CCAPP Seminar - Yacine Ali-Haimoud -(NYU) "Primordial black holes in the era of Planck and LIGO

February 8, 2018
Tuesday, February 13, 2018 - 11:30am to 12:30pm
4138 Physics Research Building

LIGO's first direct gravitational-wave detections have revived interest in an old dark-matter candidate, primordial black holes (PBHs).

In this talk I will first discuss cosmic microwave background constraints to PBHs in the range of ~10 to a few hundred solar masses. 

I will then discuss PBH binary formation processes and the resulting merger rates. In particular, I will argue that LIGO may already set the most stringent limits on PBH abundance, provided PBH binaries formed in the early Universe are not strongly perturbed by tidal fields due to non-linear structures.  


 

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