Welcome
I'm an Astrophysics PhD student at the Astrophysics Research Institute, Liverpool John Moores University. My research focuses on galaxies in the Epoch of Reionisation, and primarily makes use of JWST NIRSpec data.
Find out more
About Me
I'm a second year PhD student at Liverpool John Moores University supervised by Dr Renske Smit, studying emission line galaxies in the Epoch of Reionisation, primarily using JWST NIRSpec spectroscopy. Before this, I completed an MSc by Research at the University of Manchester, where I studied the size and shape evolution of galaxies using JWST NIRCam data, supervised by Prof. Christopher Conselice. I am interested in the formation and evolution of galaxies, dust formation, and galaxy morphology. I am also interested in science communication and outreach.
Education
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PhD in AstrophysicsLiverpool John Moores University, 2023 - presentEmission line galaxies in the Epoch of Reionisation with JWST spectroscopy
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MSc by Research, Astronomy & AstrophysicsUniversity of Manchester, 2022-2023Merit
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BSc (Hons), Physics with Astrophysics and CosmologyLancaster University, 2018-2021Upper Second Class Honours
Research Interests
- Galaxy formation and evolution
- The Epoch of Reionisation
- Galaxy morphology
Current Projects
Emission Line Galaxies in the Epoch of Reionisation
Studying the properties of Spitzer/IRAC excess galaxies in the Epoch of Reionisation with NIRSpec spectroscopy.
Publications
First-author Publications
Detection of the 2175Å UV Bump at z>7: Evidence for Rapid Dust Evolution in a Merging Reionisation-Era Galaxy
Submitted to MNRAS
We report the detection of a strong UV bump in a luminous Lyman-break galaxy at z = 7.11235, GNWY-7379420231, through observations taken as part of the NIRSpec Wide GTO survey
View Publication →EPOCHS VI: the size and shape evolution of galaxies since z~8 with JWST Observations
Monthly Notices of the Royal Astronomical Society (2024)
A size and structural analysis of 1395 galaxies at 0.5 ≤ z ≲ 8 with stellar masses log (M*/M⊙)> 9.5 within public JWST NIRCam data from the CEERS field.
View Publication →Significant Contributions
Detection of [OIII]88 μm in JADES-GS-z14-0 at z=14.1793
The Astrophysical Journal (2025)
The first successful ALMA follow-up observations of a secure z>10 JWST-selected galaxy, by robustly detecting (6.6σ) the [OIII] 88μm line in JADES-GS-z14-0.
View Publication →Galaxy Quenching at the High Redshift Frontier: A Fundamental Test of Cosmological Models in the Early Universe with JWST-CEERS
The Astrophysical Journal (2024)
An analysis of the quenching of star formation in massive galaxies (M* > 10^9.5 M⊙) within the first 0.5–3 Gyr of the Universe's history.
View Publication →All publications
View all my publications on NASA ADS here (last updated 22 March 2025):
View all publications on ADS →Conferences
Conference Talks
First Galaxies
Oxford, UK
April 2025
Contributed talk
Dust and gas throughout cosmic time
Hiroshima, Japan
December 2024
Contributed talk (remote)
National Astronomy Meeting
Hull, UK
July 2024
Contributed talk
Extreme galaxies in their extreme environments at extremely early epochs
Reykjavik, Iceland
April 2024
Contributed talk
Raising the veil on star formation near and far
Cambridge, UK
April 2024
Contributed talk
National Astronomy Meeting
Cardiff, UK
July 2023
Contributed talk
Successful Proposals
NOEMA Interferometer
Co-PI of proposal P461306
Observing time: 16 hours
Outreach
Careers talks
Delivered talks to high schools and sixth forms about my research and career path.
Contact
Get in touch
Email: arikorme@ljmu.ac.uk
Astrophysics Research Institute,
Liverpool John Moores University,
146 Brownlow Hill,
Liverpool