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Seminar: March 16th, 11:15 a.m., room 34 (A-2). Speaker: Magdalena Szkudlarek . Title: "Probability of GW150914 to be formed in a globular cluster."

Data: 
poniedziałek, Marzec 14, 2016 - 08:45

March 16th, 11:15 a.m., room 34 (A-2).

Speaker: Magdalena Szkudlarek

Title: "Probability of GW150914 to be formed in a globular cluster."

Abstract: The event GW150914 is the first gravitational wave detection of the binary black hole merger at redshift z~0.1. The measured masses of black holes in the system are higher than 25 Msol.  This implies the formation of GW150914 in a low metalicity environment. Globular clusters are highly probable to generate such kind of binaries. The high rate of interactions in globular clusters could cause high rate of binary black holes mergers. In addition numerous compact binaries are ejected from globular clusters and enriches galactic halos.  In our work we analyse evolutionary simulations of globular clusters made with the MOCCA code and calculate the event rate of compact binaries mergers.  In particular we study  formation of systems like GW150914 in globular clusters.