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Title: Systematic Effects in Type-1a Supernovae Surveys from Host Galaxy Spectra

The physical relation between the properties of Type Ia supernovae and their host galaxies is investigated. Such supernovae are used to constrain the properties of dark energy, making it crucial to understand their physical properties and to check for systematic effects relating to the stellar populations of the progenitor stars from which these supernovae arose. This grant found strong evidence for two distinct populations of supernovae, and correlations between the progenitor stellar populations and the nature of the supernova light curves.
  1. Princeton University
Publication Date:
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Technical Report
Research Org:
Princeton University
Sponsoring Org:
USDOE; USDOE Office of Energy Research (ER)
Country of Publication:
United States
79 ASTRONOMY AND ASTROPHYSICS Cosmology, supernovae, stellar populations