Type Ia supernovae (SNe Ia) are the incredibly luminous deaths of white dwarfs in binaries. They play a vital role in chemical enrichment, galaxy feedback, stellar evolution, and were instrumental in the discovery of dark energy....
ver más
¿Tienes un proyecto y buscas un partner? Gracias a nuestro motor inteligente podemos recomendarte los mejores socios y ponerte en contacto con ellos. Te lo explicamos en este video
Proyectos interesantes
PGC2018-095317-B-C21
LAS ESTRELLAS DE MASA BAJA E INTERMEDIA COMO MOTORES DE LA E...
36K€
Cerrado
SNBinaries
Close binary progenitors and ejected donor remnants of super...
183K€
Cerrado
AYA2011-23102
ENANAS BLANCAS: PROGENITORES, EVOLUCION, PULSACIONES Y EXPLO...
71K€
Cerrado
AYA2015-63588-P
LAS ESTRELLAS DE MASA BAJA E INTERMEDIA COMO MOTORES DE LA E...
62K€
Cerrado
SNeX
The origins of thermonuclear supernova explosions
2M€
Cerrado
SPCND
Supernovae Physics and Cosmology in the Next Decade
2M€
Cerrado
Información proyecto SUPERSTARS
Duración del proyecto: 82 meses
Fecha Inicio: 2017-10-25
Fecha Fin: 2024-08-31
Fecha límite de participación
Sin fecha límite de participación.
Descripción del proyecto
Type Ia supernovae (SNe Ia) are the incredibly luminous deaths of white dwarfs in binaries. They play a vital role in chemical enrichment, galaxy feedback, stellar evolution, and were instrumental in the discovery of dark energy. However, what are the progenitor systems of SNe Ia, and how they explode remains a mystery. My recent work has concluded the controversial result that there may be more than one way to produce SNe Ia. As SN Ia cosmology samples reach higher precision, understanding subtle differences in their properties becomes increasingly important. A surprising diversity in white-dwarf explosions has also been uncovered, with a much wider-than-expected range in luminosities, light-curve timescales and spectral properties. A key open question is ‘What explosion mechanisms result in normal SNe Ia compared to more exotic transients?’
My team will use novel early-time observations (within hours of explosion) of 100 SNe Ia in a volume-limited search (<75 Mpc). The targets will come from the ATLAS and Pan-STARRS surveys that will provide unprecedented sky coverage and cadence (>20000 square degrees, up to four times a night). These data will be combined with key progenitor diagnostics of each SN (companion interaction, circumstellar material, central density studies). The observed zoo of transients predicted to result from white-dwarf explosions (He-shell explosions, tidal-disruption events, violent mergers) will also be investigated, with the goal of constraining the mechanisms by which white dwarfs can explode. My access to ATLAS/Pan-STARRS and my previous experience puts me in a unique position to obtain ‘day-zero’ light curves, rapid spectroscopic follow-up, and late-time observations. The data will be analysed with detailed spectral modelling to unveil the progenitors and diversity of SNe Ia. This project is timely with the potential for significant breakthroughs to be made before the start of the next-generation ‘transient machine’, LSST in ~2021.