Imperial College London

Dr Jonathan R. Pritchard

Faculty of Natural SciencesDepartment of Physics

Reader in Astrophysics



+44 (0)20 7594 7557j.pritchard Website CV




1018CBlackett LaboratorySouth Kensington Campus





(personal homepage)

My academic journey began with an undergraduate degree in Natural Sciences from Cambridge.  I then moved out west to study for a PhD in the Theoretical Astrophysics group at the California Institute of Technology.  From there I migrated east as a Hubble Fellow at the Harvard-Smithsonian Center for Astrophysics.  In 2011, I joined the Physics department at Imperial College London as a lecturer in Astrostatistics.  My research addresses the first billion years after the big bang, focussing on the period when the first generations of stars and galaxies formed.  I'm particularly interested in the possibility of using new radio frequency observations with telescopes like LOFAR and the Square Kilometer Array to learn about this period.



Kamran M, Ghara R, Majumdar S, et al., 2022, Redshifted 21-cm bispectrum: impact of the source models on the signal and the IGM physics from the Cosmic Dawn, Journal of Cosmology and Astroparticle Physics, ISSN:1475-7516

Acedo EDL, de Villiers DIL, Razavi-Ghods N, et al., 2022, The REACH radiometer for detecting the 21-cm hydrogen signal from redshift z approximate to 7.5-28, Nature Astronomy, Vol:6, ISSN:2397-3366, Pages:984-+

Cumner J, Acedo EDL, de Villiers DIL, et al., 2022, Radio Antenna Design for Sky-Averaged 21cm Cosmology Experiments: The REACH Case, Journal of Astronomical Instrumentation, Vol:11, ISSN:2251-1717

Koopmans LVE, Barkana R, Bentum M, et al., 2021, Peering into the dark (ages) with low-frequency space interferometers Using the 21-cm signal of neutral hydrogen from the infant universe to probe fundamental (Astro)physics, Experimental Astronomy, Vol:51, ISSN:0922-6435, Pages:1641-1676

Gorce A, Hutter A, Pritchard JR, 2021, Using the sample variance of 21cm maps as a tracer of the ionisation topology, Astronomy and Astrophysics: a European Journal, Vol:653, ISSN:0004-6361, Pages:1-14

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