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Magnetar Outbursts from Avalanches of Hall Waves and Crustal Failures
High Energy Astrophysical Phenomena · Submitted 15 Jun 2016
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We argue that these avalanches are the likely sources of outbursts in transient magnetars.
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The abstract, sentence by sentence
We explore the interaction between Hall waves and mechanical failures inside a magnetar crust, using detailed one-dimentional models that consider temperature-sensitive plastic flow, heat transport and cooling by neutrino emission, as well as the coupling of the crustal motion to the magnetosphere. We find that the dynamics is enriched and accelerated by the fast, short-wavelength Hall waves that are emitted by each failure. The waves propagate and cause failures elsewhere, triggering avalanches. We argue that these avalanches are the likely sources of outbursts in transient magnetars.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We explore the interaction between Hall waves and mechanical failures inside a magnetar crust, using detailed one-dimentional models that consider temperature-sensitive plastic flow, heat transport and cooling by neutrino emission, as well as the coupling of the crustal motion to the magnetosphere. | method 0.85 | 0.91 | 0.03 | asserted 0.68 |
| s1 | We find that the dynamics is enriched and accelerated by the fast, short-wavelength Hall waves that are emitted by each failure. | result 1.00 | 0.95 | 0.09 | asserted 1.00 |
| s2 | The waves propagate and cause failures elsewhere, triggering avalanches. | result 0.97 | 0.69 | 0.10 | asserted 1.00 |
| s3 | We argue that these avalanches are the likely sources of outbursts in transient magnetars. | interpretation 1.00 | 0.66 | 0.90 | hedged possibility 1.00 |
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The paper
Original abstract
We explore the interaction between Hall waves and mechanical failures inside a magnetar crust, using detailed one-dimentional models that consider temperature-sensitive plastic flow, heat transport and cooling by neutrino emission, as well as the coupling of the crustal motion to the magnetosphere. We find that the dynamics is enriched and accelerated by the fast, short-wavelength Hall waves that are emitted by each failure. The waves propagate and cause failures elsewhere, triggering avalanches. We argue that these avalanches are the likely sources of outbursts in transient magnetars.
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References
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10 arXiv papers cite this in 17 sentences
Papers citing it · 13 sentences without a confident label
Compares with it 2 papers
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For example, the initial magnetic field in the magnetar core necessary to induce a short wavelength Hall wave, which then can trigger TPW, was found in Ref. [ref] to have $∼10 m$ length scale, which is only one order of magnitude bigger than $Λ_max$ used in Sec. [ref] to simulate a giant flare; cf. Fig. [ref].
Magnetic fields in turbulent quark matter and magnetar bursts · Application for the description of bursts of magnetars · 0.91
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For comparison, the thermal-magnetic front process proposed by [ref] and [ref] operates on an intermediate timescale.
Global Crustal Dynamics of Magnetars in Relation to their Bright X-ray Outbursts · Overview of Results · 1.00
Cites it as support 1 paper
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It is likely that a more realistic picture is that of plastic deformations: the crust becomes overstrained and undergoes a permanent but not immutable deformation [ref] .
Premerger phenomena in neutron-star binary coalescences · Breaking strain · 0.97
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This is in agreement with the behavior seen in [ref] , see [ref] for a discussion of the surface heating efficiency.
Magnetar heating · Results · 0.91
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