Chemical Abundances and Mixing in Stars in the Milky Way and its Satellites (eBook)

Proceedings of the ESO-Arcetrie Workshop held in Castiglione della Pescaia, Italy, 13-17 September, 2004

S. Randich, L. Pasquini (Herausgeber)

eBook Download: PDF

2006 | 2006
XXIV, 391 Seiten
Springer Berlin (Verlag)
978-3-540-34136-9 (ISBN)

Infos

This proceedings covers topics from chemical abundances in the different components of the Milky Way and in local group galaxies, via observational and theoretical papers on mixing in stars to big bang nucleosynthesis and galaxy formation and evolution. Like all volumes in the series ESO Astrophysics Symposia, this one gives a comprehensive overview of the forefront of research in this subject. It is a valuable reference for both students and researchers.

Inhalt

Preface 5
Contents 7
List of Participants 17
Abundances in the Thin and Thick Disks 25
Metallicities and a-Abundances in Open Clusters 26
Old Open Clusters as Tracers of Galactic Chemical Evolution: the BOCCE Project 32
Chemical Abundances and Mixing in Red Clump Stars of the Galaxy 34
Abundance Trends in the Thin and Thick Disks 36
On the Chemical Abundances of Stars with Giant Planets 42
Observational Constraints on Nucleosynthesis in AGB Stars 46
Advances in Chemical Abundances in Planetary Nebulae 50
A Comparison of Methods for Photospheric Abundance Determinations in K- Type Stars 54
S/R Ratio in Barium Stars 56
Observations of 3He in Planetary Nebulae 58
Chemical Composition and Kinematics of Disk Stars 60
Cu and Zn in Thick-Disk and Thin-Disk Stars 62
NGC2324: A Relatively Young, Metal-Poor Open Cluster Located Beyond the Perseus Spiral Arm 64
Fluorine Abundances in the Galaxy 67
Determination of the Age of the Galactic Thin Disk from Th/ Eu Stellar Abundance Ratios 69
CNO Abundances in Giants with Precise Radial Velocity Measurements 71
Oxygen in Metal-Rich Stars: Abundances from [ O I] 6300, OI 7771– 5 and Near- UV OH 73
Ci Non-LTE Spectral Line Formation in Late- Type Stars 75
Does the [a/Fe] Abundance Ratio Trend Reverse at Super- Solar Regime? A Test on the Role of Accurate Knowledge of Atmospheric Parameters 77
Abundances and Ages of the Deconvolved Thin/ Thick Disks of the Galaxy 79
Studying Old Open Clusters with Detached Eclipsing Binaries 81
Isotopic Abundances in RGB- and AGB-Stars 83
Abundance Variations in the Galactic Disk: Planetary Nebulae, Open Clusters and Field Stars 85
Some Concerns About the Reliability of LTE Abundance Analyses in Cool, Active Stars 87
Chemo-Dynamical Properties of F-G-K Stars in the - 1.0< [ Fe/ H]<
Does Rotation of B Stars Depend on Metallicity? Preliminary Results from GIRAFFE Spectra 91
Metallicity in Open Clusters 93
Light- and Heavy-Element Abundances from Mid- UV and Optical Spectral Syntheses 95
FLAMES Observations of the Star Forming Region NGC 6530 97
The Not-so-MAD Coronal Abundances of Active Stars 99
Fundamental Parameters of B Supergiants 101
High Precision Effective Temperatures and New Abundances for a Large Sample of Disk Stars 103
Elemental Abundances in 10 Dwarfs of the Galactic Thick Disk 105
Abundances in the Spheroidal Component 107
Abundances in the Galactic Bulge 108
Abundance Ratios in the Galactic Bulge 114
Abundances in Globular Cluster Dwarfs/ Subgiants 116
Unraveling the Origins and History of the Outer Halo Cluster System 122
Chemical Abundance Inhomogeneities in Globular Cluster Stars 124
Red Giants Survey in w Cen: Preliminary FLAMES GTO Results 128
Galactic Evolution of Carbon and Nitrogen 130
First Stars: Abundance Patterns from O to Zn and Derived SNe Yields in the Early Galaxy 135
Nitrogen in the Early Universe 141
Abundance of Heavy Elements in Extremely Metal- Poor Stars 143
The Chemical Compositions of Carbon- Enhanced Metal- Poor Stars 145
Lead Stars at Low Metallicity: Observation versus Theory 147
Sulphur in the Early Ages of the Galaxy 149
Star Clusters in the Galactic Anticenter Stellar Structure: New Radial Velocities & Metallicities
Abundance Variations in NGC 288, NGC 362 and NGC 1851 153
Heavy Elements and Chemical Enrichment in Globular Clusters 155
The Effect of Metallicity on Pulsations in B- Type Stars in the Magellanic Clouds 157
VLT-FLAMES Observations of a Large Sample of Bulge Clump Giants 159
B12, a Be-Type Star with a Low Nitrogen Abundance in NGC 330 161
Chemical Abundances of Three Metal-Poor Globular Clusters in the Inner Halo 163
From C-Enhanced, Metal Poor Stars to AGB Nucleosynthesis 165
The Metallicity Dependence of the Cepheid Period- Luminosity Relation: Methodology and Results 167
Chemical Abundances of Supersolar Metallicity Stars of Bulgelike Kinematics 169
Abundance Anomalies in Hot Horizontal Branch Stars of the Galactic Globular Cluster NGC 1904 172
Spectroscopy of Blue Stragglers and Turnoff Stars in NGC 2506 with FLAMES 175
Chemical Inhomogeneities in the Stellar System w Centauri 177
High Resolution IR Spectroscopy of Bulge Globular Clusters 179
Tracing Mixing in Stars 181
Pre-Main-Sequence Lithium Depletion 182
Li, Be and B Destruction in Astrophysical Environments: Indirect Cross Section Measurements 190
Mixing on the Main Sequence: Lithium and Beryllium in Old Open Clusters 192
Lithium and Metallicity in the Intermediate Age Open Cluster NGC 752 198
Multi-Object Spectroscopy of Open Clusters with FLAMES: Preliminary GTO Results 200
The Halo Lithium Plateau: Outstanding Issues 204
Lithium and Beryllium in Globular Cluster Stars 210
Lithium Rich Red Giant Branch Stars 215
Evidence of Mixing in Extremely Metal-Poor Giants 219
Mixing and CNO Abundances in M Supergiants 223
GIRAFFE Observations in 47 TUC: LithiumAbundances Along the RedGiant Branch 225
Is an Engulfment Event at the Origin of the Li- Rich Giants? 227
Local Group Galaxies 230
Abundances as Tracers of the Formation and Evolution of ( Dwarf) Galaxies 231
Abundances in Local Group Early-Type Stars 237
The Extreme Ends of the Metallicity Distribution in dSph Galaxies 241
UVES Detailed Chemical Abundances in the Sgr dSph and the CMa Overdensity 246
The Metallicity Distribution and Its Gradients in the LMC via Calcium Triplet Spectroscopy 248
Abundances in Sagittarius Stars 250
The Composition of the Sagittarius Dwarf Spheroidal Galaxy and Implications for Nucleosynthesis and Chemical Evolution 254
The Metallicity-Luminosity Relation for Local Group Dwarf Galaxies 256
Chemical Abundances and Milky Way Formation 258
Chemical Evolution in the Carina Dwarf Spheroidal 267
Chemical Connections Between Stars in the Galaxy and its Satellites 270
Abundances in Damped Lya Galaxies 274
Metallicities and Kinematics for Dwarf Spheroidals in the Local Group 278
Chemical Analysis of Extragalactic Carbon Stars 280
Should Chemical Abundance Distributions of Satellites Look Like Their Stellar Halos? 282
Germanium in Damped Lyman- a Systems and Copper Connection 284
VLT/UVES Abundances of Individual Stars in the Fornax Dwarf Spheroidal Globular Clusters 286
Chemical Abundances of RGB-Tip Stars in the Sagittarius Dwarf Spheroidal Galaxy 288
Photometry and Spectroscopy of Bright Stars in the Carina dSph Galaxy 290
Mixing Processes – Models 292
Rotation and Internal Gravity Waves in Low- Mass Stars 293
Helioseismic Evidence for Mixing in the Sun 300
Clarifying Problems in the Description of Pre Main Sequence Evolution 304
Pinning Down Gravitational Settling 310
Extra-Mixing During the Red Giant Branch Evolution of Low- Mass Stars 314
Rotation-Induced Mixing in Red Giant Stars 320
3D Hydrodynamical Simulations of Convection in Red- Giants Stellar Atmospheres 322
Rotational Mixing in Massive Stars and Its Many Consequences 324
Massive Rotating Stars at Very Low Metallicity 330
The r-Process Yields in Massive Stars 332
Inhomogeneous Enrichment of r- Process Elements in Our Galaxy 334
The Weak sr( p)- Process in Massive Stars 336
Nucleosynthesis in Low Mass Very Metal Poor AGB Stars 338
A New Class of Type Ia Supernovae Inferred from Abundance Patterns of Halo Stars and High- z Galaxies 340
The Influence of the Treatment of Convection on the AGB Stars Yields 342
Implications for BBN and Galaxy Formation and Evolution 344
BBN and the Primordial Abundances 345
The Cosmic Saga of 3He 357
First Epoch Observations of 3He with the Green Bank Telescope 363
Li, Be, B and Cosmic Rays in the Galaxy 365
Abundance Ratios and the Formation of the Milky Way 372
Chemical and Photometric Evolution of NGC 6822 in a Cosmological Context 374
The Chemical Evolution of Dwarf Spheroidals 376
Chemical Evolution of Late-Type Dwarfs 381
N/O Abundance Ratios: Milky Way and DLAs 385
The Effects of Pop III Stars on the Abundances of Spheroids 387
Radio Recombination Line (RRL) Observations: Primordial Helium Determination and First Results at 408 MHz with the Croce del Nord Radiotelescope 389
Multipopulation Models for Galactic Star Formation and Chemical Evolution. Effects of Stochastic Accretion and Collisional Stripping ( Especially for Deuterium) 391
Chemical Abundances in the Local Group: Where Are We Going Next? 394
Author Index 400

Produkt-Details

• Erscheint lt. Verlag: 25.9.2006
• Reihe/Serie: ESO Astrophysics Symposia
• Reihe/Serie: ESO Astrophysics Symposia
• Zusatzinfo: XXIV, 391 p. 166 illus., 15 illus. in color.
• Verlagsort: Berlin
• Sprache: englisch
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Astronomie / Astrophysik
• Themenwelt: Technik
• Schlagworte: astrophysics • Chemical Abundances • Element Abundances • Galaxies • Galaxy • ISM • Nucleosynthesis • Star • Stars
• ISBN-10: 3-540-34136-6 / 3540341366
• ISBN-13: 978-3-540-34136-9 / 9783540341369