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Angular momentum, accretion, and radial flows in chemodynamical models of spiral galaxies

Pezzulli, G. & Fraternali, F., 2016, In : Astronomische Nachrichten. 337, p. 913-916 4 p.

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  • Angular momentum, accretion, and radial flows in chemodynamical

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Gas accretion and radial flows are key ingredients of the chemical evolution of spiral galaxies. They are also tightly linked to each other (accretion drives radial flows due to angular momentum conservation) and should therefore be modeled simultaneously. We summarize an algorithm that can be used to consistently compute accretion profiles, radial flows, and abundance gradients under quite general conditions, and we describe illustrative applications to the Milky Way. We find that gas-phase abundance gradients strongly depend on the angular momentum of the accreting material and, in the outer regions, they are significantly affected by the choice of boundary conditions.
Original languageEnglish
Pages (from-to)913-916
Number of pages4
JournalAstronomische Nachrichten
Volume337
Publication statusPublished - 2016

    Keywords

  • accretion, accretion disks, Galaxy: abundances, galaxies: abundances, galaxies: evolution, galaxies: ISM, intergalactic medium

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