William Thompson
@AstroWrtHerzberg Fellow at the NRC Herzberg Astronomy and Astrophysics. Exoplanets, direct imaging instruments, and stats tools. #julialang enthusiast.
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Announcing Octofitter (🐙), an ambitious tool for all kinds of exoplanet orbit modeling workflows: fit planet orbits to relative astrometry, proper motion anomaly, radial velocity, images, and more! [1/7] sefffal.github.io/Octofitter.jl/…
Congrats Alexandre and Trevor! Their work is already having impacts in astronomy, from black holes 🕳️ to exoplanets 🪐!
@UBCStatistics Profs. Alexandre Bouchard-Côté & Trevor Campbell, along with collaborators from UdeM & SFU, are leading a CANSSI CRT project on distributed MCMC methods. Funded grad student positions available in Bayesian stats & computational methods: bit.ly/3YOaztn
@UBCStatistics Profs. Alexandre Bouchard-Côté & Trevor Campbell, along with collaborators from UdeM & SFU, are leading a CANSSI CRT project on distributed MCMC methods. Funded grad student positions available in Bayesian stats & computational methods: bit.ly/3YOaztn
We were over the moon to share our upcoming SPIDERS instrument with @csa_asc astronaut @Astro_Jenni today at @NRC_CNRC While we take photos of other worlds, astronauts like Dr. Gibbons may actually walk on one!
expect the expected: our observations of the directly imaged planet AF Lep b with optical interferometry revise the planet's orbit and composition. both indicate unbothered formation within a disk via core accretion. arxiv.org/abs/2411.05917
Oh and by the way, here’s a tutorial on how to compare 1 vs. 2 planet models by calculating the full Bayesian evidence, in just five minutes flat: sefffal.github.io/Octofitter.jl/… Turns out nested sampling isn’t the only way to do this!
Version 5 of Octofitter released today! (there's nothing else big going on in the news, right?) I call this the "RV release", since there are across-the-board improvements to RV modelling performance and new features. 1/3
Sun glint off the Mediterranean Sea (infrared and converted to black and white). When the sun reflects off the ocean, watery details unseen with normal lighting shows up. Small centimeter differences in ocean height become visible, revealing hidden currents. Here, naturally…
Turns out the 51 Peg b application has specific formatting requirements and a 2 page CV limit. Something about furiously deleting accomplishments with 2 minutes to spare really helps put things in perspective…
I have to say I am having too much fun playing with @AstroWrt's Octofitter! PairPlot is such a joy!
I missed this last week, but congrats to the orbitize! team (@SarahCBlunt and co) on v3 and the new JOSS paper! joss.theoj.org/papers/10.2110…
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Richard McElreath 🦔
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