Astrophysics PhD student at @PhysAstroEd | chemical enrichment of galaxies at high-z | boulderer, guitarist, film photographer + gig-goer | (he/him) 🏳🌈
Edinburgh, Scotland
Joined November 2020
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New paper today!🤠
For a sample of star-forming galaxies at z ≈ 4 from the EXCELS survey, we measure the electron temperatures, densities, and the Ar/O and Ne/O abundance ratios. Our main result is that Ar/O is lower at high-z compared to local sources!
arxiv.org/abs/2411.11837
This is clearest by direct comparison of our abundance ratios compared to local samples. However, samples remain small, so larger surveys focused on abundances are needed to fully assess this probe of supernovae contributions.
If interested, please see the paper! Thanks to my supervisor (@FergusLPCullen) and all of our collaborators for their help with this project!
Thomas Stanton retweeted
Too much, too young, too fast? The first results from mine and @FergusLPCullen's EXCELS JWST Cycle 2 programme are out today. We show beautiful new spectra for 4 ultra-massive galaxies that formed way too many stars when the Universe was way too young 1/3 arxiv.org/abs/2405.02242
My first lead-author paper is on arxiv today! 🤠
By measuring the O and Fe abundances of star-forming galaxies at z≈3.5, we constrain the stellar + gas-phase mass-metallicity relationships and find our galaxies have ubiquitously supersolar O/Fe ratios!
arxiv.org/abs/2405.00774
These results add further evidence to support a picture in which high-redshift star-forming galaxies are ubiquitously ⍺-enhanced, as expected for young systems whose ISM is primarily enriched by core-collapse supernovae. If interested, please see the paper for full details!
My express thanks to all contributing authors for getting this paper off the ground, and the utmost thanks to @FergusLPCullen for his guidance, support and patience throughout this project. 😁
Thomas Stanton retweeted
I'm happy to present our new paper on the UV luminosity function at z=9-15! We use a combination of the PRIMER, JADES and NGDEEP surveys covering 370 sq.arcmin. and reaching depths of 30 AB mag in the deepest region. 1/6
arxiv.org/abs/2403.03171
Thomas Stanton retweeted
New paper on the arXiv today - investigating the UV continuum SEDs of galaxy candidates at z > 8. Our main new finding is that at z > 10 the UV continuum looks uniformly `dust-free' . arxiv.org/abs/2311.06209
Excited to be presenting a poster at nam 2023, showing preliminary results from the joint analysis of rest-frame optical and UV spectra of star-forming galaxies at z~3.5, with the aim of investigating how oxygen/iron abundances scale with galaxy properties, and alpha enhancement.
Thomas Stanton retweeted
Our paper on the DDT program led by @Richarwirman is on arxiv! We spectroscopically confirm 2 bright
galaxies at z>10. This reinforces the large abundance of bright galaxies at z>10 while showing the importance of spectroscopic verification: arxiv.org/abs/2303.15431
