Author/Authors :
Kerschhaggl، نويسنده , , M. and Aldering، نويسنده , , G. and Antilogus، نويسنده , , Patrick P. and Aragon، نويسنده , , C. and Bailey، نويسنده , , S. and Baltay، نويسنده , , C. and Bongard، نويسنده , , S. and Buton، نويسنده , , C. and Canto، نويسنده , , A. and Childress، نويسنده , , M. and Chotard، نويسنده , , N. and Copin، نويسنده , , Y. and Fakhouri، نويسنده , , H.K. and Gangler، نويسنده , , E. and Hsiao، نويسنده , , E.Y. and Kowalski، نويسنده , , M.، نويسنده ,
Abstract :
The Nearby Supernova Factory (SNfactory) is currently finishing its first survey of low redshift ( 0.03 < z < 0.08 ) type Ia supernovae. These data add to the understanding of the expansion history of the universe. Observations are performed using the Supernova Integral Field Spectrograph (SNIFS), an integral field spectrograph delivering full spectro-photometric information of the target. The corresponding dataset aims at the inference of the Hubble diagram zero point with unprecedented accuracy. Moreover, the data offers a variety of related physical studies such as the understanding of progenitor systems, explosion scenarios and host galaxy characteristics. The SNfactory is also working on novel methods accessible with spectro-photometric measurements, reducing systematic uncertainties and improving the statistical power of the SN data.
