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Dr Judith Helen Croston

Profile summary

  • Central Academic Staff
  • Lecturer in Physical Sciences
  • Faculty of Science, Technology, Engineering & Mathematics
  • School of Physical Sciences
  • judith.croston

Professional biography

I am currently a Lecturer in Physical Sciences. I was formerly Academic Director for Physical Sciences at the University of Cambridge Institute of Continuing Education (2014-2016), Principal Research Fellow at the University of Southampton (2015-2017), Lecturer at the University of Southampton (2009-2015), Research Fellow at the University of Hertfordshire (2005-2009), Associate Lecturer (part-time) with the Open University (2006-2008) and Ingenieur Postdoc at the Service d'Astrophysique, Commission d'Energie Atomique (Saclay) (2004-2005). I obtained my PhD from the University of Bristol in 2004, and my MSci (Physics with Astrophysics) also from the University of Bristol in 2001. 

Research interests

My research interests include the physics of extragalactic jets, the physics of galaxy groups and clusters, high-energy astrophysics, the evolution of galaxy groups and large-scale structure, and next-generation X-ray and radio facilities, including LOFAR, SKA and Athena. I'm an active member of the LOFAR Extragalactic Surveys KSP, and a Topical Panel chair for the ESA Athena next-generation X-ray observatory. As of July 2017 I have published >95 refereed journal articles, accruing >4700 citations.

Teaching interests

I have taught a variety of courses in physics and astronomy at undergraduate and postgraduate level, including core physics, stellar evolution, galaxies, high-energy astrophysics and cosmology. 

Research Activity

Externally funded projects

Exploring jet populations with LOFAR surveys

RoleStart dateEnd dateFunding source
Lead01/Jul/201730/Sep/2017Royal Astronomical Society (RAS)
Royal Astronomical Society Undergraduate Research Bursary

Jet energy injection in galaxy groups and clusters - transfer of CG funding (Transfer in)

RoleStart dateEnd dateFunding source
Lead01/May/201731/Mar/2019STFC (Science & Technology Facilities Council)
This grant funds a postdoctoral research associate to investigate the physics and energetic impact of radio-loud active galaxies, using new datasets from the Low-Frequency Array (LOFAR) together with other multi-wavelength observations. Jet energy injection is a crucial process in the evolution of galaxies and galaxy clusters, and this project aims to improve our understanding of the role of jets in the Universe.


FR II radio galaxies at low frequencies – II. Spectral ageing and source dynamics (2017-07)
Harwood, Jeremy J.; Hardcastle, Martin J.; Morganti, Raffaella; Croston, Judith H.; Brüggen, Marcus; Brunetti, Gianfranco; Röttgering, Huub J. A.; Shulevski, Aleksander and White, Glenn J.
Monthly Notices of the Royal Astronomical Society, 469(1) (pp. 639-655)
A new method for finding and characterizing galaxy groups via low-frequency radio surveys (2017)
Croston, J.H.; Ineson, J.; Hardcastle, M. J. and Mingo, B.
Monthly Notices of the Royal Astronomical Society ((Early Access))
An X-ray survey of the 2Jy sample. II: X-ray emission from extended structures (2017)
Mingo, Beatriz; Hardcastle, M. J.; Ineson, J.; Mahatma, V.; Croston, J. H.; Dicken, D.; Evans, D. A.; Morganti, R. and Tadhunter, C.
Monthly Notices of the Royal Astronomical Society ((Early Access))

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