Sarah Casewell

Sarah Casewell

STFC Ernest Rutherford Research Fellow

Sarah CasewellDr Sarah Casewell

Department of Physics and Astronomy,
University of Leicester,
University Road,
Leicester, LE1 7RH, UK
T: +44 (0)116 2523549



I am an observational astronomer with research interests in white and brown dwarfs. I have published research on topics as diverse as: the first T dwarfs in the Pleiades, the white dwarf initial mass-final mass relation and new L dwarfs in Blanco 1, the Hyades and Praesepe.

I am currently researching brown dwarfs in close binaries with white dwarfs and am investigating how the atmosphere of the brown dwarf changes with irradiation. I began my STFC Ernest Rutherford Fellowship on irradiated brown dwarfs in January 2019.

I am the LSST person of contact for the Solar Neighbourhood in the UK and I lead the Ariel working group on brown dwarfs - please contact me if you would like to become a member.

A list of my publications can be found here

My CV can be found here

Follow me on twitter @astronomerslc25


I was the chair of the University of Leicester Department of Physics and Astronomy Research Staff Forum, and  a member of the College of Science and Engineering Research Committee until 2018. I also sat on the  STFC Women in SET working group until it was disbanded. I am currently a member of the Departmental  Equality and Diversity working group in the Department of Physics and Astronomy.

I have been a member of the ESO OPC and the UKIRT service panel, and will join the STFC PATT time allocation committee in January 2019.


I do not currently teach, however these are courses I have previously taught.

  • Postgraduate course: Infrared data reduction
  • 2nd year option course: Stellar atmospheres
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