Adam Carnall

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/hcmUI/Candidat…

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/qui…

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/s4155…

@grobertsborsani @ucl Congratulations!

Absolutely delighted to announce from Jan 2025 I will be joining @ucl Astro as tenure-track Assistant Prof / Lecturer! My group will focus on understanding the formation and evolution of the first stars, galaxies, and black holes in the Universe with our foremost telescopes.

Someone tell @Darudevil

@royalsociety @NASAWebb The light travel time is 13.5 billion years, but neither the comoving nor the proper distance is 13.5 billion light years.

This image from @NASAWebb shows a galaxy an estimated 13.5 billion light years away, formed only 290 million years after the Big Bang. Born #OnThisDay in 1894 was physicist Georges Lemaître, who was one of the first to theorise both the Big Bang and an expanding universe.

Happy to have contributed to this article on @ice_in_cosmos's excellent new paper!

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.

@VNathir Thanks for the photo, hope you don’t mind if I use it, good luck with your talk!

Mañana toca dar una charla🙃 #EAS2024

@ACCarnall Good afternoon, please accept my apologies for this. Can you direct message me your name, address and council tax reference and I will pass this on to be rectified. Lorraine

@midgov I moved out of Midlothian six months ago, notified you in advance, and I'm still getting demands for council tax. Obviously, I can't get through to anyone on the phone. Please sort out your pathetic organisation, stop threatening me, and pay me the money that you owe me.

@JerryLenhart1 Scottish Borders

@ACCarnall Where?

Just had an absolutely spectacular 20 minutes, way brighter than it was before and many more colours.

@sarahkendrew Yeah Scottish Borders

@ACCarnall Is this Scotland? Seeing pics from North London too which is incredible.

Mess about in Iceland for a week looking for them, then the next week they come right to your back door. #aurora #NorthernLights

OMG!

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=AkMZ6f…

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

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