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Payel Das

@payeldas

Surrey astrophysicist. Understanding the formation history of our Milky Way through dynamics and chemistry. Talk about papers on the Starxiv.

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31.10.2024
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Latest posts by Payel Das @payeldas

It's definitely not perfect but hopefully a good start!

04.03.2026 14:10 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Went to a fun workshop today ran by @niftyfoxcreative.bsky.social about how to optimise using AI for creative tasks. We put together a design brief for creating an infographic for a research paper and I eventually got this. I like it! You can find out more at academic.oup.com/mnras/articl....

04.03.2026 14:07 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Episode 31 – Near Earth Objects, Little Red Dots, bursty star formation and life around massiveΒ stars In this podcast episode, Michelle and Payel discuss theories on little red dot formation, bursty star formation, and the origins of asteroids like Apophis. They also discuss the potential for life around massive stars and unusual triple-double radio galaxies.

Episode 31 – Near Earth Objects, Little Red Dots, bursty star formation and life around massiveΒ stars

In this podcast episode, Michelle and Payel discuss theories on little red dot formation, bursty star formation, and the origins of asteroids like Apophis. They also discuss the potential for life…

02.03.2026 06:12 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Our latest episode is live! Tune in to hear about where the Apophis asteroid came from, bursty star formation at high redshift, truple-double radio galaxies and more! Available below and wherever you get your podcasts πŸ”­ β˜„οΈ

02.03.2026 08:00 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 1

This is why we love doing Starxiv! Definitely one of the coolest objects that I had never heard about.

04.03.2026 14:03 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Can help but love such a simple model to explain the MUV-M* observations.

04.03.2026 14:03 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I was amazed that the Habitable Zone makes a comeback post Main Sequence.

04.03.2026 14:02 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Another exciting theory to explain Little Red Dots!

04.03.2026 14:01 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Career Development Fellowship in Astrophysics

Here’s the link: www.chch.ox.ac.uk/vacancies/ca...

03.03.2026 15:57 πŸ‘ 9 πŸ” 9 πŸ’¬ 2 πŸ“Œ 0

Let's hope those calculations are accurate!

04.03.2026 13:59 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I'm very excited to announce a PhD position that will be supervised by Eugene Vasiliev and myself on the dynamical modelling of barred galaxies. Check it out!

03.03.2026 09:28 πŸ‘ 9 πŸ” 2 πŸ’¬ 0 πŸ“Œ 1

I like this theory too! It's like watching a very slow release Netflix series...

19.02.2026 17:41 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Paper time! @amerygration.bsky.social develops a general method for constructing the joint mass function of a stellar population that hosts binary stellar systems. And no it's not the same as the initial mass function!

18.02.2026 17:22 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I love that we're pushing back major epochs of galaxy evolution further back in time!

18.02.2026 13:50 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I couldn't helping thinking that we're possibly uncovering the merger history of GSE itself from its chemical abundances?

18.02.2026 13:49 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Chatted about this again over lunch with Surrey Astro! Very exciting paper.

18.02.2026 13:48 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Really interesting result here that the faint tidal tails tell us most about merger activity.

18.02.2026 13:47 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

My favourite statistic from this week's podcast - JWST sees 100,000 galaxies in the area spanned by the moon!

18.02.2026 13:45 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

JWST and machine-learning are definitely recurring favourites!

18.02.2026 13:44 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Recovery of total mass profile, dark matter mass profile, and flattening of the dark matter halo with 3D phase-space information.

Recovery of total mass profile, dark matter mass profile, and flattening of the dark matter halo with 3D phase-space information.

Excited about the latest paper with collaborators! We find that in the case of missing phase-space coordinates, equilibrium dynamical models can recover the mass distribution and inclination of disc galaxies well but not the dark matter halo flattening! Find out more at arxiv.org/abs/2511.10445.

14.11.2025 09:10 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Episode 22 is out!!! With a Tolkien theme πŸ˜‚

13.10.2025 10:17 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Just coming back from holiday and didn’t check arxiv? Absolutely no worries. Catch up on Starxiv! Episode 20 being recorded very soon.

08.09.2025 07:33 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Episode 18 is being recorded later today and for the first time I’ll be a listener! Excited to sit back and catch up with the papers I missed whilst in China.

15.08.2025 01:21 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Finding it tricky to keep up with the arxiv over the summer between holidays and childcare? Let @runningastronomer.bsky.social and i help you out with @starxiv.bsky.social!

11.08.2025 02:30 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 1
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Episode 17 has dropped! Tune in to hear Payel & Michelle talk about about a dark matter subhalo detection, the problem(s) with super massive black holes, massive star clusters in the Sparkler, speedy white dwarfs and more! πŸ”­β˜„οΈ starxiv.com/2025/08/04/e...

04.08.2025 07:00 πŸ‘ 11 πŸ” 3 πŸ’¬ 1 πŸ“Œ 4

In short, dynamical processes don’t quite do enough. Have we massively under-predicted the lensing effect?

05.08.2025 07:45 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

A neat little explanation to tie some JWST loose ends.

05.08.2025 07:44 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Some beautiful new artwork to help you listen to the Starxiv!

04.08.2025 08:07 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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What’s better than passing time on the train catching up on arxiv papers?

30.07.2025 09:40 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Catching up with papers after a week’s worth of work travel. It’s going to take a whileβ€¦πŸ˜³

17.07.2025 08:46 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0