New models for the evolution of Post-Asymptotic Giant Branch stars and Central Stars of Planetary Nebulae

Abstract

The Post Asymptotic Giant Branch (AGB) phase is arguably one of the least understood phases of the evolution of low- and intermediate- mass stars. The two grids of models presently available are based on outdated micro- and macro-physics and do not agree with each other. We study the timescales of post-AGB and CSPNe in the context of our present understanding of the micro- and macro-physics of stars. We want to assess whether new post-AGB models, based on the latter improvements in TP-AGB modeling, can help to understand the discrepancies between observation and theory and within theory itself. We compute a grid of post-AGB full evolutionary sequences that include all previous evolutionary stages from the Zero Age Main Sequence to the White Dwarf phase. Models are computed for initial masses between 0.8 and 4 $M_{\odot }$ and for a wide range of initial metallicities ($Z_0=$0.02, 0.01, 0.001, 0.0001), this allow us to provide post-AGB timescales and properties for H-burning post-AGB objects with masses in the relevant range for the formation of planetary nebulae ($\sim$ 0.5 - 0.8, $M_{\odot }$). We find post-AGB timescales that are at least $\sim 3$ to $\sim 10$ times shorter than those of old post-AGB stellar evolution models. This is true for the whole mass and metallicity range. The new models are also $\sim$ 0.1 - 0.3 dex brighter than the previous models with similar remnant masses. Post-AGB timescales show only a mild dependence on metallicity. The shorter post-AGB timescales derived in the present work are in agreement with recent semiempirical determinations of the post-AGB timescales from the CSPNe in the Galactic Bulge. Due to the very different post-AGB crossing times, initial-final mass relation and luminosities of the present models, they will have a significant impact in the predictions for the formation of planetary nebulae and the planetary nebulae luminosity function.

Main Article: 16 pages, 12 figures and 3 tables. Main Article + Appendices: 22 Pages, 16 figures and 6 tables. Accepted for publication in A&A. (Revised to match the final version accepted for publication in A&A)

References in corpus (23)

• The Dartmouth Stellar Evolution Database
• The Dawes Review 2: Nucleosynthesis and stellar yields of low and intermediate-mass single stars
• Primordial Nucleosynthesis in the Precision Cosmology Era
• Updated Electron-Conduction Opacities: The Impact on Low-Mass Stellar Models
• The ACS Nearby Galaxy Survey Treasury IX. Constraining asymptotic giant branch evolution with old metal-poor galaxies
• Stellar Models and Yields of Asymptotic Giant Branch Stars
• Super and massive AGB stars - IV. Final fates - Initial to final mass relation
• The initial-final mass relationship of white dwarfs revisited: effect on the luminosity function and mass distribution
• Too little radiation pressure on dust in the winds of oxygen-rich AGB stars
• A close halo of large transparent grains around extreme red giant stars
• Standard big bang nucleosynthesis and primordial CNO Abundances after Planck
• White dwarf evolutionary sequences for low-metallicity progenitors: The impact of third dredge-up
• Evolution of Thermally Pulsing Asymptotic Giant Branch Stars IV. Constraining Mass-Loss & Lifetimes of Low Mass, Low Metallicity AGB Stars
• A critical test of empirical mass loss formulae applied to individual giants and supergiants
• The Evolution of NGC 7027 at Radio Frequencies: A New Determination of the Distance and Core Mass
• Confronting uncertainties in stellar physics: calibrating convective overshooting with eclipsing binaries
• Exploring wind-driving dust species in cool luminous giants III. Wind models for M-type AGB stars: dynamic and photometric properties
• The Dearth of UV-Bright Stars in M32: Implications for Stellar Evolution Theory
• The TP-AGB phase. Lifetimes from C and M star counts in Magellanic Cloud clusters
• Accelerated post-AGB evolution, initial-final mass relations, and the star-formation history of the Galactic bulge
• Formation and X-ray emission from Hot Bubbles in Planetary Nebulae. I. Hot Bubble formation
• A hydrodynamical study of multiple-shell planetary nebulae. III. Expansion properties and internal kinematics: Theory versus observation
• Hubble Space Telescope Snapshot Search for Planetary Nebulae in Globular Clusters of the Local Group

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