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Pre-Supernova Outbursts via Wave Heating in Massive Stars I: Red Supergiants
Solar and Stellar Astrophysics · Submitted 27 Apr 2017
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim In our models, wave heating is unlikely to lead to luminous type IIn SNe, but it may contribute to flash-ionized SNe and some of the diversity seen in II-P/II-L SNe.
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Early observations of supernovae (SNe) indicate that enhanced mass loss and pre-SN outbursts may occur in progenitors of many types of SNe. We investigate the role of energy transport via waves driven by vigorous convection during late-stage nuclear burning of otherwise typical $15 \, M_\odot$ red supergiant SNe progenitors. Using MESA stellar evolution models including 1D hydrodynamics, we find that waves carry $\sim \! 10^7 \, L_\odot$ of power from the core to the envelope during core neon/oxygen burning in the final years before core collapse. The waves damp via shocks and radiative diffusion at the base of the hydrogen envelope, which heats up fast enough to launch a pressure wave into the overlying envelope that steepens into a weak shock near the stellar surface, causing a mild stellar outburst and ejecting a small ($\lesssim 1 \, M_\odot$) amount of mass at low speed ($\lesssim \! 50 \, {\rm km}/{\rm s}$) roughly one year before the SN. The wave heating inflates the stellar envelope but does not completely unbind it, producing a non-hydrostatic pre-SN envelope density structure different from prior expectations. In our models, wave heating is unlikely to lead to luminous type IIn SNe, but it may contribute to flash-ionized SNe and some of the diversity seen in II-P/II-L SNe.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Early observations of supernovae (SNe) indicate that enhanced mass loss and pre-SN outbursts may occur in progenitors of many types of SNe. | background 1.00 | 0.04 | 0.03 | hedged possibility 1.00 |
| s1 | We investigate the role of energy transport via waves driven by vigorous convection during late-stage nuclear burning of otherwise typical $15 \, M_\odot$ red supergiant SNe progenitors. | contribution 1.00 | 0.70 | 0.05 | unclear 0.49 |
| s2 | Using MESA stellar evolution models including 1D hydrodynamics, we find that waves carry $\sim \! 10^7 \, L_\odot$ of power from the core to the envelope during core neon/oxygen burning in the final years before core collapse. | result 0.96 | 0.97 | 0.20 | asserted 1.00 |
| s3 | The waves damp via shocks and radiative diffusion at the base of the hydrogen envelope, which heats up fast enough to launch a pressure wave into the overlying envelope that steepens into a weak shock near the stellar surface, causing a mild stellar outburst and ejecting a small ($\lesssim 1 \, M_\odot$) amount of mass at low speed ($\lesssim \! 50 \, {\rm km}/{\rm s}$) roughly one year before the SN. | result 1.00 | 0.91 | 0.52 | asserted 1.00 |
| s4 | The wave heating inflates the stellar envelope but does not completely unbind it, producing a non-hydrostatic pre-SN envelope density structure different from prior expectations. | result 0.91 | 0.90 | 0.23 | asserted 1.00 |
| s5 | In our models, wave heating is unlikely to lead to luminous type IIn SNe, but it may contribute to flash-ionized SNe and some of the diversity seen in II-P/II-L SNe. | interpretation 0.99 | 0.81 | 0.27 | hedged possibility 1.00 |
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Original abstract
Early observations of supernovae (SNe) indicate that enhanced mass loss and pre-SN outbursts may occur in progenitors of many types of SNe. We investigate the role of energy transport via waves driven by vigorous convection during late-stage nuclear burning of otherwise typical $15 \, M_\odot$ red supergiant SNe progenitors. Using MESA stellar evolution models including 1D hydrodynamics, we find that waves carry $\sim \! 10^7 \, L_\odot$ of power from the core to the envelope during core neon/oxygen burning in the final years before core collapse. The waves damp via shocks and radiative diffusion at the base of the hydrogen envelope, which heats up fast enough to launch a pressure wave into the overlying envelope that steepens into a weak shock near the stellar surface, causing a mild stellar outburst and ejecting a small ($\lesssim 1 \, M_\odot$) amount of mass at low speed ($\lesssim \! 50 \, {\rm km}/{\rm s}$) roughly one year before the SN. The wave heating inflates the stellar envelope but does not completely unbind it, producing a non-hydrostatic pre-SN envelope density structure different from prior expectations. In our models, wave heating is unlikely to lead to luminous type IIn SNe, but it may contribute to flash-ionized SNe and some of the diversity seen in II-P/II-L SNe.
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References
How later papers used it
113 later papers cite it
1 paper by the same authors is listed below: 1 used its method or tool.
Uses its method or tool 1 of 5 papers with this label · 1 by the same authors
By the same authors
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Used this paper's thermal diffusivity in its expressions for the expected damping mass by shock heating and radiative diffusion.
Fast Blue Optical Transients due to Circumstellar Interaction and the Mysterious Supernova SN 2018gep (2021) (same authors) · 0.93 · paraphrased: the licence does not allow quoting
How the literature uses it
11 arXiv papers cite this in 12 sentences
Papers citing it · 9 sentences without a confident label
Cites it as background 3 papers
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From the perspective of a single-stellar evolution, several processes have been proposed, including wave-driven mass loss triggered by super-Eddington core luminosities [ref] , pulsations of red supergiant SN progenitors [ref] , and unstable silicon burning leading to violent flashes in the stellar core [ref] .
Diversity of stripped-envelope supernova light curves from interaction with binary-driven circumstellar material · Introduction · 0.93
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Such systems are relatively rare, and a range of theoretical models have been proposed to explain the phenomenon (e.g., [ref] , [ref] , [ref] , [ref] , [ref] ).
The Physics of Flash (Supernova) Spectroscopy · Introduction · 1.00
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There are also (sometimes overlapping) scenarios that have been discussed, involving binary mergers, stellar collisions, violent common envelope events, accretion events onto a companion (perhaps including compact object companions, although this has not been discussed much for $η$ Car), violent pulsations, extreme magnetic activity, pulsational pair instability eruptions, unsteady or explosive nuclear burning, and wave driving associated with late nuclear burning phases approaching core collapse [ref] .
Exceptionally fast ejecta seen in light echoes of Eta Carinae's Great Eruption · INTRODUCTION · 0.99
What it cites · 10 sentences without a confident label
Compares with 1 paper
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Our optimistic wave efficiency produces CSM masses and density profiles similar to those inferred by [ref] , although our nominal wave efficiency does not appear to eject mass in a wind-like density profile due to mass fallback.
Unifying Type II Supernova Light Curves with Dense Circumstellar Material · Implications for Subsequent Supernovae · 0.87
Cites as support 2 papers
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The wave-induced mass ejection events could substantially alter early SN spectra, and are a very compelling mechanism to produce the growing class of flash-ionized Type II-P/L SNe [ref] which show recombination lines from CSM at early times.
Confined Dense Circumstellar Material Surrounding a Regular Type II Supernova: The Unique Flash-Spectroscopy Event of SN 2013fs · Implications for Subsequent Supernovae · 0.98
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The dense wind can also create early peaks in type IIP [ref] , and can cause the SNe to appear more IIL-like [ref] .
Unifying Type II Supernova Light Curves with Dense Circumstellar Material · Implications for Subsequent Supernovae · 0.97
Cites as background 1 paper
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In a series of papers [ref] , Meakin, Arnett, and collaborators have investigated the properties of convection during late phase (carbon shell burning and beyond) nuclear burning.
3D Hydrodynamic Simulations of Carbon Burning in Massive Stars · Relation to other Theories of Pre-SN Outbursts · 0.99
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