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IAU Symposium 200

The Formation of Binary Stars

held in

Potsdam, Germany
10-15 April 2000

AIP logo

Proceedings

Edited by H. Zinnecker & R.D. Mathieu

hzinnecker@aip.de, mathieu@madraf.astro.wisc.edu

to appear in ASP Conference Series, 2001


Note:
this web site is work in progress and will be available only until the moment when the conference proceedings are published by ASP. Meanwhile papers may still undergo minor editorial changes and incompleteness corrections of the table of contents are likely to occur. Enjoy reading! We welcome your comments.
H. Zinnecker and R.D. Mathieu

Conference Photo

Our conference posters:


Table of Contents (50 kB)
Preface
I. Introduction
II. Theoretical Context: The Big Picture
III. Main Sequence Binary Statistics
IV. Initial Conditions for Binary Formation and Protobinary Systems
V. Pre-Main Sequence Binary Populations
VI. Binary Populations in Young Clusters
VII. Environments of Young Binaries - Direct Imaging
VIII. Environments of Young Binaries - Indirect Observations
IX. Theoretical Context - Detailed Calculations
X. Evolution of Young Binary Systems
XI. Young Binaries and Stellar Astrophysics
XII. Invited Debate: The Status of PMS Tracks
XIII. Planet Formation in Binary Systems
XIV. Frontiers of Observations
XV. Highlights and Farewell
Annexes
I. Introduction
Binary Stars: Historical Milestones (2 MB)
H. Zinnecker
II. Theoretical Context: The Big Picture
Formation of Wide Binaries by Fragmentation (482 kB)
P. Bodenheimer, A. Burkert
The Formation of Close Binary Stars (724 kB)
I. Bonnell
Impulsively Triggered Binary Star Formation (44 kB)
A.P. Whitworth
An Update on Binary Formation by Rotational Fission (38 kB)
J.E. Tohline, R.H. Durisen
III. Main Sequence Binary Statistics
Binaries at the Bottom of the Main Sequence and below (108 kB)
M. Mayor, S. Udry, J.-L. Halbwachs, F. Arenou
Ultra-Cool Very Low-Mass Binaries (56 kB)
E.L. Martin, G. Basri
Binarity of Hipparcos Intermediate-Mass Stars (60 kB)
C.F. Quist, L. Lindegren
Multiplicity of Massive Stars (79 kB)
T. Preibisch, G. Weigelt, H. Zinnecker
Wolf-Rayet Binaries (58 kB)
K.A. van der Hucht, B. Hidayat
Statistics of Multiple Stars: Some Clues to Formation Mechanisms (97 kB)
A. Tokovinin
Summary Talk: Implications of Binary Properties for Theories of Star Formation (60 kB)
R.B. Larson
IV. Initial Conditions for Binary Formation and Protobinary Systems
The Structure and Evolution of Dense Cores (299 kB)
G.A. Fuller
Featured Object: Fragmentation of a Protostellar Core - The Case of CB 230 (252 kB)
R. Launhardt
Turbulence and Cloud Angular Momentum (228 kB)
A. Burkert, P. Bodenheimer
Featured Object: Twin, Aligned Protoplanetary Disks around the Components of the Young Binary System L1551 IRS5 (74 kB)
J.M. Torrelles, L.F. Rodriguez, G. Anglada
Observations of Protobinary Systems (125 kB)
L. Mundy
V. Pre-Main Sequence Binary Populations
Multiplicity in T and OB Associations (139 kB)
R. Köhler, W. Brandner
Herbig Ae/Be Visual Binaries (85 kB)
J. Bouvier, P. Corporon
A Spectroscopic and Photometric Survey for Pre-Main Sequence Binaries (66 kB)
E.W. Guenther, V. Joergens, R. Neuhäuser, G. Torres, N.S. Batalha, J. Vijapurkar, M. Fernández, R. Mundt
VI. Binary Populations in Young Clusters
Binarity in the Orion Trapezium Cluster (1 Mb)
M. McCaughrean
The Properties of Open Cluster Binaries Based on High-Resolution Imaging Surveys (170 kB)
J. Patience, G. Duchene
Spectroscopic Binaries in Young Open Clusters (60 kB)
J.-C. Mermilliod, B. Garcia
Binary Stars in Young Clusters - a Theoretical Perspective (620 kB)
P. Kroupa
Summary Talk: What Can Pre-Main Sequence Binary Star Populations Tell Us about Binary Formation Mechanisms? (142 kB)
A. Ghez
VII. Environments of Young Binaries - Direct Imaging
Interferometric Observations of Disks around PMS Binary Stars (298 kB)
A. Dutrey
Featured Object: GG Tau - The Ringworld Revisited (132 kB)
S. Guilloteau, A. Dutrey
Optical and Near-Infrared Imaging of Young Binary Star Environments (806 kB)
F. Ménard, K. Stapelfeldt
Featured Object: A Detailed Study of the GG Tau Circumbinary Disk (192 kB)
C. McCabe, A.M. Ghez
Outflows from Newborn Multiple Stars (271 kB)
B. Reipurth
Featured Object: Twisted Jets from L1551-IRS5 (187 kB)
Y. Itoh
The Infrared Companions of T Tauri Stars: Clues to the Formation and Early Evolution of Binaries (67 kB)
C. Koresko, C. Leinert
Featured Object: The Close Environment of Z CMa Binary System (177 kB)
P.J.V. Garcia
Statistics of Binary and Multiple Young Stars Observed by Lunar Occultations (67 kB)
A. Richichi
VIII. Environments of Young Binaries - Indirect Observations
Disks in Young Binary Systems: Unresolved Millimeter-Wave Observations (106 kB)
E.L.N. Jensen
Pre-Main Sequence Binaries with Aligned Disks? (558 kB)
S. Wolf, B. Stecklum, T. Henning
Doppler Imaging as a Test for Binary Star Formation Theories (276 kB)
K. Strassmeier
Correlations of Spectral Accretion Signatures in Young Binaries (69 kB)
L. Prato, J.-L. Monin
First Results from a STIS Survey of Close Pre-Main Sequence Binaries in Taurus (208 kB)
S.J. Kenyon, P. Hartigan
Young Binary Stars in Taurus-Auriga (63 kB)
R. White
Featured Object: Disk Clearing in the Young Binary AK Sco (48 kB)
E.L.N. Jensen
Summary Talk: What Can Observations of Young Binaries Tell Us about Binary Formation? (43 kB)
C. Clarke
IX. Theoretical Context - Detailed Calculations
Fragmentation and Star Formation in Turbulent Cores (1128 kB)
R.I. Klein, R. Fisher, C.F. McKee
Impact of Magnetic Fields on Fragmentation (97 kB)
A.P. Boss
Can Disks Produce Companions by Gravitational Fragmentation? (899 kB)
R.H. Durisen
Filament Fragmentation (64 kB)
S. Inutsuka, T. Tsuribe
Outflow from Protostars and Angular Momentum Transfer (1832 kB)
K. Tomisaka
Tidally-Induced Angular Momentum Transport in Disks (34 kB)
C. Terquem
Angular Momentum Transport and Dynamo Effect in Kepler Disks (115 kB)
G. Ruediger, U. Ziegler
X. Evolution of Young Binary Systems
Featured Object: A Brief Introduction to DQ Tau (106 kB)
K. Stassun
Accretion onto Pre-Main Sequence Binary Stars: The Circumstellar Environment (182 kB)
R. Mathieu
Accretion and the Properties of Protobinary Systems (94 kB)
M. Bate
Early Orbital Evolution of Binaries: Overview and Outlook (80 kB)
P. Artymowicz, S.H. Lubow
XI. Young Binaries and Stellar Astrophysics
Featured Objects: The Intriguing PMS Eclipsing (Triple) System TY CrA (39 kB)
L.P.R. Vaz
Measuring the Masses of Young Stars (119 kB)
M. Simon
Featured Object: A Relative Age Test of Pre-Main Sequence Evolutionary Models Based on the Young Quadruple System GG Tauri (49 kB)
R. White
Featured Object: The PMS Eclipsing Binary RXJ 0529.4+0041 (118 kB)
E. Covino, S. Catalano, A. Frasco, E. Marilli, J.M.Alcalá, M. Fernández, C. Melo, R. Paladino, B. Stelzer
Testing Pre-Main Sequence Models with Young Binaries (88 kB)
F. Palla
XII. Invited Debate: The Status of PMS Tracks
Pre-Main Sequence Models for Low-Mass Stars and Brown Dwarfs (84 kB)
I. Baraffe, G. Chabrier, F. Allard, P. Hauschildt
A Dialogue on Dynamical Pre-Main Sequence Tracks (48 kB)
G. Wuchterl
Unresolved Pre-Main Sequence Binaries in the HR Diagram (57 kB)
P. Hartigan, S.J. Kenyon
The Effect of Unresolved Binaries on the Low-Mass IMF (74 kB)
O. Malkov, H. Zinnecker
Fun for Two (44 kB)
S. Portegies Zwart
XIII. Planet Formation in Binary Systems
Planet Formation in Binary Systems (105 kB)
W. Kley
Comparison between Extrasolar Planets and Low-Mass Secondaries (77 kB)
T. Mazeh, S. Zucker
XIV. Frontiers of Observations
Microlensing: A Tool to Probe Distant Binary Populations (58 kB)
R. Di Stefano
Optical and Infrared Long-Baseline Interferometry: Application to Binary Star Science (60 kB)
A. Quirrenbach
The Future of mm/submm Interferometry: The ALMA project (200 kB)
S. Guilloteau
Adaptive Optics Imaging of Faint Companions: Current & Future Prospects (197 kB)
L. Close
Future Opportunities in Young Binary Star Research with Space Observatories (36 kB)
K. Stapelfeldt
Numerical Hydrodynamics: SPH versus AMR (34 kB)
T. Plewa
Frontiers of Radiative Transfer (438 kB)
T. Henning
XV. Highlights and Farewell
Impressions of IAU-Symposium 200 (53 kB)
R. Ebert
Summary and Reflections (54 kB)
R. Mathieu
Annexes
A Few Faces at IAU 200
sketched by Y.Y. Balega
List of Participants

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