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SUMMARY:Strongly lensed supernovae: New cosmological and astrophysical pro
 bes in the time-domain era - Suhail Dhawan
DTSTART:20230510T121500Z
DTEND:20230510T130500Z
UID:TALK200911@talks.cam.ac.uk
CONTACT:107642
DESCRIPTION:Strongly lensed supernovae are excellent\, independent probes 
 to measure the Hubble constant and weigh in on the Hubble tension. In my t
 alk I will discuss the time delay measurements for the first resolved stro
 ngly lensed Type Ia supernova\, iPTF16geu and the discovery of the first l
 ensed SN with the Zwicky Transient Facility\, SN Zwicky. I will review ong
 oing spectroscopic analysis of   SN Zwicky\, to test - with high-fidelity 
 data - whether high-redshift SNe Ia are similar to their near universe cou
 nterparts\, an important systematic for dark energy inference. With JWST\,
  we can feasibly obtain NIR spectra in the nebular phase to study the pres
 ence of stable elements in the ejecta and therefore\, understand the proge
 nitors of SNe Ia.  In the LSST era\, we expect tens of lensed SNe per year
 . In this talk\, I will summarise ongoing work on the impact of the survey
  cadence and systematics on the lensed SN discovery rate.
LOCATION:The Hoyle Lecture Theatre + Zoom 
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