The presupernova core mass-radius relation of massive stars: understanding its formation and evolution

Abstract

We present a fine grid of solar metallicity models of massive stars (320 in the range 12$\le$M(\msun)$\le$27.95), extending from the Main Sequence up to the onset of the collapse, in order to quantitatively determine how their compactness ${\xi }_{2.5}$ (as defined by O'Connor $\&$ Ott, 2011, ApJ 730, 70) scales with the Carbon Oxygen core mass at the beginning of the core collapse. We find a well defined, not monotonic (but not scattered) trend of the compactness with the Carbon Oxygen core mass that is strictly (and mainly) correlated to the behavior, i.e. birth, growth and disappearance, of the various C convective episodes that follow one another during the advanced evolutionary phases. Though both the mass size of the Carbon Oxygen core and the amount of \nuk{C}{12} left by the He burning play a major role in sculpting the final Mass-Radius relation, it is the abundance of \nuk{C}{12} the ultimate responsible for the final degree of compactness of a star because it controls the ability of the C burning shell to advance in mass before the final collapse.

22 pages, 10 figures

References in corpus (4)

• The Evolution of Massive Helium Stars Including Mass Loss
• Neutron star kicks by the gravitational tug-boat mechanism in asymmetric supernova explosions: progenitor and explosion dependence
• The Progenitor Dependence of the Preexplosion Neutrino Emission in Core-Collapse Supernovae
• Three-Dimensional Supernova Explosion Simulations of 9-, 10-, 11-, 12-, and 13-M${}_{\odot }$ Stars

Cited by in corpus (35)

• Different to the core: the pre-supernova structures of massive single and binary-stripped stars
• Pre-supernova evolution, compact object masses and explosion properties of stripped binary stars
• Towards a Realistic Explosion Landscape for Binary Population Synthesis
• The Science of the Einstein Telescope
• Formation channels of single and binary stellar-mass black holes
• Partial-envelope stripping and nuclear-timescale mass transfer from evolved supergiants at low metallicity
• Convective core entrainment in 1D main sequence stellar models
• Binary-Stripped Stars as Core-Collapse Supernovae Progenitors
• Explosion mechanism of core-collapse supernovae: role of the Si/O interface
• Pre-supernova evolution and final fate of stellar mergers and accretors of binary mass transfer
• Light Elements in the Universe
• The physics of Core-Collapse Supernovae: explosion mechanism and explosive nucleosynthesis
• Nucleosynthesis of binary-stripped stars
• Bimodal black-hole mass distribution and chirp masses of binary black-hole mergers
• Zero and extremely low metallicity rotating massive stars: evolution, explosion, and nucleosynthesis up to the heaviest nuclei
• It's written in the massive stars: The role of stellar physics in the formation of black holes
• The impact of the new measurement of the ${}^{12}\mathrm{C}{+}^{12}\mathrm{C}$ fusion cross section on the final compactness of the massive stars
• Stripped-envelope stars in different metallicity environments. II. Type I supernovae and compact remnants
• Connecting the Light Curves of Type IIP Supernovae to the Properties of their Progenitors
• The magneto-rotational instability in massive stars
• Explodability criteria for the neutrino-driven supernova mechanism
• Monotonicity of the cores of massive stars
• Remnant masses from 1D+ core-collapse supernovae simulations: bimodal neutron star mass distribution and black holes in the low-mass gap
• Explaining the ${}^{12}\text{C}{/}^{13}\text{C}$ ratio in the Galactic halo: the contribution from shell mergers in primordial massive stars
• Compact Objects in close orbits as Gravitational Wave Sources: Formation Scenarios and Properties
• The effects of rotation, metallicity and magnetic field on the islands of failed supernovae
• Supernovae from stellar mergers and accretors of binary mass transfer: Implications for Type IIP, 1987A-like and interacting supernovae
• The fate of rotating massive stars across cosmic times
• Searching for compact objects in the single-lined spectroscopic binaries of the young Galactic cluster NGC 6231
• Abundance Pattern Fitting with Bayesian Inference: Constraining First Stars' Properties and Their Explosion Mechanism with Extremely Metal-poor Stars
• Wolf-Rayet -- compact object binaries as progenitors of binary compact objects
• Evolving massive stars to core collapse with GENEC: Extension of equation of state, opacities and effective nuclear network
• Formation of black holes from He stars
• The Impact of the New ${}^{59}$Fe Decay Rates on ${}^{60}$Fe and ${}^{26}$Al Nucleosynthesis in Massive Stars
• Modeling the outcome of supernova explosions in binary population synthesis using the stellar compactness