Speaker: Heather Campbell
Location: Azores summer school
I presented the analysis of 709 Type Ia Supernovae (SNe Ia) from the SDSS-II Supernovae Survey, with host galaxy redshifts from the Baryon Oscillation Spectroscopic Survey (BOSS). I described the method I have developed to photometrically classify SNe Ia that lack a supernova spectrum, but includes the host spectroscopic redshift as a prior in the photometric typing. I have compiled a sample of well-trusted SNe Ia (less than 3% contamination), which I have used to build the largest SN Hubble diagram to date selected from a single survey, namely the SDSS. I talked about the cosmological parameters fits for this data-set and discuss potential bias in the sample which I have been investigating using simulated sampled of SDSS supernovae. These bias effects include classification uncertainties and Malmquist bias from the SNe Ia and their host galaxies.