IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
SNe Type Ia in SPH Galaxy Simulations: progenitors systems and the chemical patterns of the host galaxy
Autor/es:
NOELIA JIMENEZ; PATRICIA B. TISSERA; FRANCESCA MATTEUCCI
Reunión:
Conferencia; National Astronomy; 2015
Resumen:
The nature of the Type Ia supernovae (SNIa) progenitors remains stilluncertain. This is a major issue for galaxy evolution models sinceboth chemical and energetic feedback play a major role in the gasdynamics, star formation and therefore in the overall stellarevolution. The progenitor models for the SNIa available in theliterature propose different distributions for regulating theexplosion times of these events. These functions are known as theDelay Time Distributions (DTDs). In this talk I will present a studyof five different DTDs for SNIa implemented in SPH galaxies dominatedby a rapid quenching of the star formation, displaying the majority ofthe stars concentrated in the bulge component. The simulations arecompared with the present observed SNIa rates and to the [O/Fe] ratios shown by the bulge of the Milky Way. These observables set very stringent constraints to the proposed scenario for SNIa and for galaxy formation models.