Dust in the Wake of Supernovae: Reverse Shocks, Starbursts, and Blue Monsters at z > 10

Authors
Dr.
Sergio Martínez González
Date and time
16 Apr 2026 - 10:30 Europe/London
Address

Aula

Talk language
English
Slides language
English
Serie number
1
Description

Supernovae are usually cast as efficient dust destroyers. I will show that, when realistic environments are taken into account, they instead emerge as net dust enrichers. Combining 3-D hydrodynamic simulations with semi-analytic cooling and cloud-crushing calculations, I follow dust processing from ejecta and wind-blown bubbles to dense circumstellar shells, dusty clumps, and sequential supernovae in compact star clusters. Across these environments, rapid radiative cooling often limits dust destruction, and in dense shocked clumps can even open a path to further growth. The result is a consistent picture in which supernovae inject and build up dust in remnants, superbubbles, and star-forming clouds. On cluster scales, the key question then becomes retention: how much of that dust remains in the system, and how much is vented out by clustered explosions. This may help explain both the low retained dust content inferred for Blue Monsters at z>10 and the emergence of dustier systems by z≤8, all within the first few hundred million years of cosmic time.

Format