SIMBAD references

2020MNRAS.499.1172Z - Mon. Not. R. Astron. Soc., 499, 1172-1187 (2020/November-3)

A quantitative demonstration that stellar feedback locally regulates galaxy growth.

ZARAGOZA-CARDIEL J., FRITZ J., ARETXAGA I., MAYYA Y.D., ROSA-GONZALEZ D., BECKMAN J.E., BRUZUAL G. and CHARLOT S.

Abstract (from CDS):

We have applied stellar population synthesis to 500-pc-sized regions in a sample of 102 galaxy discs observed with the MUSE spectrograph. We derived the star formation history and analyse specifically the 'recent' (20 Myr) and 'past' (570 Myr) age bins. Using a star formation self-regulator model, we can derive local mass-loading factors, η for specific regions, and find that this factor depends on the local stellar mass surface density, Σ*, in agreement with the predictions form hydrodynamical simulations including supernova feedback. We integrate the local η-Σ* relation using the stellar mass surface density profiles from the Spitzer Survey of Stellar Structure in Galaxies (S4G) to derive global mass-loading factors, ηG, as a function of stellar mass, M*. The ηG-M* relation found is in very good agreement with hydrodynamical cosmological zoom-in galaxy simulations. The method developed here offers a powerful way of testing different implementations of stellar feedback, to check on how realistic are their predictions.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: evolution - galaxies: formation - galaxies: star formation - galaxies: stellar content

Simbad objects: 102

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2021.05.14-19:59:54

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