Another new paper, lead by my AIP PhD student Jamie Kanehisa (with Oliver Müller, Ph.D.). We identified a serious "Too Many Dwarf Galaxies" problem, not for a specific host but for the whole MATLAS survey targeting 150 fields around early-type hosts. arxiv.org/abs/2405.05303 🧵

Always a pleasure to work with Marcel S. Pawlowski, Nick Heesters, and the amazing team in AIP. The biggest shout-out goes to Jamie Kanehisa though, who went above and beyond. He basically came up with the paper after seeing an early version of our work on M83.

Paper day! We present the NGC4490 system as yet another satellite galaxy plane in strong tension with expectations from ΛCDM cosmological simulations. With Oliver Müller, Ph.D., Nick Heesters & my COSMICOR team at AIP (Salvatore, Mariana & Jamie). arxiv.org/abs/2405.06016 1/n

Please help retweet this Posdoc position. Many complained academia is broken, but nobody acted. Let me try by providing this position with high-level freedom at Nanjing University in China. Details about our astronomy department can be found here: astronomy.nju.edu.cn/EN/index.html

Two groups of astronomers have found evidence for not just a sufficient number of satellite galaxies to satisfy the simulations—but too many. scim.ag/732

Astronomers find long-missing dwarf galaxies—too many of them Nice article by Jonathan O’Callaghan in Science Magazine featuring our recent work on too many dwarfs in the MATLAS survey and placing it into context of other current research. science.org/content/articl…

Astronomers once thought there might be a "missing satellites problem" – our Milky Way didn't have enough dwarf galaxies in its grip. Now we might have oversolved the problem, finding too many satellites. What's going on? Story by me News from Science science.org/content/articl…

Hm, Facebook considers my post on the "too many dwarf galaxies" article a violation of their Community Standards against showing graphic violence ... ... and this wasn't even about tidal disruption events or supernova explosions. 🙃

Paper day! Izzy Gray proposes a new model for NSC formation in tiny dwarfs. Prediction: NSCs should have CMDs with >2, distinct, MS turnoffs. Some nearby CGs like OCen and M54 show exactly this behaviour, suggesting they could be accreted NSCs! arxiv.org/abs/2405.19286

I WANT people to know it was me that liked their tweets. Now my only option is to reply & write the word "like". This will seriously cut into my time wishing folks a🎂! How can we get the powers-that-be to STOP "improving" this site? Grrrrrr! 🤬 #BringBackLIKES

Weak lensing: Rotation curves of galaxies could be flat up to 1 Mpc.

If you needed proof you’re being manipulated on this platform, here it is.

New paper, lead by Nick Heesters, in which we find an increased incidence of significantly lopsided (asymmetric) satellite galaxy distributions around a large sample of observed host galaxies. Nick tweeted a fantastic thread about it, too. Go check it out and give him a follow!👇

Check out Nick Heesters's second paper of his Ph.D. on anistropies in dwarf galaxy satellite distributions. It's a very cool work and showcases what you actually can do with the growing catalogs of nearby dwarf galaxy systems.

Kudos to Kravtsov (2024, arxiv.org/pdf/2406.13732). This is how you use a compilation and give credit to the hard work of the community!

ERC Starting Grant call is out. See you all in three months... 😅😂🤣

For an ERC Starting Grant, I see that many recommend not to do a "continuation" of your current research project, but rather go for a "dream project" (e.g. ncbi.nlm.nih.gov/pmc/articles/P…). What if your current project *is* your dream project? Any thoughts on that?

Any ERC Starting Grantees out there willing to have a chat with me for tips and tricks?

We (with Oliver Müller, Ph.D.) have a new preprint out today: arxiv.org/abs/2412.14330 Long story short: if your only tool is "planarity", everything looks like a plane (of satellite galaxies). But let me explain. 🧵