Reply to comment on “Detection of small comets with a ground‐based telescope” by L. A. Frank and J. B. Sigwarth

Frank, L. A.; Sigwarth, J. B.

doi:10.1029/2002ja009469

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…Hunana et al [23] have presented a detailed review of CGL fluid description in collisionless plasmas and shown the importance of heatflux vectors in astrophysical plasmas. Wang and Hau [24] found that in a homogeneous anisotropic plasma, MHD shear Alfvén wave may turn into unstable firehose instability by affecting the nature of the pure MHD waves. It is reported that the CGL fluid model describes the growth rate of firehose instability very accurately at sufficiently long spatial scales [25].…”

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Firehose instability in heat-conducting solar wind plasmas including FLR corrections and electrical resistivity

Prajapati

2024

EPL

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The effects of finite Larmor radius (FLR) corrections and heat-flux vector are studied on the pressure anisotropy-driven firehose instability in finitely conducting solar wind plasmas described by the double-adiabatic Chew, Goldberger and Low (CGL) fluid theory. The fluid description of collisionless plasmas is governed through modified adiabatic equations due to the heat-flux vector and finite ion Larmor radius corrections. The analytical dispersion relation of the firehose instability has been derived using the normal mode analysis and discussed in the solar wind plasmas. In the transverse mode, the dispersion relation of Alfv´enic mode is modified due to electrical resistivity and FLR corrections. In the longitudinal mode, the effects of the heat-flux parameter and electrical resistivity are observed separately. The dispersion relation of the firehose mode is modified due to the combined effects of FLR corrections and electrical resistivity. The graphical illustrations show that finite electrical resistivity and ion Larmor frequency destabilize the growth rate of the firehose instability. The results are useful for analyzing the solar mission data to study the firehose instability in the solar wind plasmas.

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confidence: 99%