Study of the type Ia Supernovae variability observed by the Nearby Supernova Factory collaboration
type: Dataset
description: One of the current limitations of type Ia supernovae used as distance indicators is themixing of their different sources of variabilitiy during the empirical standardization of their distance modulus. Using the nearby SNe Ia spectral sample observed by the Nearby Supernovae Collaboration with the instrument SNIFS (Supernovae Intergral Field Sperctrograph), this thesis mainly focuses on this problematic using spectral indicators measurements. The first part of the thesis presents the scientific context as well as the sample used in the analysis. The second part focus on the spectral indicators measurement and their properties in the presence of interstellar dust extinction. The third part is a study of spectral indicators correlations and their use as standardization parameters. In the last part, we use these spectral indicators to construct a mean extinction law for type Ia supernovae
identifier: NNT: 2011LYO10180
issued: 2026-05-09T15:48:15.635849
language: fr
modified: 2026-05-09T15:48:15.635853
contact point: Organization
  fn: CCSD
keyword: analyse-spectrale
keyword: cosmologie-observationnelle
keyword: extinction-du-milieu-interstellaire
keyword: infoeu-reposemanticsdoctoralthesis
keyword: interstellar-extinction
keyword: nearby-supernova-factory-snfactory
keyword: observational-cosmology
keyword: sduothersciences-of-the-universe-physicsother
keyword: spectral-analysis
keyword: supernovae-de-type-ia
keyword: theses
keyword: type-ia-supernovae
keyword: type-ia-supernovae-variability
keyword: variabilite-des-supernovae-de-type-ia
landing page: https://theses.hal.science/tel-00660289

Study of the type Ia Supernovae variability observed by the Nearby Supernova Factory collaboration
type: Distribution
format: HTML
issued: 2026-05-09T15:48:15.642335
modified: 2026-05-09T15:48:15.622308
access URL: https://theses.hal.science/tel-00660289

test_moissonnage_selune
type: Agent