Astrophysicist at @RoyalObs studying galaxy formation with @NASAWebb and @EdinburghUni Chancellor's Fellow.
Edinburgh, Scotland
Joined February 2013
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The job ad has just gone live for a 3-year postdoc position in my group at Edinburgh University, working on high-redshift galaxy evolution with JWST and MOONS. The deadline for applications is a month today on 20th December elxw.fa.em3.oraclecloud.com/…
Adam Carnall retweeted
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
Very nice new article published on @astrobites about my most recent paper astrobites.org/2024/10/23/qu…
Aurora from Blackford Hill in Edinburgh this evening @RoyalObs @PhysAstroEd
Very happy to have contributed to this article in @NatureAstronomy about my Bagpipes software, and thanks very much to @dr_paul_woods, I think access code is a great idea! nature.com/articles/s41550-0…
Someone tell @Darudevil
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Happy to have contributed to this article on @ice_in_cosmos's excellent new paper!
Some galaxies hailing from the infant universe may already hold vast populations of old stars.
buff.ly/3S3Vxxh
Very much enjoyed my flying visit to #EAS2024Padova to present a review on the first massive quiescent galaxies. Many thanks to the organisers for inviting me, I’m sure it’ll be a great rest of the week.
Just had an absolutely spectacular 20 minutes, way brighter than it was before and many more colours.
Mess about in Iceland for a week looking for them, then the next week they come right to your back door. #aurora #NorthernLights
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
In fact these galaxies are right on the edge of what can be accommodated by our current model of cosmology, and only then by forming all their gas directly into stars, a process that's normally ~10% efficient. Many thanks to @chrisclovell for helping me set up this comparison 2/3
Thanks very much to all my co-authors, who helped me avoid several pitfalls whilst writing this paper, and look out for plenty more EXCELS results in the near future. Finally, I'll leave you with some music to listen to whilst you're reading the paper 3/3 youtube.com/watch?v=AkMZ6fV3…
![Airbourne - Too Much, Too Young, Too Fast [OFFICIAL VIDEO]](https://pbs.twimg.com/card_img/2118478948925329408/5-Ihr6Fk?format=jpg&name=600x314)
What do Australian hard rock band Airbourne and the first massive quiescent galaxies to appear in the Universe have in common with each other? Find out on tomorrow morning’s ArXiv
Adam Carnall 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
The first half of mine and @FergusLPCullen's JWST Cycle 2 EXCELS programme was observed just before Christmas and the results are looking pretty stunning. For more than a year we've only had data like this for one high-redshift massive quiescent galaxy, now it's quite a few more!
Happy to have contributed to this BBC article about two years of JWST! I'm also popping up on BBC News throughout the day talking about JWST discoveries so far with Profs Gillian Wright and @markmccaughrean. bbc.com/news/resources/idt-6…
Massive respect to whoever asked for 500-1000 hours of JWST time
STScI received 1,931 proposals for #JWST Cycle 3 – a world record – requesting almost 48,800 hours of observing time. Get more proposal submission statistics: bit.ly/47cEvm1
