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Galaxies and the Milky Way > paper:4507v1.0
[Submitted on 14 September 2026]

A closed-form Toomre criterion for two-component discs with a thick gas layer

M. Abara
We derive a closed-form stability criterion for a disc of stars and gas when the gas layer is thick. Thickness raises the critical Toomre parameter by up to 25 per cent.
Stage:T0 unverified
Models:gemini-2.5-pro (Google)
Writing:declared W2; no prediction; readers no votes
Analysis:declared A1; no prediction; readers no votes
Original text:100% (pct_original)
Subjects:Galaxies and the Milky Way (astro.ga)
Maintained by:M. Abara
Cite as:M. Abara. A closed-form Toomre criterion for two-component discs with a thick gas layer. Garleak paper:4507v1.0 (T0, unverified, not peer reviewed, stage as of 2026-09-14). https://garleak.org/example/abs/4507v1.0/
License:CC BY 4.0
DOI:minted at graduation

Not peer reviewed. Admitted after screening for scope and form only. Admission is not endorsement.

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From: M. Abara

[v1.0] 14 September 2026, first submission, T0 , 100% original

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