<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Dear all,<br class=""><br class=""><div class="">This <b class="">Friday, Jan 13th</b>, we will have a seminar by Alex Barreira from the Ludwig Maximilian University of Munich and ORIGINS Excellence Cluster.</div><div class="">The seminar will be at <b class="">11 am (exact) in lecture hall I, Ivan Supek wing</b>. </div></div><div class=""><br class=""></div><div class="">Title:</div><div class="">Connecting the visible to the dark Universe: probing inflation using galaxy data<br class=""><br class="">Abstract:<br class="">Galaxy bias is the relation between the visible distribution of galaxies and their invisible dark matter-dominated environment. Studying galaxy bias leads not only to improved cosmological constraints using galaxy data, but invariably also to new insights about the astrophysics of the galaxy-environment connection. After introducing the basic concepts behind galaxy bias and its parameters, I will discuss how a good knowledge of galaxy bias is crucial to let us probe the physics of inflation using galaxy data. I will show that existing bounds on local primordial non-Gaussianity (PNG) currently suffer from serious galaxy bias uncertainties, and discuss possible ways forward. I will also show results from the first ever search for compensated isocurvature perturbations (CIP) using the scale-dependent bias effect.<br class=""></div><div class=""><br class=""></div><div class="">Best regards,</div><div class="">Oleg Antipin.</div></body></html>