Naredni sastanak Seminara biće održan u sredu, 2. aprila 2025, u sali 301f Matematičkog instituta SANU sa početkom u 12 časova. 

Predavač: dr Mihal Bilek, Astronomska opservatorija u Beogradu

Naslov predavanja: GRAVITATIONAL LENSING BY GALAXIES AS A PROBE OF THE LAW OF GRAVITY

Apstrakt: 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.

Napomena: Seminar je moguće pratiti na daljinu putem linka(nakon što se ulogujete):
https://miteam.mi.sanu.ac.rs/asset/QPYfBbqdhTF5spTAt

Registracija za učešće na seminaru je dostupna na sledećem linku:
https://miteam.mi.sanu.ac.rs/asset/CyzPn2zriMsWWNzii

Neulogovani korisnici mogu pratiti predavanje putem linka:
https://miteam.mi.sanu.ac.rs/call/yujMwF3JyYqzw6Jth/2m0heDiyDRqBDFTDIItulzyPrdbs5PT8mt_WmgRpRgr