3 papers
astro-ph.CO2021
Constraints on the mean free path of ionising photons at using limits on individual free paths
Sarah E. I. Bosman
The recent measurement of an ionising mean free path pMpc at challenges our understanding of the small-scale structure of the intergalactic medium (IGM) at…
astro-ph.CO2020
Four direct measurements of the fine-structure constant 13 billion years ago
Michael R. Wilczynska, John K. Webb, Matthew Bainbridge +14
Observations of the redshift z=7.085 quasar J1120+0641 have been used to search for variations of the fine structure constant, alpha, over the redshift range 5.5 to 7.1. Observatio…
astro-ph.CO2020
Studying the Lyman- optical depth fluctuations at using fast semi-numerical methods
T. Roy Choudhury, Aseem Paranjape, Sarah E. I. Bosman
We present a computationally efficient and fast semi-numerical technique for simulating the Lyman- (Ly) absorption optical depth in presence of neutral hydrogen "islands" lef…