsuji Koyama (Japan), Ken'ichi Nomoto (Japan), Robert Petre (USA), Pilar Ruiz-Lapuente (Spain), Brian P. Schmidt (Australia, co-Chair), Virginia L. Trimble (USA), J. Graig Wheeler (USA), and P. Frank Winkler (USA, co-Chair)

Preliminary Scientific Program Topics

The history of SN 1006 and other historical supernovae
SNR 1006 and other young supernova remnants
The physics of supernovae: observations and theory
Cosmological applications of supernovae

Date: Friday, August 18
Location: Club H

Detailed information | List of registered participants | List of registered abstracts

JD10 - PROGRESS IN PLANETARY EXPLORATION MISSIONS

Monday 21 (full day) & Tuesday 22 (a.m.) August 2006

Coordinating Divisions: 16
Participating Divisions/Commissions: III/15

Scientific Organizing Committee
Michael F. A'Hearn (USA), Carlo Blanco (Italy), Guy J. Consolmagno (Vatican City State, Chair) RĂ©gis Courtin (France), Dale P. Cruikshank (USA), Walter F. Huebner (USA), Petrus M.M. Jenniskens (The Netherlands), H. Uwe Keller (Germany), Leonid V. Ksanfomality (Russian Federation), Mikhail Ya. Marov (Russian Federation), Melissa A. McGrath (USA), Keth S. Noll (USA), Maarten C. Roos-Serote (Portugal), Edward F. Tedesco (USA), and Iwan P. Williams (UK)

Preliminary Scientific Program Summary
Results of planetary spacecraft missions that have returned results in the last triennium will be summarized by the project scientists and other principal investigators of the missions. The new results will be related to highlight the body of work in Planetary Sciences, which has proceeded in parallel with the spacecraft missions Spirit/Opportunity, Mars Express, Cassini, Stardust, Genesis.

Date: Monday, August 21 - Tuesday, August 22
Location: Meeting Hall IV

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JD11 - PRE-SOLAR GRAINS AS ASTROPHYSICAL TOOLS

Monday 21 August 2006

Coordinating Divisions: IV
Participating Divisions/Commissions: VI/22, 34 & 35

Scientific Organizing Committee
Anja C. Andersen (Denmark, co-Chair), W. David Arnett (USA), Martin Asplund (Australia), Suchitra C. Balachandran (USA), John P. Bradley (USA), Mounib El Eid (Lebanon), Roberto Gallino (Italy), Sunetra Giridhar (India), John C. Lattanzio (Australia, co-Chair), Jacobus Th. van Loon (UK), Nami Mowlavi (Switzerland), Antonella Natta (Italy), Takashi Yoshida (Japan), and Ernst Zinner (USA)

Preliminary Scientific Program Summary
The identification and recovery of pre-solar grains in meteorites has caused a revolution in stellar structure and nucleosynthesis calculations. Yet the extent of this revolution is still not as large as it could be, nor are the full implications of the revolution fully appreciated by all in the relevant fields. It is time for the broader stellar community to see the constraints that these data provide, and a JD seems to be an excellent way to bring together the communities working on stellar spectra, stellar interiors, meteorites, and the interstellar medium.

Date: Monday, August 21
Location: Club A

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JD12 - LONG WAVELENGTH ASTROPHYSICS

Monday 21 August 2006

Coordinating Divisions: X
Participating Divisions/Commissions: VI, VII & VIII/9 & 40

Scientific Organizing Committee
Franklin Briggs (Australia), Gloria Dubner (Argentina), Luigina Feretti (Italy), Jacqueline N. Hewitt (USA), Namir E. Kassim (USA, co-Chair), T. Joseph W. Lazio (USA, co-Chair), A.V. Megn (Ukraine), Alexander A. Konovalenko (Ukraine), Alain Lecacheux (France), A. Pramesh Rao (India), and Huub J.A. RĂ¶ttgering (The Netherlands)

Preliminary Scientific Program Summary
The greatest discoveries in astronomy have accompanied technological innovations that have opened new windows of the electromagnetic spectrum. One of the last poorly explored regions lies between 100 MHz and the ionospheric cutoff at 10 MHz. In the past, variations in the ionosphere have limited ground-based instruments to small (<5 km) apertures and hence relatively coarse angular resolution and sensitivity. Ever-increasing computing power combined with new calibration and imaging techniques make it possible to overcome this restriction. New instruments such as the Long Wavelength Array (LWA) in the southwest US and the Low Frequency Array (LOFAR) in The Netherlands are being proposed for development. As a preparation for these new instruments and as a result of new technologies, many exciting scientific results have been obtained at long wavelengths (< 1 GHz) in the past several years and continue to be generated, even with the very limited capabilities presently available. Since the last extensive discussion of long wavelength astrophysics was held in 2004 September, and that was a relatively local meeting, it is a good time to bring the world community of interested astronomers together to discuss new results and plan for advanced instruments to fully open this poorly studies wavelength range.

Date: Monday, August 21
Location: Club H

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JD13 - EXPLOITING LARGE SURVEYS FOR GALACTIC ASTRONOMY

Tuesday 22 (full day) &, Wednesday 23 (a.m.) August 2006

Coordinating Divisions: IV
Participating Divisions/Commissions: I, V, VII & IX /8, 25, 27, 30, 33, 35 & 45

Scientific Organizing Committee
Christopher Corbally (Vatican City State/USA, co-Chair), Coryn Bailer-Jones (Germany, co-Chair), Sunetra Giridhar (India, co-Chair), Laurent Eyer (Switzerland), Thomas H. Lloyd-Evans (UK), Dante Minniti (Chile), Heather Morrison (USA), Birgitta NordstrĂ¶m (Denmark), Imants Platais (USA), and Patricia A. Whitelock (South Africa)

Preliminary Scientific Program Topics

Review of major surveys: photometric, spectroscopic, radial velocity, astrometric, variable star
Impact of these data on models of the formation and evolution of the Galaxy and its substructures
Limitations of surveys: photometric accuracy, spectroscopic discrimination, calibration, parameterization, population synthesis
Future strategies for space- and ground-based surveys
Contributed proposals for optimizing surveys and discussion

Date: Tuesday, August 22 - Wednesday, August 23
Location: Club A

Detailed information | List of registered participants | List of registered abstracts

JD14 - MODELLING DENSE STELLAR SYSTEMS

Tuesday 22 (p.m.) & Wednesday 23 (full day) August 2006

Coordinating Divisions: VII
Participating Divisions/Commissions: 26, 33, 35 & 37

Scientific Organizing Committee
Christian M. Boily (France), Melvyn B. Davies (Sweden), Douglas C. Heggie (UK), Piet Hut (USA), Ralf S. Klessen (Germany), Junichiro Makino (Japan), Rosemary A. Mardling (Australia), Stephen L.W. McMillan (USA), Georges Meylan (Switzerland), Giampaolo Piotto (Italy), Simon F. Portegies Zwart (The Netherlands), Alison I. Sills (Canada, co-Chair), Rainer Spurzem (Germany), and Ladislav Subr (Czech Republic, co-Chair)

Preliminary Scientific Program Topics

Current observations of star clusters and galactic nuclei
Modelling local interactions, e.g., direct stellar collisions, perturbed binary evolution
Modelling global interactions, e.g., whole cluster models, star formation in crowded regions
The most complete models of dense stellar systems, including feedback between stellar evolution, stellar dynamics, and stellar hydrodynamics, and confrontation with observed systems

Date: Tuesday, August 22 - Wednesday, August 23
Location: Meeting Hall IV

Detailed information | List of registered participants | List of registered abstracts

JD15 - NEW COSMOLOGY RESULTS FROM THE SPITZER SPACE TELESCOPE

Tuesday 22 & Wednesday 23 (a.m.) August 2006

Coordinating Divisions: XI
Participating Divisions/Commissions: 28, 44 & 47

Scientific Organizing Committee
J. Bergeron (France), C. Cesarsky (France), V. Charmandaris (Greece), T. Courvoisier (Switzerland), G. Helou (USA, Chair), M. Im (Republic of South Korea), L. Infante (Chile), R. Ivison (UK), H. Okuda (Japan), Jan PalouĹˇ (Czech Republic), C. Steidel (USA), and R. Sunyaev (Russian Federation). Additional invitations have been issued, but no confirmation obtained

Preliminary Scientific Program Topics

Overview of Spitzer Space Telescope mission and related science
The Modern Universe, z~0 out to z~1 Local Universe results (e.g. SINGS), wide-area surveys (e.g. FLS, SWIRE)
The Middle Universe, z~1 to 3 Deep mid- and far-IR surveys, e.g. Groth Strip, GOODS, S-COSMOS
The Distant Universe, z~3 to 5 and beyond Ultra-deep surveys (GOODS, GTO), lensing surveys
The Earliest Denizens of the Universe, z>5
Integrated phenomenological and theoretical perspectives
Galaxy populations from various wavelength surveys, their evolution and their inter-relations
Cosmic star formation history, galaxy merger history
Consistency with metallicity data, cosmic background data, other constraints
AGN versus starburst fraction and its evolution
Local analogs to early universe objects, e.g., low metallicity, emergent starbursts
ULIRGs and their role in the big picture, e.g., duty cycle, evolutionary paths

Date: Tuesday, August 22 - Wednesday, August 23
Location: Small Hall

Detailed information | List of registered participants | List of registered abstracts

JD16 - NOMENCLATURE, PRECESSION AND NEW MODELS IN FUNDAMENTAL ASTRONOMY

Tuesday 22 (full day) & Wednesday 23 (a.m.) August 2006

Coordinating Divisions: I
Participating Divisions/Commissions: X/4, 5, 7, 8, 19, 31 & 40

Scientific Organizing Committee
Nicole Capitaine (France, co-Chair), Aleksander Brzezinski (Poland), Mark R. Calabretta (Australia), Veronique Dehant (Belgium), Toshio Fukushima (Japan), James L. Hilton (USA, co-Chair), Kenneth J. Johnston (USA), Irina I. Kumkova (Russian Federation), Andrea Milani (Italy), Robert A. Nelson (USA), Kenneth P. Seidelmann (USA), Michael Soffel (Germany), and Jan VondrĂˇk (Czech Republic, co-Chair)

Preliminary Scientific Program Topics

State of the art in both the nomenclature in fundamental astronomy and in high-accuracy models for precession, the ecliptic and other astrometric models for reducing high-accuracy observations
New definitions, methods, high-accuracy models and newly proposed terminology and their implementation
Scientific applications of high-accuracy astrometric observations, models and accurate realizations of reference systems for ephemerides, celestial mechanics, astrometry, Earth rotation, time and radio-astronomy
Work and recommendations of the Division I Working Groups on Nomenclature for Fundamental astronomy, Precession and the Ecliptic and Relativity for Celestial mechanics, astrometry and metrology
The most recent astrometric models for precession, nutation, light deflection, relativistic transformation to the Solar system and the Earth, etc.
Science with high-accuracy astronomy

Date: Tuesday, August 22 - Wednesday, August 23
Location: Club H

Detailed information | List of registered participants | List of registered abstracts

JD17 - HIGHLIGHTS OF RECENT PROGRESS IN THE SEISMOLOGY OF THE SUN AND SUN-LIKE STARS

Wednesday 23 August 2006

Coordinating Divisions: II
Participating Divisions/Commissions: IV, V/12, 27 & 35

Scientific Organizing Committee
Bo N. Andersen (Norway), H.M. Antia (India), Annie Baglin (France), Paul S. Cally (Australia), Fabien Carrier (Switzerland), Hans Kjeldsen (Denmark), John W. Leibacher (USA, co-Chair), Jaymie Matthews (Canada), Maria P. Di Mauro (Italy), Mario J.P.F.G Monteiro (Portugal), Pere L. Palle (Spain), Philip H. Scherrer (USA), Michael J. Thompson (UK, co-Chair), Sylvaine Turck-Chieze (France), Hiromoto Shibahashi (Japan), and Yousef Zhugzda (Russian Federation)

The seismology and physics of localized structures beneath the surface of the Sun takes on a special significance with the completion of a solar cycle of high quality observations in 2006, at the same time that the testing of models of stellar structure moves into high gear with the extension of deep probes from the Sun to other solar-like stars and other multi-mode pulsators. This JD will provide the forum for practitioners in these various fields to synthesize and summarize the current state of these two closely related and rapidly developing fields.

Date: Wednesday, August 23
Location: Small Theater

Detailed information | List of registered participants | List of registered abstracts

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