[institut] [phys4phys] Naučno-stručni skup AOB - četvrtak 24.4.2025. u 13h

[Natasa Bon]

Drage koleginice i kolege,

Pozivam vas na Naučno-stručni skup koji će se održati u biblioteci AOB u 
četvrtak 24.4.2025. u 13h.

Predavač je Michal Bilek.

U nastavku je apstrakt predavanja.

Title: Peculiar dark matter halos inferred from gravitational lensing as 
a manifestation of modified gravity

Abstract:
The missing mass problem has not been solved decisively yet. While the 
currently popular LambdaCDM cosmology can explain many observations, it 
also fails to explain many others. It is then worthwhile to explore the 
alternatives. In my talk, I will point out that an effective way to 
distinguish between the various dark matter and modified gravity 
theories is to make use of the gravitational lensing around isolated 
galaxies and their pairs. I will focus on difference in gravitational 
lensing between the LambdaCDM hypothesis and the QUMOND modified-gravity 
version of the modified Newtonian Dynamics (aka MOND). This exploration 
is particularly timely, since the recently launched Euclid satellite is 
expected to vastly improve our capabilities to observe gravitational 
lensing. It turns out that MOND predicts lensing features that LambdaCDM 
cannot replicate. They should be detectable with Euclid.

Srdačan pozdrav,

dr Natasa Gavrilovic Bon

Associate Research Professor
web site: http://nbon.aob.rs/
Astronomical Observatory Belgrade
Volgina 7
11160 Belgrade, Serbia
Tel:+381 11 3089 068
Fax:2419 553
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