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On The Theory of Ring Afterglows
High Energy Astrophysical Phenomena · Submitted 31 Mar 2023
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We compare these to their spherical and jet-like counterparts, and show that ring afterglows decay faster than spherical outflows but not as fast as jets.
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The abstract, sentence by sentence
Synchrotron and inverse Compton emission successfully explain the observed spectra of gamma-ray burst (GRB) afterglows. It is thought that most GRBs are products of extremely relativistic outflows and the afterglow marks the interaction of that ejecta with the surrounding matter. Faster decay of afterglow light curves at late times is indicative of non-spherical geometries, and are usually interpreted as evidence for jet geometry. Recent numerical simulations have shown that ring-like geometries are also permissible for relativistic outflows. We therefore extend the standard theory of afterglow evolution to ring geometries. An analytic prescription for the light curves and spectra produced by relativistic toroidal blast waves is presented. We compare these to their spherical and jet-like counterparts, and show that ring afterglows decay faster than spherical outflows but not as fast as jets.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Synchrotron and inverse Compton emission successfully explain the observed spectra of gamma-ray burst (GRB) afterglows. | background 1.00 | 0.06 | 0.03 | asserted 1.00 |
| s1 | It is thought that most GRBs are products of extremely relativistic outflows and the afterglow marks the interaction of that ejecta with the surrounding matter. | background 1.00 | 0.04 | 0.02 | hedged possibility 0.77 |
| s2 | Faster decay of afterglow light curves at late times is indicative of non-spherical geometries, and are usually interpreted as evidence for jet geometry. | background 0.98 | 0.05 | 0.04 | hedged possibility 0.77 |
| s3 | Recent numerical simulations have shown that ring-like geometries are also permissible for relativistic outflows. | background 0.97 | 0.06 | 0.05 | asserted 0.59 |
| s4 | We therefore extend the standard theory of afterglow evolution to ring geometries. | contribution 0.98 | 0.84 | 0.10 | asserted 0.97 |
| s5 | An analytic prescription for the light curves and spectra produced by relativistic toroidal blast waves is presented. | contribution 0.80 | 0.93 | 0.15 | asserted 1.00 |
| s6 | We compare these to their spherical and jet-like counterparts, and show that ring afterglows decay faster than spherical outflows but not as fast as jets. | result 1.00 | 0.94 | 0.75 | asserted 1.00 |
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The paper
Original abstract
Synchrotron and inverse Compton emission successfully explain the observed spectra of gamma-ray burst (GRB) afterglows. It is thought that most GRBs are products of extremely relativistic outflows and the afterglow marks the interaction of that ejecta with the surrounding matter. Faster decay of afterglow light curves at late times is indicative of non-spherical geometries, and are usually interpreted as evidence for jet geometry. Recent numerical simulations have shown that ring-like geometries are also permissible for relativistic outflows. We therefore extend the standard theory of afterglow evolution to ring geometries. An analytic prescription for the light curves and spectra produced by relativistic toroidal blast waves is presented. We compare these to their spherical and jet-like counterparts, and show that ring afterglows decay faster than spherical outflows but not as fast as jets.
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How the literature uses it
2 arXiv papers cite this in 4 sentences
Papers citing it · 3 sentences without a confident label
Cites it as background 1 paper
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The temporal scaling for the afterglow of a ring-shaped jet has previously been studied in the literature [ref] .
The Very Late Time Afterglow of GW170817 Favors a Wobbling Jet · Introduction · 0.88
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