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SUMMARY:Impact of XRB Stochasticity on 21-cm Observables from CD-EoR - Sas
 wata Dasgupta
DTSTART:20250519T121500Z
DTEND:20250519T124000Z
UID:TALK232528@talks.cam.ac.uk
CONTACT:Cristiano Longarini
DESCRIPTION:Abstract: High Mass X-ray Binaries (HMXBs) are thought to be o
 ne of the key contributors to the X-ray background during the Cosmic Dawn 
 (CD) and Epoch of Reionization (EoR). However\, in traditional semi-numeri
 cal simulations of the CD-EoR\, the LX-SFR relation is assumed to be fixed
  across cosmic time\, which may not be accurate\, especially for low star-
 forming regions. To mitigate this problem\, we model the total luminosity 
 in a stochastic manner and implement it in our 21-cm simulation from the C
 D-EoR to see its imprints on the 21-cm signal statistics like the Power Sp
 ectrum and 21-cm brightness temperature maps. We find the effects of XRB s
 tochasticity in the small-scale PS (k > 0.9) and in the 21-cm maps that ma
 y have the potential for detection via the lunar based observations. 
LOCATION:The Hoyle Lecture Theatre + Zoom 
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