2 sujets /DAp/LMPA

Dernière mise à jour :


 

SL-DRF-24-0314

Research field : Astrophysics
Location :

Direction d’Astrophysique (DAP)

Laboratoire de modélisation des plasmas astrophysiques (LMPA)

Saclay

Contact :

Matthias GONZALEZ

Starting date :

Contact :

Matthias GONZALEZ
Université Paris Cité - DRF/IRFU/DAp/LMPA

33 1 69 08 17 79

Thesis supervisor :

Matthias GONZALEZ
Université Paris Cité - DRF/IRFU/DAp/LMPA

33 1 69 08 17 79

Multi-messenger analysis of core-collapse supernovae

SL-DRF-24-0441

Research field : Astrophysics
Location :

Direction d’Astrophysique (DAP)

Laboratoire de modélisation des plasmas astrophysiques (LMPA)

Saclay

Contact :

Jérôme Guilet

Thierry FOGLIZZO

Starting date : 01-10-2024

Contact :

Jérôme Guilet
CEA - DRF/IRFU/DAP/LMPA

06 38 62 46 30

Thesis supervisor :

Thierry FOGLIZZO
CEA - DRF/IRFU/DAP/LMPA

01 69 08 87 20

Personal web page : https://www.youtube.com/watch?v=-IjAwszbiO8

Core-collapse supernovae play a crucial role in the stellar evolution of massive stars, the birth of neutron stars and black holes, and the chemical enrichment of galaxies. How do they explode? The explosion mechanism can be revealed by the analysis of multi-messenger signals: the production of neutrinos and gravitational waves is modulated by hydrodynamic instabilities during the second following the formation of a proto-neutron star.
This thesis proposes to use the complementarity of multi-messenger signals, using numerical simulations of the stellar core- collapse and perturbative analysis, in order to extract physical information on the explosion mechanism.
The project will particularly focus on the multi-messenger properties of the stationary shock instability ("SASI") and the corotational instability ("low T/W") for a rotating progenitor. For each of these instabilities, the signal from different species of neutrinos and the gravitational waves with different polarization will be exploited, as well as the correlation between them.

• Astrophysics

 

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