Cold Molecular Gas as a Possible Component of Dark Matter in the Outer Parts of Disk Galaxies

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dc.creatorAllen, Ronald J.
dc.creatorDiaz-Miller, Rosa
dc.date2004-03-16
dc.date.accessioned2026-07-07T02:12:38Z
dc.date.available2026-07-07T02:12:38Z
dc.descriptionIn the last few years new evidence has been presented for the presence of ongoing massive star formation in the outer HI disks of galaxies. These discoveries strongly suggest that precursor molecular gas must also be present in some physical state which is escaping detection by the usual means (CO(1-0), IR, etc.). We present a model for such a gas in a framework which views the HI as the result of an ongoing ``photodissociation <--> dust grain reformation'' equilibrium in a cold, clumpy molecular medium with a small area filling factor.
dc.description2 pages, Conference paper at IAU Symposium 220, "Dark Matter in Galaxies"
dc.identifierhttps://arxiv.org/abs/astro-ph/0403372
dc.identifierhttp://arxiv.org/abs/astro-ph/0403372
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/7520
dc.subjectAstrophysics
dc.titleCold Molecular Gas as a Possible Component of Dark Matter in the Outer Parts of Disk Galaxies
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