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Title:Strongly lensed supernovae at high-redshifts : Invited seminar 'Strongly lensed supernovae at high-redshifts' at NCBJ, Poland
Authors:ID Petrushevska, Tanja, University of Nova Gorica (Author)
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Language:English
Work type:Not categorized
Typology:3.14 - Invited Lecture at Foreign University
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. In this talk, I will present some of the past 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.
Keywords:supernovae, strong lensing
Place of performance:Online
Year of performance:2023
PID:20.500.12556/RUNG-8027 New window
COBISS.SI-ID:145436675 New window
NUK URN:URN:SI:UNG:REP:UFMYJAIN
Publication date in RUNG:16.03.2023
Views:1067
Downloads:0
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Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:Z1-1853

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