Balmer-Dominated Shocks Exclude Hot Progenitors for Many Type Ia Supernovae

Abstract

The evolutionary mechanism underlying Type Ia supernova explosions remains unknown. Recent efforts to constrain progenitor models based on the influence that their high energy emission would have on the interstellar medium (ISM) of galaxies have proven successful. For individual remnants, Balmer-dominated shocks reveal the ionization state of hydrogen in the immediately surrounding gas. Here we report deep upper limits on the temperature and luminosity of the progenitors of four Type Ia remnants with associated Balmer filaments: SN 1006, 0509-67.5, 0519-69.0, and DEM L71. For SN 1006, existing observations of helium line emission in the diffuse emission ahead of the shock provide an additional constraint on the helium ionization state in the vicinity of the remnant. Using the photoionization code Cloudy, we show that these constraints exclude any hot, luminous progenitor for SN 1006, including stably hydrogen or helium nuclear-burning white dwarfs, as well as any Chandrasekhar-mass white dwarf accreting matter at $\gtrsim 9.5\times 10^{-8}{M}_{\odot }/$yr via a disk. For 0509-67.5, the Balmer emission alone rules out any such white dwarf accreting $\gtrsim 1.4\times 10^{-8}{M}_{\odot }/$yr. For 0519-69.0 and DEM L71, the inferred ambient ionization state of hydrogen is only weakly in tension with a recently hot, luminous progenitor, and cannot be distinguished from e.g., a relatively higher local Lyman continuum background, without additional line measurements. Future deep spectroscopic observations will resolve this ambiguity, and can either detect the influence of any luminous progenitor or rule out the same for all resolved SN Ia remnants.

9 pages, 3 figures, 1 table. Accepted for publication in ApJ

References in corpus (15)

• Radiative recombination data for modelling dynamic finite-density plasmas
• Discriminating the Progenitor Type of Supernova Remnants with Iron K-Shell Emission
• Unstable Helium Shell Burning on Accreting White Dwarfs
• Mass-accreting white dwarfs and type Ia supernovae
• No X-rays from the very nearby Type Ia SN2014J: constraints on its environment
• He-Accreting WDs: accretion regimes and final outcomes
• Constraints on the Progenitor System of the Type Ia Supernova 2014J from Pre-Explosion Hubble Space Telescope Imaging
• Wait for it: Post-supernova winds driven by delayed radioactive decays
• Progenitor constraints on the Type-Ia supernova SN2011fe from pre-explosion Hubble Space Telescope HeII narrow-band observations
• A Search for a Surviving White Dwarf Companion in SN 1006
• Diffuse Gas in Retired Galaxies: Nebular Emission Templates and Constraints on the Sources of Ionization
• Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a? - Hubble Space Telescope Photometry of the 2015 Eruption
• No hot and luminous progenitor for Tycho's supernova
• The Impact of Progenitor Mass Loss on the Dynamical and Spectral Evolution of Supernova Remnants
• Parametric studies of cosmic ray acceleration in supernova remnants

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