On the Minimum Energy Configuration of a Rotating Barotropic Fluid

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dc.creatorNarayan, Ramesh
dc.creatorPringle, James E.
dc.date2002-08-07
dc.date.accessioned2026-07-07T02:04:37Z
dc.date.available2026-07-07T02:04:37Z
dc.descriptionIn a recent paper (astro-ph/0207561, posted on July 25, 2002), Fromang & Balbus state that ``a uniformly rotating barotropic fluid in an external potential attains a true energy minimum if and only if the rotation profile is everywhere subsonic. If regions of supersonic rotation are present, fluid variations exist that could take the system to states of lower energy.'' We present a simple counter-example which demonstrates that the stablity criterion presented by Fromang & Balbus is incorrect.
dc.description4 pages; not submitted to any journal
dc.identifierhttps://arxiv.org/abs/astro-ph/0208161
dc.identifierhttp://arxiv.org/abs/astro-ph/0208161
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/4825
dc.subjectAstrophysics
dc.titleOn the Minimum Energy Configuration of a Rotating Barotropic Fluid
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