Analytic Solutions for Truncated Plasmons

ABSTRACT We present a new plasmon model for a cometary clump moving supersonically in an environment with a non-zero gas pressure. We find that the environmental pressure produces a cutoff in the wings of the cometary clump, therefore resulting in quite \stubby" plasmons for a large range of ow Mach numbers. We derive a relation between the length-to-width ratio of the plasmon and the Mach number M of the ow, which could be used to directly derive M from observations of (appropriate) cometary clumps.

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Bibliographic Details
Main Authors: Cantó,J., Raga,A. C.
Format: Digital revista
Language:English
Published: Universidad Nacional Autónoma de México, Instituto de Astronomía 2021
Online Access:http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0185-11012021000100181
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Summary:ABSTRACT We present a new plasmon model for a cometary clump moving supersonically in an environment with a non-zero gas pressure. We find that the environmental pressure produces a cutoff in the wings of the cometary clump, therefore resulting in quite \stubby" plasmons for a large range of ow Mach numbers. We derive a relation between the length-to-width ratio of the plasmon and the Mach number M of the ow, which could be used to directly derive M from observations of (appropriate) cometary clumps.