Spectra and Light Curves of Failed Supernovae

Abstract

Astronomers have proposed a number of mechanisms to produce supernova explosions. Although many of these mechanisms are now not considered primary engines behind supernovae, they do produce transients that will be observed by upcoming ground-based surveys and NASA satellites. Here we present the first radiation-hydrodynamics calculations of the spectra and light curves from three of these "failed" supernovae: supernovae with considerable fallback, accretion induced collapse of white dwarfs, and energetic helium flashes (also known as type .Ia supernovae).

33 pages, 14 figures

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• Faint Thermonuclear Supernovae from AM Canum Venaticorum Binaries
• The RAGE radiation-hydrodynamic code
• The Supernova Channel of Super-AGB Stars
• Unstable Helium Shell Burning on Accreting White Dwarfs
• Models for the Type Ic Hypernova SN 2003lw associated with GRB 031203
• Magnetically-driven explosions of rapidly-rotating white dwarfs following Accretion-Induced Collapse
• Stochastic Nature of Gravitational Waves from Supernova Explosions with Standing Accretion Shock Instability
• Neutrinos from Fallback onto Newly Formed Neutron Stars
• Explosive Nucleosynthesis from GRB and Hypernova Progenitors: Direct Collapse versus Fallback
• Light Curve Calculations of Supernovae from Fallback Gamma-Ray Bursts

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• Delay Times and Rates for Type Ia Supernovae and Thermonuclear Explosions from Double-detonation Sub-Chandrasekhar Mass Models
• Rapidly Decaying Supernova 2010X: A Candidate ".Ia" Explosion
• Fallback Supernovae: A Possible Origin of Peculiar Supernovae with Extremely Low Explosion Energies
• The 12C + 12C reaction and the impact on nucleosynthesis in massive stars
• Effects of Fall-Back Accretion on Proto-Magnetar Outflows in Gamma-Ray Bursts and Superluminous Supernovae
• The Fast and Furious Decay of the Peculiar Type Ic Supernova 2005ek
• Newly-born pulsars as sources of ultrahigh energy cosmic rays
• Spectra of Type Ia Supernovae from Double Degenerate Mergers
• Slow-Speed Supernovae from the Palomar Transient Factory: Two Channels
• SN 2013dx associated with GRB 130702A: a detailed photometric and spectroscopic monitoring and a study of the environment
• PESSTO monitoring of SN 2012hn: further heterogeneity among faint type I supernovae
• Rapidly Fading Supernovae from Massive Star Explosions
• The Unusual Temporal and Spectral Evolution of the Type IIn Supernova 2011ht
• The progenitors of calcium-rich transients are not formed in situ
• Revealing Type Ia supernova physics with cosmic rates and nuclear gamma rays
• Finding the First Cosmic Explosions II: Core-Collapse Supernovae
• The Transient Gravitational-Wave Sky
• Synoptic Sky Surveys and the Diffuse Supernova Neutrino Background: Removing Astrophysical Uncertainties and Revealing Invisible Supernovae
• Gravitational Waves from Fallback Accretion onto Neutron Stars
• Shock-heating of stellar envelopes: A possible common mechanism at the origin of explosions and eruptions in massive stars
• The Los Alamos Supernova Light Curve Project: Computational Methods
• Pair-Instability Supernovae in the Local Universe
• The Formation of Rapidly Rotating Black Holes in High Mass X-ray Binaries
• Neutrinos from failed supernovae at future water and liquid argon detectors
• Population III Hypernovae
• Understanding the Engines and Progenitors of Gamma-Ray Bursts
• OGLE-2014-SN-073 as a fallback accretion powered supernova
• The Role of Inhomogeneities in Supernova Shock Breakout Emission
• On the maximum stellar rotation to form a black hole without an accompanying luminous transient
• The Effects on Supernova Shock Breakout and Swift Light Curves Due to the Mass of the Hydrogen-Rich Envelope
• Constraining Type Iax Supernova Progenitor Systems with Stellar Population Aging
• The Signature of Single-Degenerate Accretion Induced Collapse
• DES16C3cje: A low-luminosity, long-lived supernova
• Light Curves and Spectra from a Unimodal Core-Collapse SuperNova
• The Population of Helium-Merger Progenitors: Observational Predictions