Stargazing astrophysicist, data scientist, nerd, blogger, guitarist, Pen & Paper enthusiast. @EPFL_en, formerly @UniBasel, @ObsStrasbourg, @Google_CH. He/him.
Basel, Switzerland
Joined October 2014
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Yesterday was my last day of working at Google. Perhaps this comes as surprise to you twitter folks, as I haven't widely announced that I left academia to try something new. Here's what I learned in 9 months as a Data Analyst who (temporarily) left Astronomy for Big Tech. 1/n
Oliver Müller, Ph.D. retweeted
We (with @VoltarCH) 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. 🧵
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/article…). What if your current project *is* your dream project? Any thoughts on that?
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!
Oliver Müller, Ph.D. retweeted
New paper, lead by @Heesters_N, 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!👇
It's paper day! arxiv.org/abs/2406.11684, incl. Helmut Jerjen, @VoltarCh, @8minutesold and Jamie Kanehisa. We quantified the degree of lopsidedness in a large sample of isolated satellite systems in the Local Volume and beyond. 🧵
Check out @Heesters_N'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.
It's paper day! arxiv.org/abs/2406.11684, incl. Helmut Jerjen, @VoltarCh, @8minutesold and Jamie Kanehisa. We quantified the degree of lopsidedness in a large sample of isolated satellite systems in the Local Volume and beyond. 🧵
Oliver Müller, Ph.D. retweeted
Weak lensing: Rotation curves of galaxies could be flat up to 1 Mpc.
This Post is from an account that no longer exists. Learn more
Oliver Müller, Ph.D. retweeted
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
@MarkHamill Maybe we can start a hashtag to bring back "likes"? Perhaps #BringLikesBack? I bet it would go viral if you tweeted it!
Oliver Müller, Ph.D. retweeted
Paper day! @IzzyGrayAstro 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
Oliver Müller, Ph.D. retweeted
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. 🙃
Oliver Müller, Ph.D. retweeted
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 @NewsfromScience
science.org/content/article/…
Oliver Müller, Ph.D. retweeted
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
Oliver Müller, Ph.D. retweeted
Astronomers find long-missing dwarf galaxies—too many of them
Nice article by @Astro_Jonny in @ScienceMagazine featuring our recent work on too many dwarfs in the MATLAS survey and placing it into context of other current research.
science.org/content/article/…
Oliver Müller, Ph.D. retweeted
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/inde…
Oliver Müller, Ph.D. retweeted
Paper day! We present the NGC4490 system as yet another satellite galaxy plane in strong tension with expectations from ΛCDM cosmological simulations.
With @VoltarCH, @Heesters_N & my COSMICOR team at @AIP_Potsdam (Salvatore, Mariana & Jamie).
arxiv.org/abs/2405.06016
1/n
Always a pleasure to work with @8minutesold, @Heesters_N, and the amazing team in @AIP_Potsdam. 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.
Another new paper, lead by my @AIP_Potsdam PhD student Jamie Kanehisa (with @VoltarCH).
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
🧵
Oliver Müller, Ph.D. retweeted
Another new paper, lead by my @AIP_Potsdam PhD student Jamie Kanehisa (with @VoltarCH).
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
🧵