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Title:Contributed talk at the international conference "Cosmology in Miramare" 2023
Authors:ID Petrushevska, Tanja (Author)
Files:URL https://indico.cern.ch/event/850500/contributions/5540005/
 
Language:English
Work type:Not categorized
Typology:1.12 - Published Scientific Conference Contribution Abstract
Organization:UNG - University of Nova Gorica
Abstract:The searches and observations of supernovae (SNe) have been motivated by the fact that they are exceptionally useful for various astrophysical and cosmological applications. Most prominently, Type Ia SNe (SNe Ia) have been used as distance indicators showing that the expansion rate of the Universe is accelerating. The strong gravitational lensing effect provides another powerful tool and occurs when a foreground mass distribution is located along the line of sight to a background source. It can happen so that galaxies and galaxy clusters can act as “gravitational telescopes”, boosting the faint signals from distant SNe and galaxies. Thanks to the magnification boost provided by the gravitational telescope, we are able to probe galaxies and SNe that otherwise would be undetectable. Therefore, the combination of the two tools, SNe and strong lensing, in the single phenomenon of strongly lensed SNe, provides a powerful simultaneous probe of several cosmological and astrophysical phenomena. By measuring the time delays of strongly lensed supernovae and having a high-quality strong lensing model of the galaxy cluster, it is possible to measure the Hubble constant with competitive precision. In this talk, I will present some of the past and recent results that have been possible due to the observations of strongly lensed supernovae and anticipate what we can expect in the future from the upcoming telescope surveys, such as the Vera C. Rubin Observatory and Nancy G. Roman Space Telescope.
Keywords:cosmology, supernovae, strong lensing
Year of publishing:2023
PID:20.500.12556/RUNG-8400 New window
COBISS.SI-ID:163580675 New window
NUK URN:URN:SI:UNG:REP:XRKAE9FD
Publication date in RUNG:07.09.2023
Views:809
Downloads:2
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Record is a part of a monograph

Title:What can we do with strongly lensed supernovae?
Place of publishing:Trieste, Italy
Year of publishing:2023

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