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
7 - Binary Post-AGB Stars as Tracers of Stellar Evolution
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
In this chapter, the focus is on the properties of post–Asymptotic Giant Branch (post-AGB) stars in binary systems. Their spectral energy distributions (SEDs) are very characteristic: they show a near-infrared excess, indicative of the presence of warm dust, while the central stars are too hot to be in a dust-production evolutionary phase. This allows for an efficient detection of binary post-AGB candidates. It is now well established that the near-infrared excess is produced by the inner rim of a stable dusty disc that surrounds the binary system. These discs are scaled-up versions of protoplanetary discs and form a second generation of stable Keplerian discs. They are likely formed during a binary interaction process when the primary was on ascending the AGB. The chapter summarises what has been learnt so far from the observational properties of these post-AGB binaries. The impact of the creation, lifetime and evolution of the circumbinary discs on the evolution of the system is yet to be fully understood.
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- The Impact of Binary Stars on Stellar Evolution , pp. 92 - 105Publisher: Cambridge University PressPrint publication year: 2019
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