Hugh McDougall Astro
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hughmcd-astro.bsky.social
Hugh McDougall Astro
@hughmcd-astro.bsky.social
Hi, I’m Hugh! I'm an astronomy PhD student at the University of Queensland. I work in Bayesian stats, JAX + NumPyro, doingreverberation mapping of active galactic nuclei with OzDES

Website: https://hughmcdougall.github.io
ORCiD: 0009-0008-5846-1543
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Importance Sampling (recycling posterior samples) has a reputation as crude brute force, but this underappreciated method can be a surprisingly powerful tool in many practical cases. Find my new article about the importance of importance sampling here: 🔭
hughmcdougall.github.io/blog/03_stat...
August 12, 2025 at 11:55 PM
Call me old fashioned but sometimes my python IDE questions my grammar choices and frankly I think it should mind its own business
August 6, 2025 at 3:02 AM
Everytime I read LVK my brain tells me it stands for Ligo Virgo Kirgo

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June 10, 2025 at 11:53 PM
🔭 Excited to be starting my 3 month visiting research placement at @monashastro.bsky.social working on some numerical specifics in GW population fitting!
June 10, 2025 at 9:16 PM
🔭 It's called bluesky because of Rayleigh Scattering.
June 5, 2025 at 3:49 AM
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"I don't know why so many grad students have imposter syndrome. Where does the fear of failure come from?"

Meanwhile, in the arXiv submission form:
May 30, 2025 at 5:44 AM
Reposted by Hugh McDougall Astro
Watch the solar plasma curve along magnetic field lines like iron filings near a bar magnet. #stellarastro 🧪🔭

This work was funded in part by NSF.
May 29, 2025 at 2:19 AM
You might have heard of the cool chaotic patterns you get from the logistic map, including the islands of stability that appear at certain values of 'r'.

Here's a fun animation of a different recursion relation that bounds the output as we change the itteration gain, wrapped around a polar axis.
May 27, 2025 at 7:19 AM
Wild that Adobe's forced AI features means that you can open a program called "pdf reader", and then be inflicted with a popup asking if you'd like to not read a pdf
May 26, 2025 at 6:41 AM
🔭 You've got two sets of data: can you combine them, or are the in tension? How do you know?

Answer: the Bayesian suspiciousness statistic! This blog (+examples) shows how you can consistently tell if two data sets are in tension with a full Bayes approach!

hughmcdougall.github.io/blog/03_stat...
May 26, 2025 at 4:51 AM
🔭If you work in stats you've probably heard of nested sampling: MCMCs fancy cousin. Enough people have asked me how it works that I've written an article (including examples!) explaining:
1. What NS is
2. Why we need it over MCMC
3. How to know if it's working
hughmcdougall.github.io/blog/03_stat...
May 25, 2025 at 6:47 AM
Extremely excited to announce the first paper / project of my PhD: LITMUS – a new Bayesian framework for reverberation mapping lag recovery! The paper is on arXiv at arxiv.org/abs/2505.09832, or you can find the code at hughmcdougall.github.io/litmus/ and the docs at hughmcdougall.github.io/litmus/
May 16, 2025 at 10:12 AM
For my first post on bluesky, I present to the world an astronomer friendly guide to taking your first steps with #NumPyro:
hughmcdougall.github.io/blog/02_nump...
February 24, 2024 at 3:14 AM