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SUMMARY:Radio Sky: Near and Far - Anastasia Fialkov
DTSTART:20181010T121500Z
DTEND:20181010T124500Z
UID:TALK111025@talks.cam.ac.uk
CONTACT:Dr Giovanni Rosotti
DESCRIPTION:Radio observations at and below 1 GHz are a potentially powerf
 ul way to probe Reionization history and to learn about primordial star fo
 rmation. In my talk I will discuss two types of observations\, namely  Fas
 t Radio Bursts (FRBs) and the 21-cm line of neutral hydrogen. FRBs\, disco
 vered in 2007\, are cosmological transient signals of undetermined origin 
 detected at ~1 GHz. Dispersion measure of FRBs depends on the total column
  of ionized gas and can be used to directly constrain Reionization. I will
  discuss new ways to constrain the population of FRBs. On the other hand\,
  the predicted 21-cm signal of neutral hydrogen contains information on th
 e neutral Universe and can be used to study processes of star and black ho
 le formation. I will focus on modelling the signal and discuss the latest 
 observational constraints on the high redshift Universe.
LOCATION:Sackler Lecture Theatre\, IoA
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