Book contents
- Frontmatter
- Contents
- List of Contributors
- Foreword
- Introduction
- 1 The Zoo of Binary Stars
- 2 Statistics of Binary and Multiple Stars
- 3 Gaia and LSST: Their Importance in Binary Star Research
- 4 Population Synthesis of Binary Stars
- 5 Low- and Intermediate-Mass Star Evolution: Open Problems
- 6 The Symbiotic Stars
- 7 Binary Post-AGB Stars as Tracers of Stellar Evolution
- 8 The Importance of Binarity in the Formation and Evolution of Planetary Nebulae
- 9 Massive Star Evolution: Binaries as Two Single Stars
- 10 Binarity at High Masses
- 11 Luminous Blue Variables: Their Formation and Instability in the Context of Binary Interactions
- 12 Type Ia Supernovae: Where Are They Coming From and Where Will They Lead Us?
- 13 Binary Interactions and Gamma-Ray Bursts
- 14 Binaries as Sources of Gravitational Waves
- 15 The Impact of Binaries on the Stellar Initial Mass Function
- 16 The Formation of Binary Stars: Insights from Theory and Observation
- 17 The Maxwell’s Demon of Star Clusters
- 18 Alternative Stellar Evolution Pathways
- 19 Clocks and Scales: Playing with the Physics of Blue Stragglers
- 20 Binaries at Very Low Metallicity
- 21 Population and Spectral Synthesis: It Doesn’t Work without Binaries
- Index
20 - Binaries at Very Low Metallicity
Published online by Cambridge University Press: 05 April 2019
- Frontmatter
- Contents
- List of Contributors
- Foreword
- Introduction
- 1 The Zoo of Binary Stars
- 2 Statistics of Binary and Multiple Stars
- 3 Gaia and LSST: Their Importance in Binary Star Research
- 4 Population Synthesis of Binary Stars
- 5 Low- and Intermediate-Mass Star Evolution: Open Problems
- 6 The Symbiotic Stars
- 7 Binary Post-AGB Stars as Tracers of Stellar Evolution
- 8 The Importance of Binarity in the Formation and Evolution of Planetary Nebulae
- 9 Massive Star Evolution: Binaries as Two Single Stars
- 10 Binarity at High Masses
- 11 Luminous Blue Variables: Their Formation and Instability in the Context of Binary Interactions
- 12 Type Ia Supernovae: Where Are They Coming From and Where Will They Lead Us?
- 13 Binary Interactions and Gamma-Ray Bursts
- 14 Binaries as Sources of Gravitational Waves
- 15 The Impact of Binaries on the Stellar Initial Mass Function
- 16 The Formation of Binary Stars: Insights from Theory and Observation
- 17 The Maxwell’s Demon of Star Clusters
- 18 Alternative Stellar Evolution Pathways
- 19 Clocks and Scales: Playing with the Physics of Blue Stragglers
- 20 Binaries at Very Low Metallicity
- 21 Population and Spectral Synthesis: It Doesn’t Work without Binaries
- Index
Summary
The binary fraction of metal-poor stars provides important constraints on star formation in the early Galaxy, and is a key piece of information in the understanding the origin of the observed high frequency of C enhanced metal-poor stars. It is now widely accepted that a majority of solar metallicity stars are in binaries; it is not clear, however, if this is the case for metal-poor stars. While state-of-the-art models agree in predicting an increase in the binary fraction and a shift towards lower values for the orbital period distribution at extremely low metallicities, the observational findings paint a patchier picture. This chapter summarises the key motivations for the study of binaries in the very metal-poor regime and reviews the current state of the field and the plans for the future.
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- The Impact of Binary Stars on Stellar Evolution , pp. 298 - 306Publisher: Cambridge University PressPrint publication year: 2019