[institut] Naučno-stručni skup AOB, 6. novembar 2019. godine

[Monika I. Jurkovic]

Dear colleagues,

The next Seminar of the Astronomical Observatory in Belgrade (Volgina 7) 
will take place on Wednesday, 6th of November, 2019, starting at 13.00, 
in the Library.

Speaker: dr Santiago González-Gaitán
Instituto Superior Técnico, University of Lisbon

Title: Extinction studies towards supernovae and their host galaxies


Abstract:

Type Ia supernovae have been successfully used as standard candles in 
cosmology finding direct evidence for an accelerated universe filled 
with an unknown dark energy component. Today, systematic uncertainties 
dominate the error budget of dark energy, and extinction from 
intervening obscuring material in the line of sight still remains a 
primary concern. It has been shown that not all supernovae follow the 
standard Milky Way extinction curve and that the assumption of a common 
extinction law for all of the objects has important implications for 
cosmology; especially if there is an evolution of the populations with 
look-back time. I review the current state of extinction studies towards 
supernovae and present the multiple techniques, including polarization 
and integral field spectroscopy, we are using to address this elusive, 
yet fundamental, question.


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Astronomical Observatory Belgrade
Volgina 7.
11060 Belgrade
Serbia
Tel: +381 11 3089 071
http://mojur.aob.rs
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