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The influence of the velocity dispersion on the velocity-density relation in the disk model of the galaxy

The influence of the velocity dispersion on the ...

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dc.contributor.author Sikora, Szymon [SAP14012983] pl
dc.contributor.author Bratek, Ł. pl
dc.contributor.author Jałocha, J. pl
dc.contributor.author Kutschera, Marek [SAP11116629] pl
dc.date.accessioned 2018-02-15T10:06:14Z
dc.date.available 2018-02-15T10:06:14Z
dc.date.issued 2017 pl
dc.identifier.issn 0587-4254 pl
dc.identifier.uri https://ruj.uj.edu.pl/xmlui/handle/item/50382
dc.language eng pl
dc.rights Dodaję tylko opis bibliograficzny *
dc.rights.uri *
dc.title The influence of the velocity dispersion on the velocity-density relation in the disk model of the galaxy pl
dc.type JournalArticle pl
dc.description.physical 2071-2092 pl
dc.abstract.en Taking the velocity dispersion term into account in the Jeans equation describing the disk model, counterintuitively allows to reduce the local mass-to-light ratio at the outskirts of flattened galaxies, and stop the unbound growth of mass function. This is possible thanks to a more intertwined relation between the gravitational potential and the rotation curve than for spheroidal systems. This effect is illustrated on the example of galaxy UGC 6446 by finding iteratively the column mass density from the rotation curve supplemented with an isotropic velocity dispersion profile in the disk plane. Along with galactic magnetic fields, this effect would allow to reduce the local mass-to-light ratio at the galactic outskirts. pl
dc.description.volume 48 pl
dc.description.number 11 pl
dc.identifier.doi 10.5506/APhysPolB.48.2071 pl
dc.identifier.eissn 1509-5770 pl
dc.title.journal Acta Physica Polonica. B pl
dc.language.container eng pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomiczne pl
dc.subtype Article pl
dc.rights.original CC-BY; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0 pl
.pointsMNiSW [2017 A]: 20


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