Presentation of the ZTF SN Ia DR2 sample and associated data release: 3268 SNe Ia, 73% cosmology ready with an overall 0.15 mag Hubble residual scatter.
Detailed presentation of the ZTF SN Ia DR2 dataset: survey operation, photometry, spectra, redshift, hosts and classification.
Review of the photometric accuracy of the DR2 sample: force photometry vs. scene modeling, presentation of the pocket effect and its correction.
Presentation of the spectroscopic dataset. Spectral features of 5138 spectra for 3268 SNe Ia.
Study of the ability of the SALT model to explain the ZTF SN Ia DR2 data as a function of phase, sn- and host-properties.
Extension of the usual two-parameters standardization in the search of a third component. What do the data tell us ?
Detailed simulation of the DR2 observations given SN modeling and observing logs showing the DR2 sample is volume limited up to z=0.06.
Detailed study of the SN Ia standardisation process focusing on stretch and environmental steps. The brighter-slower relation is shown to be non-linear.
On the origin of the SN color distribution, its used for SN standardisation and its connection with the host environments.
Study on the origin of the SN Ia color and its connection with the host stellar mass in light of their redshift evolution. ZTF joined with external dataset.
Using 25 pairs of SN Ia from the same host (siblings) to constraint the standardisation parameters and their host-dependency.
Comparing the SN Ia properties with respect to their association with a Galaxy cluster showing SN Ia from cluster have lower stretch on average.
Study of the SN Ia properties as a function of their large scale structure associations: voids, clusters or filaments.
Analysis based on realistic simulations of the systematic uncertainties on the measurement of H0 associated to ill-modeled peculiar velocity fields.
Detailed study of the diversity of SN Ia spectroscopic features at maximum light, highlighting various sub-groups.
Exhaustive analysis of the photometric diversity of the SN Ia population, presenting how ZTF SN Ia DR2 subclasses are defined.
Search for late time interaction in the ZTF SN Ia DR2 lightcurves finding few cases of rebrightening years after explosion.
Study of the demographic of the high-velocity silicon features as a function of phase evolution finding that most SN Ia show such behavior at early phase.
Use of Gaussian processes on ZTF DR2 lightcurve to caracterize the property of the SN Ia secondary maxima.
Study of the properties of low-mass host SNe Ia in light of astrophysical models.
Analysis of the variation of Type Ia Supernovae properties as function of the morphological properties of their host and its connection of the Ia progenitor physics.