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SUMMARY:A BayeSN Analysis of the SN Ia Trio of Siblings in NGC 3147 - Sam 
 Ward
DTSTART:20220202T131500Z
DTEND:20220202T134500Z
UID:TALK169439@talks.cam.ac.uk
CONTACT:Hannah Uebler
DESCRIPTION:Type Ia Supernovae (SNe Ia) are standardisable candles\, used 
 to measure luminosity distances and place constraints on cosmological para
 meters. To improve SN Ia standardisation\, we must understand the astrophy
 sical ties between the SNe and their host galaxies. By analysing SN siblin
 gs – those that occur in the same host galaxy – we mitigate scatter in
  the distance estimates from the global host galaxy properties\, which in 
 turn allows us to evaluate our modelling of the remaining systematic uncer
 tainties\, e.g. dust\, intrinsic SED modelling\, and local host galaxy pro
 perties. In this talk\, I will discuss our work using BayeSN\, a hierarchi
 cal Bayesian model of the SN Ia SEDs\, to analyse the first example of a t
 rio of SN Ia siblings in a Cepheid calibrator galaxy\, NGC 3147.
LOCATION:The Hoyle Lecture Theatre + Zoom 
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