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Gas accretion from minor mergers in local spiral galaxies

Di Teodoro, Enrico; Fraternali, F


We quantify the gas accretion rate from minor mergers onto star-forming galaxies in the local Universe using Hi observations of 148 nearby spiral galaxies (WHISP sample). We developed a dedicated code that iteratively analyses Hi data-cubes, finds dwarf gas-rich satellites around larger galaxies, and estimates an upper limit to the gas accretion rate. We found that 22% of the galaxies have at least one detected dwarf companion. We made the very stringent assumption that all satellites are going...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201423596
Access Rights: Open Access


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