Justin Read
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readdark.bsky.social
Justin Read
@readdark.bsky.social
Astrophysicist hunting for dark matter. All opinions my own.
Reposted by Justin Read
Big news! @astroeth.bsky.social has his Nature paper on the Emergence of Globular Clusters out today! His simulations have globulars forming naturally, as well as some cool globular cluster like dwarfs! Check it out! 🔭🧪☄️

www.nature.com/articles/s41...
The emergence of globular clusters and globular-cluster-like dwarfs - Nature
The results from a state-of-the-art suite of hydrodynamical cosmological zoom-in simulations show how globular clusters naturally emerge in the Standard Cosmology and also reveal the existence of a ne...
www.nature.com
September 10, 2025 at 4:24 PM
Paper day! Izzy Gray proposes a new model for NSC formation in very low mass dwarfs. Model prediction: NSCs should have CMDs with >2, distinct, main sequence turnoffs. Some nearby CGs like OCen and M54 show exactly this behaviour, suggesting they could be accreted NSCs! 🔭

arxiv.org/abs/2405.19286
EDGE: A new model for Nuclear Star Cluster formation in dwarf galaxies
Nuclear Star Clusters (NSCs) are amongst the densest stellar systems in the Universe and are found at the centres of many bright spiral and elliptical galaxies, and up to ${\sim}$40% of dwarf...
arxiv.org
May 31, 2024 at 10:48 AM
Reposted by Justin Read
My final plug for this event at The Royal Institution on Monday
- find out how algorithms and physics combine to teach us about the universe... www.rigb.org/whats-on/uni...
The universe in a box | Royal Institution
Explore the future of our universe, and how scientists are using computers to unravel its mystery.
www.rigb.org
February 3, 2024 at 10:44 AM
Reposted by Justin Read
Interested in more than one position? No problem, apply for one and indicate that you would like to be considered for other positions in your covering letter. Come and join us! We are great 😊🔭🧪
January 15, 2024 at 4:30 PM
Reposted by Justin Read
Perhaps instead you are interested in low frequency gravitational waves from supermassive black holes? Then Alessia Gualandris has the research fellowship for you! 🔭🧪 jobs.surrey.ac.uk/Vacancy.aspx...
January 15, 2024 at 4:27 PM
Reposted by Justin Read
Maybe understanding the formation of globular clusters is your jam. No problem, come and work as a research fellow with @readdark.bsky.social 🧪🔭 jobs.surrey.ac.uk/Vacancy.aspx...
January 15, 2024 at 4:26 PM
Reposted by Justin Read
Hello there! Are you on the job market? Do you love astrophysics? Then how about applying for one of our 3 open Research Fellow positions at the University of Surrey? One of them is with me! Find and study dwarf galaxies with Michelle! 🔭🧪 jobs.surrey.ac.uk/Vacancy.aspx...
January 15, 2024 at 4:24 PM
Reposted by Justin Read
Want to learn about astrophysics from international experts? 🔭🧪 Check out this new series of interviews shot at our IAU Symposium #IAUS379. The first video on "Dwarf Galaxies" featuring the fantastic @runningastronomer.bsky.social is online now (next one in January):
www.youtube.com/watch?v=iQJI...
The smallest galaxies in the Universe • IAUS379 | Dr. Michelle Collins
Dr. Michelle Collins, University of Surrey, UK, answers questions on dwarf galaxies, the smallest and most abundant galaxies in the Universe. Discover what t...
www.youtube.com
December 13, 2023 at 1:12 PM
Reposted by Justin Read
We're back with our stargazing nights at the university of Surrey! This is the first time we've been able to host one since COVID, and true to form, the skies are cloudy 😅 but, we have an excellent talk from @readdark.bsky.social to make up for it 🧪🔭
October 25, 2023 at 6:07 PM
Reposted by Justin Read
We're hiring cosmology / large-scale structure postdocs at UT Austin! If you're interested in analysis or cosmological interpretation of HETDEX (BAO survey) data, or related science, please apply! More info is linked below; feel free to be in touch with me as well.
INSPIRE
inspirehep.net
October 18, 2023 at 6:42 PM
Referee: "I feel the paper could be more concise and less repetitive. Or, to put it another way, it could be less repetitive and more concise."
September 15, 2023 at 5:18 PM
Reposted by Justin Read
Since so many have asked, here’s my hot take on the spherules Loeb found and the manuscript he’s loudly rushed to the world. These are pretty typical cosmic spherules. Had he done the *obvious*--a control sample 100 km away from the meteor--he’d have found the same thing. 1/20
September 1, 2023 at 9:14 AM