Camps Fariña, ArtemiSánchez Blázquez, PatriciaRoca Fábrega, SantiSánchez-Fortún Rodríguez, Sebastián2024-04-082024-04-082023-06-09Camps-Fariña, A. et al. (2021) ‘Variable metallicity yields as tracers of inflows’, Proceedings of the International Astronomical Union, 17(S373), pp. 246–248. doi:10.1017/S1743921322003982.1743-921310.1017/S1743921322003982https://hdl.handle.net/20.500.14352/1028182023 Acuerdos transformativos CRUEPristine gas accretion is expected to be the main driver of sustained star formation in galaxies. We measure the required amount of accreted gas at each moment over a galaxy’s history to produce the observed metallicity at that time given its star-forming history. More massive galaxies tend to have higher accretion rates and a larger drop of the accretion rate towards the present time. Within the same mass bin galaxies that are currently star-forming or in the Green Valley have similar, sustained, accretion histories while retired galaxies had a steep decline in the past. Plotting the T80 of the individual accretion histories, a measure of how sustained they are, versus the stellar mass and current sSFR we see a distribution such that currently star-forming galaxies have sustained or recent accretion and retired galaxies have declined accretion histories.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/journal article1743-9221https://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/article/variable-metallicity-yields-as-tracers-of-inflows/17265C3C97C974440F7BA1EBB0EE35ABopen access52-33Galaxies: abundancesGalaxies: evolutionTechniques: spectroscopicAstrofísica21 Astronomía y Astrofísica