Double Detonations with Thin, Modestly Enriched Helium Layers Can Make Normal Type Ia Supernovae

Abstract

It has been proposed that Type Ia supernovae (SNe Ia) that are normal in their spectra and brightness can be explained by a double detonation that ignites first in a helium shell on the surface of the white dwarf (WD). This proposition is supported by the satisfactory match between simulated explosions of sub-Chandrasekhar-mass WDs with no surface He layer and observations of normal SNe Ia. However, previous calculations of He-ignited double detonations have required either artificial removal of the He shell ashes or extreme enrichment of the surface He layer in order to obtain normal SNe Ia. Here we demonstrate, for the first time in multi-dimensional full-star simulations, that a thin, modestly enriched He layer will lead to a SN Ia that is normal in its brightness and spectra. This strengthens the case for double detonations as a major contributing channel to the population of normal SNe Ia.

11 pages, 4 figures, updated to version published in ApJ letters

References in corpus (35)

• The chemical composition of the Sun
• Modules for Experiments in Stellar Astrophysics (MESA)
• Modules for Experiments in Stellar Astrophysics (MESA): Giant Planets, Oscillations, Rotation, and Massive Stars
• Modules for Experiments in Stellar Astrophysics (MESA): Binaries, Pulsations, and Explosions
• Modules for Experiments in Stellar Astrophysics (MESA): Convective Boundaries, Element Diffusion, and Massive Star Explosions
• Explosion Models for Type Ia Supernovae: A Comparison with Observed Light Curves, distances, H_o and q_o
• Double-detonation sub-Chandrasekhar supernovae: can minimum helium shell masses detonate the core?
• Detonations in Sub-Chandrasekhar Mass C+O White Dwarfs
• Time Dependent Monte Carlo Radiative Transfer Calculations For 3-Dimensional Supernova Spectra, Lightcurves, and Polarization
• Sub-Chandrasekhar Mass Models For Type Ia Supernovae
• Extensible Component Based Architecture for FLASH, A Massively Parallel, Multiphysics Simulation Code
• Comparative Direct Analysis of Type Ia Supernova Spectra. II. Maximum Light
• Double-detonation sub-Chandrasekhar supernovae: synthetic observables for minimum helium shell mass models
• Head-on collisions of white dwarfs in triple systems could explain type Ia supernova
• Sub-Chandrasekhar-mass white dwarf detonations revisited
• Double-detonation supernovae of sub-Chandrasekhar mass white dwarfs
• Three Hypervelocity White Dwarfs in Gaia DR2: Evidence for Dynamically Driven Double-Degenerate Double-Detonation Type Ia Supernovae
• Surface Detonations in Double Degenerate Binary Systems Triggered by Accretion Stream Instabilities
• Synthetic Spectra of Hydrodynamic Models of Type Ia Supernovae
• Observational Predictions for Sub-Chandrasekhar Mass Explosions: Further Evidence for Multiple Progenitor Systems for Type Ia Supernovae
• Hubble Space Telescope spectra of the type Ia supernova SN2011fe: a tail of low-density, high-velocity material with Z<Zsolar
• The Ignition of Carbon Detonations via Converging Shock Waves in White Dwarfs
• The Initiation and Propagation of Helium Detonations in White Dwarf Envelopes
• A hybrid type Ia supernova with an early flash triggered by helium-shell detonation
• Constraints on the explosion mechanism and progenitors of type Ia supernovae
• Evidence for sub-Chandrasekhar-mass progenitors of Type Ia supernovae at the faint end of the width-luminosity relation
• ZTF 18aaqeasu (SN 2018byg): A Massive Helium-shell Double Detonation on a Sub-Chandrasekhar Mass White Dwarf
• Nucleosynthesis in thermonuclear supernovae
• Evaluating Systematic Dependencies of Type Ia Supernovae: The Influence of Progenitor Ne22 Content on Dynamics
• A review of type Ia supernova spectra
• Laterally Propagating Detonations in Thin Helium Layers on Accreting White Dwarfs
• The Effects of Curvature and Expansion on Helium Detonations on White Dwarf Surfaces
• Models for Type Ia supernovae and related astrophysical transients
• Numerical Stability of Detonations in White Dwarf Simulations
• Quantifying How Density Gradients and Front Curvature Affect Carbon Detonation Strength During Type Ia Supernovae

Cited by in corpus (65)

• Type Ia Supernova Explosions in Binary Systems: A Review
• Double detonations of sub-Chandrasekhar mass CO white dwarfs: Can different core and He shell masses explain variations of Type Ia supernovae?
• On the fate of the secondary white dwarf in double-degenerate double-detonation Type Ia supernovae
• Supernovae Ia in 2019 (review): a rising demand for spherical explosions
• ZTF Early Observations of Type Ia Supernovae II: First Light, the Initial Rise, and Time to Reach Maximum Brightness
• Non-Local Thermodynamic Equilibrium Radiative Transfer Simulations of Sub-Chandrasekhar-Mass White Dwarf Detonations
• SNe Ia from double detonations: Impact of core-shell mixing on the carbon ignition mechanism
• Multi-Dimensional Parameter Study of Double Detonation Type Ia Supernovae Originating from Thin-Helium-Shell White Dwarfs
• Evidence for Sub-Chandrasekhar Type Ia Supernovae from Stellar Abundances in Dwarf Galaxies
• Multi-Dimensional Radiative Transfer Calculations of Double Detonations of Sub-Chandrasekhar-Mass White Dwarfs
• Remnants of Subdwarf Helium Donor Stars Ejected from Close Binaries with Thermonuclear Supernovae
• Nucleosynthesis imprints from different Type Ia Supernova explosion scenarios and implications for galactic chemical evolution
• Binary Stars in the New Millennium
• Determining the ${}^{56}$Ni distribution of type Ia supernovae from observations within days of explosion
• Nebular Models of Sub-Chandrasekhar Mass Type Ia Supernovae: Clues to the Origin of Ca-rich Transients
• The Spectacular Ultraviolet Flash From the Peculiar Type Ia Supernova 2019yvq
• Metallicity-dependent nucleosynthetic yields of Type Ia supernovae originating from double detonations of sub-M${}_{\text{Ch}}$ white dwarfs
• Strong Calcium Emission Indicates that the Ultraviolet-Flashing Type Ia SN 2019yvq was the Result of a Sub-Chandrasekhar Mass Double-Detonation Explosion
• The Progenitors of Calcium-Strong Transients
• Ca hnk: Calcium-rich Transient SN 2016hnk from the Helium Shell Detonation of a Sub-Chandrasekhar White Dwarf
• Evidence for sub-Chandrasekhar Type Ia supernovae from the last major merger
• Stable nickel production in Type Ia supernovae: A smoking gun for the progenitor mass?
• Infant-phase reddening by surface Fe-peak elements in a normal Type Ia Supernova
• Double detonations: variations in Type Ia supernovae due to different core and He shell masses -- II: synthetic observables
• Binary evolution along the Red Giant Branch with BINSTAR: The barium star perspective
• Measuring an off-Center Detonation through Infrared Line Profiles: The peculiar Type Ia Supernova SN~2020qxp/ASASSN-20jq
• Masses of White Dwarf Binary Companions to Type Ia Supernovae Measured from Runaway Velocities
• Exploring the diversity of double detonation explosions for type Ia supernovae: Effects of the post-explosion helium shell composition
• Can Helium-detonation Model Explain the Observed Diversity of Type Ia Supernovae?
• SN2019yvq Does Not Conform to SN Ia Explosion Models
• Nebular spectra from Type Ia supernova explosion models compared to JWST observations of SN 2021aefx
• Sub-Chandrasekhar-mass detonations are in tension with the observed $t_0-M_{\text{Ni56}}$ relation of type Ia supernovae
• The origin and evolution of the normal Type Ia SN 2018aoz with infant-phase reddening and excess emission
• 3D Hydrodynamical Simulations of Helium-Ignited Double-degenerate White Dwarf Mergers
• Population synthesis of accreting white dwarfs: Rates and evolutionary pathways of H and He novae
• Physics of Thermonuclear Explosions: Magnetic Field Effects on Deflagration Fronts and Observable Consequences
• The Whisper of a Whimper of a Bang: 2400 Days of the Type Ia SN 2011fe Reveals the Decay of ${}^{55}$Fe
• SN 2016dsg: A Thermonuclear Explosion Involving A Thick Helium Shell
• Delayed Detonation Thermonuclear Supernovae With An Extended Dark Matter Component
• Dynamical He Flashes in Double White Dwarf Binaries
• Helium as a signature of the double detonation in Type Ia supernovae
• Origin of high-velocity ejecta and early red excess emission in the infant Type Ia supernova 2021aefx
• Rapidly-Declining Hostless Type Ia Supernova KSP-OT-201509b from the KMTNet Supernova Program: Transitional Nature and Constraint on ${}^{56}$Ni Distribution and Progenitor Type
• Signatures of a surviving helium-star companion in Type Ia supernovae and constraints on the progenitor companion of SN 2011fe
• The detection efficiency of type Ia supernovae from the Zwicky Transient Facility: Limits on the intrinsic rate of early flux excesses
• Distribution of Si II $\lambda$6355 Velocities of Type Ia Supernovae and Implications for Asymmetric Explosions
• Spatially Resolved X-ray Study of Supernova Remnant G306.3$-$0.9 with Unusually High Calcium Abundance
• Type Ia Supernova Progenitor Properties and Their Host Galaxies
• Type Ia Supernova Explosions from Hybrid Carbon-Oxygen-Neon White Dwarf Progenitors That Have Mixed During Cooling
• The effect of aspherical stellar wind of giant stars on the symbiotic channel of type Ia supernovae
• Polarization signatures of the head-on collision model for Type Ia supernovae: How much asymmetry is too much?
• SN 2019ein: A Type Ia Supernova Likely Originated from a Sub-Chandrasekhar-Mass Explosion
• SN 2022joj: A Peculiar Type Ia Supernova Possibly Driven by an Asymmetric Helium-shell Double Detonation
• One-Dimensional Numerical Study on Ignition of the Helium Envelope in Dynamical Accretion during the Double-Degenerate Merger
• The Impact of Resolution on Double-Detonation Models for Type Ia Supernovae
• Deep Neural Networks for Modeling Astrophysical Nuclear Reacting Flows
• An asymmetric explosion mechanism may explain the diversity of Si II line widths in Type Ia supernovae
• Exploring the range of impacts of helium in the spectra of double detonation models for Type Ia supernovae
• Evolution of binaries containing a hot subdwarf and a white dwarf to double white dwarfs, and double detonation supernovae with hypervelocity runaway stars
• Confronting double-detonation sub-Chandrasekhar models with the low-luminosity suppression of Type Ia supernovae
• Local two-dimensional simulations of the ignition of a helium shell detonation on a white dwarf by an impacting stream
• Off-centre ignition of sub-Chandrasekhar white dwarfs does not resolve the tension with the observed $t_0$-$M_{\mathrm{Ni}56}$ relation of type Ia supernovae
• Do not forget the electrons: Extending moderately-sized nuclear networks for multidimensional hydrodynamic codes
• The asymmetry of white dwarf double detonations and the observed scatter around the Phillips relation
• Observational signatures of the surviving donor star in the double detonation model of Type Ia supernovae