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Evolution of subsonic shock waves associated with reconnection jets in earth's magnetotail

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Abstract
Motivated by the signatures of nonlinear electrostatic waves observed by the Magnetospheric Multiscale spacecraft mission in reconnection jet regions of Earth's magnetotail, we have explored the dynamical features of ion-acoustic shock waves in the magnetotail. In this investigation, we have examined the dynamics and characteristics of ion-acoustic subsonic shock waves in non-Maxwellian space plasma comprising of two counterstreaming ion beams with suprathermal electrons, assumed to follow a kappa (kappa) distribution. A reductive perturbation technique has been adopted to establish an evolution equation for small amplitude electrostatic shock structures. Importantly, subsonic waves only exist when the beam velocity exceeds a certain threshold, beyond which supersonic and subsonic waves may coexist. The combined effects of the beam velocity and the non-Maxwellian electron statistics have been analyzed to examine the characteristics of subsonic shock waves. Both symmetric and asymmetric (in relative beam density) models have been considered, leading to distinct possibilities in the evolution of subsonic shock waves. The findings of the investigation will help unfold the relatively unexplored dynamical characteristics of subsonic shock waves that may form and propagate in the magnetosphere.
Keywords
ELECTROSTATIC SOLITARY WAVES, WEAK DOUBLE-LAYERS, ION, PLASMA, DISSIPATION, MONOPOLAR, EXISTENCE, SOLITONS, BIPOLAR, REGION

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MLA
Singh, Kuldeep, et al. “Evolution of Subsonic Shock Waves Associated with Reconnection Jets in Earth’s Magnetotail.” ASTROPHYSICAL JOURNAL, vol. 966, no. 2, 2024, doi:10.3847/1538-4357/ad3075.
APA
Singh, K., Verheest, F., & Kourakis, I. (2024). Evolution of subsonic shock waves associated with reconnection jets in earth’s magnetotail. ASTROPHYSICAL JOURNAL, 966(2). https://doi.org/10.3847/1538-4357/ad3075
Chicago author-date
Singh, Kuldeep, Frank Verheest, and Ioannis Kourakis. 2024. “Evolution of Subsonic Shock Waves Associated with Reconnection Jets in Earth’s Magnetotail.” ASTROPHYSICAL JOURNAL 966 (2). https://doi.org/10.3847/1538-4357/ad3075.
Chicago author-date (all authors)
Singh, Kuldeep, Frank Verheest, and Ioannis Kourakis. 2024. “Evolution of Subsonic Shock Waves Associated with Reconnection Jets in Earth’s Magnetotail.” ASTROPHYSICAL JOURNAL 966 (2). doi:10.3847/1538-4357/ad3075.
Vancouver
1.
Singh K, Verheest F, Kourakis I. Evolution of subsonic shock waves associated with reconnection jets in earth’s magnetotail. ASTROPHYSICAL JOURNAL. 2024;966(2).
IEEE
[1]
K. Singh, F. Verheest, and I. Kourakis, “Evolution of subsonic shock waves associated with reconnection jets in earth’s magnetotail,” ASTROPHYSICAL JOURNAL, vol. 966, no. 2, 2024.
@article{01HYWV2SNJC180XF77465R4G94,
  abstract     = {{Motivated by the signatures of nonlinear electrostatic waves observed by the Magnetospheric Multiscale spacecraft mission in reconnection jet regions of Earth's magnetotail, we have explored the dynamical features of ion-acoustic shock waves in the magnetotail. In this investigation, we have examined the dynamics and characteristics of ion-acoustic subsonic shock waves in non-Maxwellian space plasma comprising of two counterstreaming ion beams with suprathermal electrons, assumed to follow a kappa (kappa) distribution. A reductive perturbation technique has been adopted to establish an evolution equation for small amplitude electrostatic shock structures. Importantly, subsonic waves only exist when the beam velocity exceeds a certain threshold, beyond which supersonic and subsonic waves may coexist. The combined effects of the beam velocity and the non-Maxwellian electron statistics have been analyzed to examine the characteristics of subsonic shock waves. Both symmetric and asymmetric (in relative beam density) models have been considered, leading to distinct possibilities in the evolution of subsonic shock waves. The findings of the investigation will help unfold the relatively unexplored dynamical characteristics of subsonic shock waves that may form and propagate in the magnetosphere.}},
  articleno    = {{203}},
  author       = {{Singh, Kuldeep and Verheest, Frank and  Kourakis, Ioannis}},
  issn         = {{0004-637X}},
  journal      = {{ASTROPHYSICAL JOURNAL}},
  keywords     = {{ELECTROSTATIC SOLITARY WAVES,WEAK DOUBLE-LAYERS,ION,PLASMA,DISSIPATION,MONOPOLAR,EXISTENCE,SOLITONS,BIPOLAR,REGION}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{13}},
  title        = {{Evolution of subsonic shock waves associated with reconnection jets in earth's magnetotail}},
  url          = {{http://doi.org/10.3847/1538-4357/ad3075}},
  volume       = {{966}},
  year         = {{2024}},
}

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