2016/08/16 by Gabriele Pezzulli, Filippo Fraternali · 4 citations
Environmental Science · Physics and Astronomy · #Accretion (finance) #Accretion disc #Angular momentum #Astrophysics #Astrophysics and Star Formation Studies #Classical mechanics #Galaxies: Formation, Evolution, Phenomena #Galaxy #Milky Way #Physics #Plant Water Relations and Carbon Dynamics #Spiral galaxy #astro-ph.GA
paper · pdf · open access · doi:10.1002/asna.201612397
published in Astronomische Nachrichten 337(8-9), 913-916 (Wiley) · 4 pages, 2 figures. Proceedings of the 592 WE-Heraeus Seminar. To appear in Astronomische Nachricthen, special issue "Reconstructing the Milky Way's history: spectroscopic surveys, asteroseismology and chemodynamical models", Guest Editors C. Chiappini, J. Montalban and M. Steffen
arxiv created 2016/08/16 · openalex publication_date 2016/09/01 · openalex created_date 2016/09/16 · arxiv updated 2016/10/19 · openalex updated_date 2026/08/05
Abstract 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.