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SUMMARY:Type Ia Supernovae standardisation with the ZTF SN Ia DR2 sample -
  Madeleine Ginolin (IP2I\, Lyon)
DTSTART:20241111T160000Z
DTEND:20241111T170000Z
UID:TALK223054@talks.cam.ac.uk
CONTACT:65128
DESCRIPTION:Type Ia Supernovae (SNe Ia) are the most common probes used to
  infer distances in current cosmological analyses. However\, as their magn
 itude exhibits a natural scatter\, SNe Ia need to be standardised in order
  to make the derived distance measurements accurate enough for cosmology. 
 I will first introduce briefly SNe Ia and their use in cosmology. Secondly
 \, I will present the ZTF survey and its DR2 Type Ia supernovae sample. Wi
 th already more than 3\,000 SNe Ia ready for cosmology\, ZTF will be in fu
 ture years the state-of-the-art low-redshift sample needed to anchor Stage
  IV supernovae surveys\, e.g. LSST. I will finally present my work on the 
 distributions of SNe Ia parameters (stretch and colour) and the standardis
 ation relations found in ZTF\, and how they depend on SNe Ia astrophysical
  environment. 
LOCATION:Martin Ryle Seminar Room\, KICC
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