Benedikt Diemer
banner
benedikt.bsky.social
Benedikt Diemer
@benedikt.bsky.social
Assistant prof of astrophysics at UMaryland. Immigrant. Maker of Colossus, SPARTA, and other codes.

http://www.benediktdiemer.com
Reposted by Benedikt Diemer
Do you lie awake at night worrying about cosmic collapse? On Feb 18th, @benedikt.bsky.social will tell us why cosmic collapse keeps your lights on! Curious? Come to @dc9club.bsky.social to learn more!
RSVP for your free ticket here: dice.fm/event/py7okw...
Science made possible by your govt agencies
Astronomy on Tap Tickets | Free | 18 Feb @ DC9, Washington D.C. | DICE
͏feat: beer, trivia & space talks BAR OPENS at 5:00PM Astronomy on Tap DC features 3 speakers giving engaging talks about the Universe and prize giveaways....
dice.fm
February 16, 2025 at 2:10 AM
This should be a fun one! Really looking forward to finally doing AoT DC 🍺🔭
Join us at @dc9club.bsky.social on February 18th to celebrate the amazing space discoveries made possible by our government agencies! We'll learn about dark energy, cosmic collapse and using X-ray sunglasses to unlock cosmic mysteries.
RSVP at DICE for FREE ticket: dice.fm/event/py7okw...
February 8, 2025 at 12:44 AM
I'm super excited about this paper on the arXiv today led by UGent grad student Andrea Gebek!

Why are there basically no red galaxies in IllustrisTNG at cosmic noon? It's tempting to think that there might be something wrong about SFRs, but what about dust...

arxiv.org/abs/2501.12008
The mass-dependent UVJ diagram at cosmic noon: A challenge for galaxy evolution models and dust radiative transfer
Context. The UVJ color-color diagram is a widely used diagnostic to separate star-forming and quiescent galaxies. Observational data from photometric surveys reveal a strong stellar mass trend, with h...
arxiv.org
January 22, 2025 at 6:15 PM
On the arXiv: great work led by graduating student John Soltis and Michelle Ntampaka.

The issue: the accretion rate is key for the properties of cluster halos, but we have no reliable observational proxies. So we decided to use ML to look for "optimal" info in realistic X-ray/SZ maps from MTNG.
A Multi-Wavelength Technique for Estimating Galaxy Cluster Mass Accretion Rates. John Soltis et. al. https://arxiv.org/abs/2412.05370
December 10, 2024 at 4:37 PM
Wrapping up 10 days in China by catching up with my undergrad adviser (after 16 years), friends, and collaborators... thanks for the fantastic visits, Tsinghua and Jiao Tong! A truly memorable trip. Apologies to all the ducks that got harmed in the process.
November 29, 2024 at 9:47 AM
Just logged out of twitter for good and my mental health immediately improved by 6.3%
November 17, 2024 at 2:15 PM
Need the age of the Universe at z = 5 but only got a phone? Wanna compute a correlation function without python? Fear not, for we are proudly presenting Colossus-Web, a powerful online cosmology calculator!

colossus.astro.umd.edu

More info in replies...
March 12, 2024 at 9:04 PM
UMD astronomy is hiring! It's an open call, though we're particularly interested in observers this time. Feel free to message if you're interested and have questions, since I went through the process not that long ago.

jobregister.aas.org/ad/2ac49c51
November 20, 2023 at 7:53 PM