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Confirmation of a Star Formation Bias in Type Ia Supernova Distances and its Effect on Measurement of the Hubble Constant
M. Rigault, G. Aldering, M. Kowalski +35
Previously we used the Nearby Supernova Factory sample to show that SNe~Ia having locally star-forming environments are dimmer than SNe~Ia having locally passive environments.Here…
Type Ia Supernova Distance Modulus Bias and Dispersion From K-correction Errors: A Direct Measurement Using Lightcurve Fits to Observed Spectral Time Series
C. Saunders, G. Aldering, P. Antilogus +34
We estimate systematic errors due to K-corrections in standard photometric analyses of high redshift Type Ia supernovae. Errors due to K-correction occur when the spectral template…
Extending the supernova Hubble diagram to z~1.5 with the Euclid space mission
P. Astier, C. Balland, M. Brescia +25
We forecast dark energy constraints that could be obtained from a new large sample of Type Ia supernovae where those at high redshift are acquired with the Euclid space mission. We…
Type Ia supernova bolometric light curves and ejected mass estimates from the Nearby Supernova Factory
R. Scalzo, G. Aldering, P. Antilogus +32
We present a sample of normal type Ia supernovae from the Nearby Supernova Factory dataset with spectrophotometry at sufficiently late phases to estimate the ejected mass using the…
Type Ia Supernova Hubble Residuals and Host-Galaxy Properties
A. G. Kim, G. Aldering, P. Antilogus +33
Kim et al. (2013) [K13] introduced a new methodology for determining peak-brightness absolute magnitudes of type Ia supernovae from multi-band light curves. We examine the relation…