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Veronika Dornan

@dornanv.bsky.social
261 followers 105 following 15 posts

🔭 Post-doctoral research associate at The University of Edinburgh studying extragalactic globular star clusters (she/her) dornanv.github.io/

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Reposted by Veronika Dornan
Astrobites @astrobites.bsky.social · 15/09/2026
From @dornanv.bsky.social: 700 years of astronomical progress is currently being laid out on the tables of the library of the Royal Observatory of Edinburgh. Join Astrobites for a glimpse into the process! ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/09/11/crawford-collection/
astrobites.org
An Afternoon in The UK’s Most Extensive Astronomical Library
700 years of astronomical progress is currently being laid out on the tables of the library of the Royal Observatory of Edinburgh. Join astrobites for a glimpse into the process!
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Reposted by Veronika Dornan
Astrobites @astrobites.bsky.social · 26/04/2026
From @dornanv.bsky.social: Recently the world has been entertained and inspired by Project Hail Mary and the Artemis II mission, so let’s compare some real and fictional space missions over the decades. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/04/24/fthe-space-odyssey-and-the-space-mission/
astrobites.org
From Screen to Sky: The Space Odyssey and The Space Mission
Recently the world has been entertained and inspired by Project Hail Mary and the Artemis II mission, so let's compare some real and fictional space missions over the decades.
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Veronika Dornan @dornanv.bsky.social · 25/04/2026
Thinking about how I explained the moon landing to a bunch of 6 yos for the first time and said "it was basically a more complicated camping trip" ... week long road trip with your friends, sleeping bags, freeze dried food, a lil hike, and they brought back cool rocks? All checks out.
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Veronika Dornan @dornanv.bsky.social · 28/03/2026
As an astronomer who also owns many bad science joke-based t-shirts, I felt very represented in project hail mary ... but in another world we could have also been treated to Ryan Gosling repping the Canadian Astronomy Data Centre, and I choose to believe this is in the director's cut!
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Veronika Dornan @dornanv.bsky.social · 13/02/2026
I'm losing my mind over here ... please go read this white paper if you haven't yet (even if acrobat would like to save you the mental effort): arxiv.org/abs/2602.10181
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Reposted by Veronika Dornan
Astrobites @astrobites.bsky.social · 04/02/2026
From Veronika Dornan @dornanv.bsky.social : Can galaxy interactions help young and old stars in spiral arms get to know each other? These authors’ simulations may have an answer! ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/02/02/a...
astrobites.org
How Galaxy Mergers Can Bridge The Stellar Age Gap in Spiral Arms
Can galaxy interactions help young and old stars in spiral arms get to know each other? These authors' simulations may have an answer!
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Reposted by Veronika Dornan
Astrobites @astrobites.bsky.social · 19/01/2026
From Veronika Dornan @dornanv.bsky.social : Reticulum II? More like Reticulum TWO distinct periods of star formation! Or at least that’s what new spectroscopic observations indicate. ⚛️🔭☄🧪 astrobites.org/2026/01/17/r...
astrobites.org
Back for Seconds: Evidence of Two Bursts of Star Formation in an Ultra-Faint Dwarf Galaxy
Reticulum II? More like Reticulum TWO distinct periods of star formation! Or at least that's what new spectroscopic observations incdicate.
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Reposted by Veronika Dornan
Astrobites @astrobites.bsky.social · 28/11/2025
From Veronika Dornan @dornanv.bsky.social : Like a bouncer at a nightclub, JWST is trying to figure out if some star clusters are really as old as they say they are… ⚛️🔭☄🧪 astrobites.org/2025/11/25/s...
astrobites.org
Astronomers Hate Them! This Star Formation Ingredient Makes Clusters Look 300 Million Years Older
Like a bouncer at a nightclub, JWST is trying to figure out if some star clusters are really as old as they say they are ...
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Reposted by Veronika Dornan
Astrobites @astrobites.bsky.social · 17/10/2025
From Veronika Dornan @dornanv.bsky.social : You really have to tip your hat to the authors of today’s bite, who closely studied the dynamics and metallicities of the globular clusters of M104. 🔭✨☄️ astrobites.org/2025/10/16/m...
astrobites.org
Hats Off to a Spectroscopic Study of Sombrero Galaxy Globular Clusters
You really have to tip your hat to the authors of today's bite, who closely studied the dynamics and metallicities of the globular clusters of M104.
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Veronika Dornan @dornanv.bsky.social · 07/09/2025
Me studying for comps
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Reposted by Veronika Dornan
Astrobites @astrobites.bsky.social · 02/09/2025
From Veronika Dornan @dornanv.bsky.social : It’s an itty bitty teeny weeny ultra faint dwarf galaxy-ni! Today’s bite talks about the discovery of the faintest galaxy in the Andromeda system! 🔭✨☄️ astrobites.org/2025/09/01/p...
astrobites.org
Do You Have This Andromeda Galaxy in Extra-Extra-Extra Small?
It's an itty bitty teeny weeny ultra faint dwarf galaxy-ni! Today's bite talks about the discovery of the faintest galaxy in the Andromeda system!
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Reposted by Veronika Dornan
Astrobites @astrobites.bsky.social · 24/07/2025
From Veronika Dornan @dornanv.bsky.social : You know the saying: “when gas-rich galaxies collide, young massive star clusters will soon reside” … well maybe you’ll know the saying after reading this astrobite! 🔭✨☄️ astrobites.org/2025/07/23/y...
astrobites.org
Galactic Smashes and Stellar Crashes: Forming Dense Star Clusters
You know the saying: "when gas-rich galaxies collide, young massive star clusters will soon reside" ... well maybe you'll know the saying after reading this astrobite!
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Veronika Dornan @dornanv.bsky.social · 02/06/2025
Thanks! Extragalactically this is very hard on a GC-by-GC basis, but within the Milky Way where we have dynamical and chemical information we have actually already mapped out a lot of our galaxy's merger tree! You may be interested in this astrobite on the topic: astrobites.org/2021/05/04/g...
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Veronika Dornan @dornanv.bsky.social · 02/06/2025
The big takeaway: galaxy mergers can affect GC systems and in turn studying GC systems can help us study galaxy evolution. Major mergers can noticeably affect the properties of galaxies' GC systems and where they sit on scaling relations. #extragalactic #astronomy
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Veronika Dornan @dornanv.bsky.social · 02/06/2025
In addition, that correlation was driven by the *red* GCs specifically, the blue GCs didn't have the same correlation. Since red GCs tend to be formed in massive galaxies and blue GCs in smaller satellites, this result is likely driven by a few major galaxy mergers rather than many minor mergers.
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Veronika Dornan @dornanv.bsky.social · 02/06/2025
When comparing the steepness of those GC system profiles to where the galaxies sit on the GC system mass - total galaxy mass relation we found that the steepness of those GC system profiles correlated to how offset their host galaxies were on that relation.
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Veronika Dornan @dornanv.bsky.social · 02/06/2025
For 16 of these galaxies we had colour information and could determine the profiles for the red and blue GCs separately. As expected, the red GCs tend to have steeper profiles and the blue GCs tend to have shallower profiles.
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Veronika Dornan @dornanv.bsky.social · 02/06/2025
We determined the globular cluster (GC) radial density profiles for 27 brightest cluster galaxies (BCGs) from Hubble photometry. These are massive systems, hosting 1,000s to 10,000s of GCs!
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Veronika Dornan @dornanv.bsky.social · 02/06/2025
My paper is on arXiv today! arxiv.org/abs/2505.24154 The big headline: brightest cluster galaxies with more shallow radial distributions of their *red* GC systems have higher GC system mass / total mass ratios, likely due to early, major mergers with other massive elliptical galaxies!
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Veronika Dornan @dornanv.bsky.social · 15/05/2025
If I were writing my thesis in days of yore I would be buried under piles of books and papers and people would see me and go "wow poor thing, she's in the thick of it, I have to get her a coffee" but now they just walk past my overheating laptop with 50 tabs open, unaware, and I have no coffee :^(
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Reposted by Veronika Dornan
Astrobites @astrobites.bsky.social · 04/05/2025
From Veronika Dornan @dornanv.bsky.social : How do you distinguish between home-grown and imported stars in the Milky Way? You use the Gaia space observatory, of course! 🔭✨☄️ astrobites.org/2025/05/02/cocytos/
astrobites.org
Testing The Waters: Determining The Origin of The Cocytos Stream
How do you distinguish between home-grown and imported stars in the Milky Way? You use the Gaia space observatory, of course!
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Reposted by Veronika Dornan
Astrobites @astrobites.bsky.social · 16/04/2025
From Veronika Dornan @dornanv.bsky.social : BANG! That’s the sound of a new study of the Bullet Cluster that digs deep into where the system’s dark matter is and what properties it may have. 🔭✨☄️ astrobites.org/2025/04/15/jwst-bullet-cluster/
astrobites.org
NCIS JWST: Analyzing The Aftermath of The Bullet Cluster’s Collision
BANG! That's the sound of a new study of the Bullet Cluster that digs deep into where the system's dark matter is and what properties it may have.
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Veronika Dornan @dornanv.bsky.social · 14/03/2025
I'm an astronomy PhD student
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Veronika Dornan @dornanv.bsky.social · 07/03/2025
yes
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Veronika Dornan @dornanv.bsky.social · 07/03/2025
@bot.astronomy.blue signup
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Reposted by Veronika Dornan
Astrobites @astrobites.bsky.social · 06/03/2025
From Veronika Dornan @dornanv.bsky.social : All dark matter, no stars? Is that even possible? That’s just what these authors are trying to determine in today’s article! 🔭✨☄️ astrobites.org/2025/03/06/c...
astrobites.org
A Long, Hard Look at (Potentially) Nothing to See
All dark matter, no stars? Is that even possible? That’s just what these authors are trying to determine in today’s article!
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Reposted by Veronika Dornan
American Astronomical Society (AAS) @aas.org · 30/09/2024
🆕 Veronika Dornan & Bill Harris (McMaster University) chat with Frank Timmes about their article on radial density profiles: www.youtube.com/watch?v=kmmC... The goal of AAS Journal Author Series is to connect authors with their article, their human story & the larger #astronomy community. 🔭
youtube.com
AAS Journal Author Series: Veronika Dornan and Bill Harris on 2024AJ....168...48D
YouTube video by AAS
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