Proceedings of the Galactic Center Workshop 2002 : The Central 300 Parsecs of the Milky Way. Astronomische Nachrichten Supplementary Issue 1/2003

by Editor: Angela Cotera (SETI Institute, Arizona State University, USA); Editor: Sera Markoff (Max-Planck-Institute for Radio Astronomy, Bonn, Germany, Bonn, Germany); Editor: Thomas R. Geballe (Gemini Observatory, Haiti); Editor: Heino Falcke (Max

• ISBN13: 9783527404667
• ISBN10: 352740466X
• Edition: SUPPLEMENT
• Format: Hardcover
• Copyright: 2004-03-01
• Publisher: Wiley-VCH

Summary

Our knowledge of the environment of the nucleus of our galaxy has been greatly enhanced, by more extensive and sensitive observations at radio and infrared wavelengths, the advent of high resolution x-ray imaging and spectroscopy, and considerable theoretical activity to understand the nucleus and its components, and their activity. The Galactic Center Workshop 2002 was organized to review recent research on the galactic center, including the latest state-of-the-art observations and important theoretical developments. The workshop covered phenomena on scales ranging from the central several hundred parsecs to the central parsec and within. Each topic was approached from both multi-wavelength observational and theoretical perspectives.

Table of Contents

High-resolution Hi Absorption Observations towards the Central 200 pc of the Galaxy	p. 7
High Resolution, High Sensitivity Imaging of the Galactic Center at 330 MHz	p. 9
Spatially Resolved Very Large Array 74 MHz Observations Toward the Galactic Center	p. 17
Chandra view of the central 300 pc of our Galaxy	p. 25
Two Thousand X-ray Stars in the Central 20 pc of the Galaxy	p. 33
Magnetic field in the Galactic Centre: Rotation Measure observations of extragalactic sources	p. 41
Study of the Nuclear Bulge region of the Galaxy	p. 47
A morphological Study of the Galactic Inner Bulge	p. 53
Warm molecular gas, dust and ionized gas in the 500 central pc of the Galaxy	p. 59
Prospects for LOFAR Observations of the Galactic Center	p. 65
43 GHz SiO masers in late-type stars with 86 GHz SiO masers and astrometry with VERA in the Galactic center	p. 73
A Search for Radio Transients at 0.33 GHz in the GC	p. 79
A Molecular Face-on View of the Galactic Center Region	p. 85
The Inner 200pc: Hot Dense Gas	p. 93
Gravitational Stability of Molecular Clouds in the Galactic Center	p. 101
Spectroscopy of Hydrocarbon Grains toward the Galactic Center and Quintuplet Cluster	p. 109
X-rays from the HII Regions and Molecular Clouds near the Galactic Center	p. 117
Reflected X-ray Emissions on Giant Molecular Clouds - Evidence of the Past Activities of Sgr A	p. 125
Observation of Toroidal Magnetic Fields on 100 pc Scales in the Galactic Center	p. 133
Extended photoionization and photodissociation in Sgr B2	p. 139
Propagation of charged particles from the Galactic Center	p. 145
Discovery of New SNR Candidates in the Galactic Center Region with ASCA and Chandra	p. 151
Molecular LineObservations of the Tornado Nebula and its Eye	p. 157
The Search for Water and Other Molecules in the Galactic Centre with the Odin Satellite	p. 161
Deep X-Ray Imaging of the Central 20 Parsecs of the Galaxy with Chandra	p. 167
Mapping Magnetic Fields in the Cold Dust at the Galactic Center	p. 173
The Galactic Center Nonthermal Filaments: Recent Observations and Theory	p. 181
Interaction between the Northeastern Boundary of Sgr A East and Giant Molecular Clouds: Excitation Mechanisms of the H[subscript 2] Emission	p. 189
Sgr A East and its surroundings - a view with XMM-Newton	p. 197
Chandra ACIS Imaging Spectroscopy of Sgr A East	p. 205
A Census of Dust Absorption at the Galactic Centre	p. 211
Thermal SiO observations of a shell attached to the nonthermal filaments in Sgr A	p. 217
Absorption and Emission in the Four Ground-State OH Lines Observed at 18 cm with the VLA Towards the Galactic Centre	p. 223
Constraints on distances to Galactic Centre non-thermal filaments from HI absorption	p. 229
Discovery of a non-thermal X-ray filament in the Galactic Centre	p. 235
High-negative velocities in the inner 25 pc of the Galactic center	p. 241
Really Cool Stars and the Star Formation History at the Galactic Center	p. 247
Massive Stars and The Creation of our Galactic Center	p. 255
The Galactic Center Source IRS 13E: a Star Cluster	p. 263
X-ray Emission from Stellar Clusters Near the Galactic Center	p. 271
Simulated X-ray emission from the Arches cluster	p. 279
SiO Maser Sources within 30 pc of the Galactic Center	p. 285
86 GHz SiO masing late-type stars in the Inner Galaxy	p. 293
CNO Abundances in the Quintuplet Cluster M Supergiant 5-7	p. 299
New results on the Galactic Center Helium stars	p. 303
Ten Thousand Stars Toward the Galactic Center	p. 309
Stellar Orbits at the Center of the Milky Way	p. 315
Dynamical Friction near the Galactic Center	p. 321
Near-infrared adaptive optics observations of the Galactic Center with NAOS/CONICA (ESO) and GriF (CFHT)	p. 327
Radio Pulsars in the Galactic Center	p. 333
Review of low-mass X-ray binaries near the Galactic center	p. 337
Neutrons, neutrinos, and gamma-rays from the Galactic Center	p. 343
Linear and Circular Polarization from	p. 349
Intrinsic Radio Variability of Sgr A[superscript *]	p. 355
Flares of Sagittarius A[superscript *] at Short Millimeter Wavelengths	p. 363
Limits on the Short Term Variability of Sagittarius A[superscript *] in the Near-Infrared	p. 371
A New X-Ray Flare from the Galactic Nucleus Detected with XMM-Newton	p. 377
Searching for Structural Variability in Sgr A[superscript *]	p. 383
Observations of the Galactic Centre at 610 MHz with the GMRT	p. 391
Closure Amplitude Analysis of 15, 22 and 43GHz VLBA Observations of Sagittarius A[superscript *]: Size is Consistent with the Scattering Law	p. 397
VLBA observation of a radio intraday flare of Sgr A[superscript *]	p. 403
A Chandra View of Diffuse X-Ray Emission in the Central 20 Parsecs of the Galaxy	p. 407
Investigating the submillimetre variability of Sagittarius A[superscript *] with SCUBA	p. 413
Near-Infrared Flux Limits for Sgr A[superscript *] Based on NICMOS Data	p. 419
The wavelength dependence of Sgr A[superscript *] size and the unified model of compact radio sources	p. 425
Search for Circular Polarization toward Sagittarius A[superscript *] at 100 GHz	p. 431
Radiatively Inefficient Accretion Flow Models of Sgr A[superscript *]	p. 435
Jet Models for Flaring in Sgr A[superscript *]	p. 445
A Jet-ADAF Model for Sgr A[superscript *]	p. 453
A model for polarised radio emission from Sgr A[superscript *]	p. 459
On the Chandra Detection of Diffuse X-Ray Emission from Sgr A[superscript *]	p. 467
A Relativistic Disk in Sagittarius A[superscript *]	p. 475
The frozen (inactive) disk in Sgr A[superscript *]: Freezing the accretion of the hot gas too?	p. 483
Gamma-ray emission from an ADAF around a Kerr black hole	p. 491
The Discovery of Sgr A[superscript *]	p. 497
The Position, Motion, and Mass of Sgr A[superscript *]	p. 505
Tidal processes very near the black hole in the Galactic Center	p. 513
New MIR Excess Sources north of the IRS 13 Complex	p. 521
Full Three Dimensional Orbits For Multiple Stars on Close Approaches to the Central Supermassive Black Hole	p. 527
The Galactic Center stellar cluster: The central arcsecond	p. 535
Stellar Dynamics in the Galactic Center: 1000 Stars in 100 Nights	p. 543
A Bow Shock of Heated Dust Surrounding IRS 8	p. 551
Monitoring Sagittarius A[superscript *] in the MIR with the VLT	p. 557
The magnetic field in the central parsec	p. 563
Mid-Infrared Imaging and Spectroscopic Observations of the Galactic Center with Subaru/COMICS	p. 567
Physical Conditions in the Central Parsec Modeled from Mid-Infrared Imaging Photometry	p. 573
LINC/NIRVANA - The LBT Near-Infrared Interferometric Camera	p. 577
Hot Molecular Gas in the Central 10 Parsecs of the Galaxy	p. 583
The ISM and Stellar Distributions Near Sgr A[superscript *]	p. 591
Resolving The Northern Arm Sources at the Galactic Center	p. 597
Structural analysis of the Minispiral from high-resolution Br[gamma] data	p. 605
Gas physics and dynamics in the central 50 pc of the Galaxy	p. 613
The First Measurement of Radial Acceleration of Ionized Gas Near Sagittarius A[superscript *]	p. 621
Simple hydrodynamical Simulations of the Circumnuclear Disk	p. 629
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