Difference between revisions of "Neutral Cosmic Strings"

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{{FRBTableTemplate
 
{{FRBTableTemplate
|Category              = Inviable
+
|Category              = Other
 
|Progenitor            = Neutral Cosmic Strings
 
|Progenitor            = Neutral Cosmic Strings
 
|Type                  = Single
 
|Type                  = Single
|EnergyMechanism        = N/A
+
|EnergyMechanism        = Cusp decay
|EmissionMechanism      = N/A
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|EmissionMechanism      = ---
|LFRadioCounterpart    = N/A
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|LFRadioCounterpart    = Yes
|HFRadioCounterpart    = N/A
+
|HFRadioCounterpart    = ---
|MicrowaveCounterpart  = N/A
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|MicrowaveCounterpart  = ---
|THzCounterpart        = N/A
+
|THzCounterpart        = ---
|OIRCounterpart        = N/A
+
|OIRCounterpart        = ---
|XrayCounterpart        = N/A
+
|XrayCounterpart        = ---
|GammarayCounterpart    = N/A
+
|GammarayCounterpart    = ---
|GWCounterpart          = N/A
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|GWCounterpart          = ---
|NeutrinoCounterpart    = N/A
+
|NeutrinoCounterpart    = ---
 
|References            = http://adsabs.harvard.edu/cgi-bin/bib_query?arXiv:1707.02397
 
|References            = http://adsabs.harvard.edu/cgi-bin/bib_query?arXiv:1707.02397
 
|Comments              = None
 
|Comments              = None
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== Model Description ==
 
== Model Description ==
  
Nambu-Goto (infinitely thin, idealised) cosmic strings generically form cusps-portions of the string which fold back onto themselves and move at the speed of light. The cusps decay to form a beam of coherent radiation, where the emission can ostensibly be of any energy and frequency range. As such, cusp decay has been considered as an FRB origin. The event rate, timescale, and flux are shown to be consistent with FRB data, however the relativistic effects on the cusp shape where not originally considered. By taking this into account, the consistency of the theory breaks down.
+
Nambu-Goto (infinitely thin, idealised) cosmic strings generically form cusps-portions of the string which fold back onto themselves and move at the speed of light. The cusps decay to form a beam of coherent radiation, where the emission can ostensibly be of any energy and frequency range. As such, cusp decay has been considered as an FRB origin. The event rate, timescale, and flux are shown to be consistent with FRB data.
  
 
== Observational Constraints ==
 
== Observational Constraints ==
  
 
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Revision as of 06:05, 31 August 2019





Summary Table
Category Progenitor Type Energy Mechanism Emission Mechanism Counterparts References Brief Comments
LF Radio HF Radio Microwave Terahertz Optical/IR X-rays Gamma-rays Gravitational Waves Neutrinos
Other Neutral Cosmic Strings Single Cusp decay --- Yes --- --- --- --- --- --- --- --- http://adsabs.harvard.edu/cgi-bin/bib_query?arXiv:1707.02397 None

Definitions: LF Radio (3 MHz to 3 GHz); HF Radio (3 GHz to 30 GHz); Microwave (30 to 300 GHz)


Model Description

Nambu-Goto (infinitely thin, idealised) cosmic strings generically form cusps-portions of the string which fold back onto themselves and move at the speed of light. The cusps decay to form a beam of coherent radiation, where the emission can ostensibly be of any energy and frequency range. As such, cusp decay has been considered as an FRB origin. The event rate, timescale, and flux are shown to be consistent with FRB data.

Observational Constraints

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