The impact of anisotropy from finite light traveltime on detecting ionized bubbles in redshifted 21-cm maps

  title={The impact of anisotropy from finite light traveltime on detecting ionized bubbles in redshifted 21-cm maps},
  author={Suman Majumdar and Somnath Bharadwaj and Kanan K. Datta and Tirthankar Roy Choudhury},
  journal={Monthly Notices of the Royal Astronomical Society},
The detection of ionized bubbles around quasars in redshifted 21-cm maps is possibly one of the most direct future probes of reionization. We consider two models for the growth of spherical ionized bubbles to study the apparent shapes of the bubbles in redshifted 21-cm maps, taking into account the finite light traveltime (FLTT) across the bubble. In both models, the bubble has a period of rapid growth beyond which its radius either saturates or grows slowly. We find that the FLTT, whose effect… Expand
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