Speaker
Seméli Papadogiannakis
Description
Type Ia supernovae, at low and high-redshifts, are used as
distance indicators for precision cosmology. The
low-redshift SNIa sample is particularly useful for detailed
studies not feasible
with the distant sample. These studies are important to
explore and quantify potential systematic effects in the
derived distances.
The Palomar Transient Factory (PTF, 2009-2012) and its
successor iPTF (2013-2017) collected data from 2000 SNe Ia,
starting very early after the explosion and with lightcurve
coverage of several months.
I will describe the properties of the PTF/iPTF data and some
ongoing analysis
