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isak

@isakndbr.bsky.social
219 followers 125 following 79 posts

your friendly neighbourhood open cluster enthusiast| galactic archeology & mapping | he/him

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isak @isakndbr.bsky.social · 02/05/2026
so cool!!
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sanjana! @sanjanacurtis.bsky.social · 13/03/2026
I think it’s cool that some people focus on curing disease and some people focus on understanding what animals are up to and some people think about our place in the universe and how things came to be the way they are. People are driven by curiosity and I promise you you don’t want it any other way
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isak @isakndbr.bsky.social · 13/03/2026
they just wanna know where they come from
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isak @isakndbr.bsky.social · 11/12/2025
really cool work Alexis!!
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Alexis Quintana @alexis-space.bsky.social · 08/12/2025
A new census of OB associations with Gaia! In this study, we took advantage of my OB stars map to find new OB associations within 1 kpc. The goal was to create a useful reference catalogue for this era, and to trace the star formation and structure of the local Milky Way. #stellarastro #galactic
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Emily Hunt @emily.space · 09/12/2025
New paper led by Fabian Polnitzcky & with @sratzenboeck.bsky.social + @joaoalves.bsky.social: based on the ages of stars with infrared excess in Sco-Cen, it seems planet-forming disks last around twice as long as previous estimates suggest - giving twice as long for planets to form. 🔭☄️ #exoplanets
Their input source selection in the Sco-Cen region, showing stars with (blue) and without (orange) disks.The fraction of young stars with disks as a function of age, based on three different selection methods. All show that many stars appear to have disks to ages well beyond ~10 million years, with a median lifetime of ~5 million years!
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Emily Hunt @emily.space · 22/10/2025
Simulating accurate observations of star clusters is really annoying! So as a part of this paper, we open sourced all of the code we used to simulate them, and there's a Python notebook that explains how to do it right here: 🔭☄️ #galactic #astrocode
ocelot-docs.org
Simulate a cluster with ocelot - ocelot
A toolbox for working with observations of star clusters.
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Alexis Quintana @alexis-space.bsky.social · 25/09/2025
A great paper led by Josefa Großschedl has a appeared on arxiv this morning! A detailed study on the velocity dispersion of the subgroups of Sco-Cen, the nearest OB association. The expansion of the complex is driven by stellar feedback, engendering a sequential star formation process. #astronomy
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isak @isakndbr.bsky.social · 19/09/2025
but those we can find are worth looking for ☝️🙂‍↕️
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Luke Bones 🦴🦴 @lukemeister.bsky.social · 16/09/2025
Gargantuan Gaia review by Michael Perryman "271 pages, 126 figures, accepted for publication in Physics Reports" arxiv.org/abs/2509.10883
Figure 16: Sky projections, in Galactic coordinates, showing various properties of the Gaia DR3 data release (see text for details).
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Stellar Origins 2025 @ Vienna @stellarorigins2025.bsky.social · 13/08/2025
Just about a month until we kick off "Stellar Origins" in Vienna! 👀 Until then, we'll keep you updated here with news on the scientific program and some sneak peeks of what else we have planned for you! Stay tuned and tell your friends! #stellarorigins2025
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isak @isakndbr.bsky.social · 11/08/2025
weaponized avoidance
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isak @isakndbr.bsky.social · 29/07/2025
prioritätenliste machen die man dann trotzdem net einhält >>>>
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Alexis Quintana @alexis-space.bsky.social · 22/07/2025
An exciting paper has appeared today, led by Lily Kormann from the University of Vienna! With the extinction map from Edenhofer et al. (2024), they discovered seven local superclouds, only two of which, The Radcliffe Wave and The Split, were already known! #galactic arxiv.org/abs/2507.14883
arxiv.org
The Superclouds of the Local Milky Way
Recent 3D dust maps of the local Milky Way are revolutionizing our understanding of the Sun's Galactic neighborhood, bringing much-needed insight into the large-scale organization of the interstellar ...
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isak @isakndbr.bsky.social · 07/07/2025
🎉🎉🎉🎉
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Emily Hunt @emily.space · 24/06/2025
How many open clusters could be hiding at the edge of our galaxy? 🔭☄️🧪 #galactic Our new paper out today (A&A, accepted) pioneers a new way to test the completeness of cluster catalogues built with @esa.int's Gaia mission!
The fraction of simulated clusters we recover (upper panel) compared against a dust map (lower panel.) Dust is clearly a major hindrance to seeing open clusters with Gaia.The detectability of young clusters (upper panel) and old clusters (lower panel) in the anticentre of our galaxy. Grey points show real clusters. It's clear that there's a huge void where we're not sensitive enough to say if there are more old clusters.The detectability of old clusters, shown a different way. The two most distant catalogued clusters in the anticentre (Saurer 1 & Berkeley 29) appear to simply be lucky detections, as they sit in a small (not so reddened) part of the anticentre.General trends in cluster detectability in the region as a function of various parameters. Mass, age, extinction, and distance are the biggest culprits.
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isak @isakndbr.bsky.social · 21/06/2025
favorite part of the day when the badgers come out and make noise outside of my window and I get to watch them snack on raspberries
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isak @isakndbr.bsky.social · 16/04/2025
🫥👎
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isak @isakndbr.bsky.social · 15/04/2025
also would love to get diagnosed with a cluster 🤲
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Emily Hunt @emily.space · 04/04/2025
An interesting #galactic paper by Cameren Swiggum (@mac0598.bsky.social) et al. came out today! ☄️🧪 Extending previous work that showed most young star clusters near to the Sun came from just three regions, Cameren shows that actually *all* nearby clusters come from just three regions!
Backwards orbital integration of star clusters near the Sun in their work. Notice how all the grey dots originate in three areas. (Their Fig. 1)
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isak @isakndbr.bsky.social · 26/03/2025
Cool paper out by Juan D. Soler et al! They looked at the line-of-sight motion of the ISM based on 3D dust maps, HI and CO line emission, creating several maps of how the dust and gas in our solar neighborhood move! 🔭🧪 www.aanda.org/articles/aa/...
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Paul McMillan @mcmillan-astro.bsky.social · 24/03/2025
I'm not sure I'm emotionally prepared to say goodbye to Gaia. This video, shared by @esa.int, is the spacecraft fading from view for the final time. It's still alive, but will be switched off on Thursday. 🔭 www.youtube.com/watch?v=-NGh...
youtube.com
Final goodbye to Gaia from China
YouTube video by ESA Gaia Mission
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isak @isakndbr.bsky.social · 21/03/2025
not to be italian on main but if lewis turns that pole into a win i'll revert to catholicism
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isak @isakndbr.bsky.social · 15/03/2025
happy ides of march to those who celebrate
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Max-Planck-Institut für Astronomie @mpi-astro.bsky.social · 14/03/2025
New result from MPIA: Two of our astronomers have taken a look at just how "dirty" our window into deep space is, concretely: they have mapped the properties of dust out there in the Milky Way, including how that dust absorbs light. www.mpia.de/news/science...
mpia.de
Astronomy’s dirty window to space
Astronomers from the Max Planck Institute for Astronomy have constructed the first detailed 3D map of the properties of cosmic dust in our home galaxy.
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isak @isakndbr.bsky.social · 03/03/2025
this part
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isak @isakndbr.bsky.social · 01/03/2025
never underestimate what a little spring hike in the mountains can do for your mental sanity!
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Emily Hunt @emily.space · 25/02/2025
Interesting paper out today by Efrem Maconi, @joaoalves.bsky.social et al.! They find that the Sun probably passed through a massive wave of interstellar dust and gas (the Radcliffe wave) around 11 to 18 million years ago. 🔭🧪 #milkyway #planetsci arxiv.org/abs/2502.16360
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isak @isakndbr.bsky.social · 06/02/2025
as much as I like to complain about austrian trains they popped off with the nightjets
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isak @isakndbr.bsky.social · 06/02/2025
trans icon 🏳️‍⚧️🏳️‍⚧️
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isak @isakndbr.bsky.social · 05/02/2025
stop 👏 putting 👏clusters 👏 in 👏 boxes 👏
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Emily Hunt @emily.space · 31/01/2025
This is SUCH bullshit - so so frustrating that even factual phrases like "Science is still a male-dominated field" now have to be scrubbed from anything federally funded... 🔭
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isak @isakndbr.bsky.social · 30/01/2025
a rubber room with rats?
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isak @isakndbr.bsky.social · 29/01/2025
looking through old plots and stumbled over an ominous cluster cmd that has written 'they put me in a room' on it in the minecraft font that i have absolutely no memory of making
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isak @isakndbr.bsky.social · 12/01/2025
yes!! one of my favorite things about Gaia is how much effort went into making the data accessible, from the data products to community developed tools to workshops/tutorials. Such an incredible community
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Star Cluster Memes For Stellar Overdensity Teens @starcluster.meme · 03/01/2025
can't believe we only know ~5% of them 😭
A very chaotic meme with many speech bubbles around a person with the caption "I just need to find all the open clusters"
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isak @isakndbr.bsky.social · 27/12/2024
that is also why I dont see it as something that will replace art or photography, simply because it is unable to create something new
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isak @isakndbr.bsky.social · 27/12/2024
my main point was the following: art, photography are media, that we use to express ourselves. Even if it just snapping a profile picture, there are choices of color grading, lighting, etc. AI art is of completely different nature, it has nothing to do with originality or creativity
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isak @isakndbr.bsky.social · 27/12/2024
well idk about you but in my family and community we still mostly do story telling by mouth to mouth. Books are keeping records of some things but not all, especially family histories, etc are rately written down.
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isak @isakndbr.bsky.social · 27/12/2024
my friend that is not how it works. That is the equivalent of saying that history books replaced mouth-to-mouth story telling. Human creativity and expression is part of who we are and how we interact with each other
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isak @isakndbr.bsky.social · 26/12/2024
venus slander! :|
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isak @isakndbr.bsky.social · 18/12/2024
🔭
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isak @isakndbr.bsky.social · 16/12/2024
with @lillykormann.bsky.social working on Gaia.2, able to get to nano arcseconds precision
gingerbread gaia satellite being decorated with icing
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isak @isakndbr.bsky.social · 10/12/2024
have you tried restarting the kernel
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isak @isakndbr.bsky.social · 08/12/2024
hmm 🤔🤔
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isak @isakndbr.bsky.social · 07/12/2024
Connecting different scales of SF and molecular cloud structure poses still many open questions. I propose the HPM (Hierarchical Pasta Model), connecting molecular gas at galactic scales to the smallest scales. Bigger baseline, 37 min of observation time + a redbull are needed. Fig: adapt. Hacar23
Fig: Adapted from Hacar+2023,  arXiv:2203.09562
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isak @isakndbr.bsky.social · 03/12/2024
:( dont say that
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isak @isakndbr.bsky.social · 30/11/2024
cluster person with a cat🫵 youre literally so cool!!
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isak @isakndbr.bsky.social · 28/11/2024
like a little zipper! love your visualisation!!
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