Sep 9 – 13, 2019
Rome
UTC timezone

Dust production scenarios in galaxies at z ~ 6–8.3 (Aleksandra Leśniewska)

Sep 12, 2019, 5:20 PM
18m
Rome

Rome

Accademia dei Lincei c/o Villa Farnesina Via della Lungara 10/230 00165 Roma
Talk Gas and dust in galaxies

Description

Dust production is a very important issue in galaxy evolution. Unfortunately, we are still unable to determine its formation mechanism. I will present the investigation of dust production in nine galaxies at redshift z > 6, for which dust emission has been detected. In recent years, more accurate measurements were made using the most powerful instruments, eg ALMA, which contributed to better estimates of luminosities and sizes, and thus to determine the masses of gas, dust and stars in the studied galaxies. We conclude that asymptotic giant branch (AGB) stars did not contribute to the dust formation significantly in these Early Universe galaxies, and that supernovae are unlikely to produce the bulk of the dust mass. I will discuss how the advent of future large telescopes will contribute to this topic.

Primary author

Ms Aleksandra Leśniewska (Adam Mickiewicz University in Poznań)

Co-author

Dr Michał Michałowski (Adam Mickiewicz University in Poznań)

Presentation materials

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