William Thompson

482 posts

William Thompson banner
William Thompson

William Thompson

@AstroWrt

Herzberg Fellow at the NRC Herzberg Astronomy and Astrophysics. Exoplanets, direct imaging instruments, and stats tools. #julialang enthusiast.

Victoria, B.C., Canada Katılım Ocak 2020
373 Takip Edilen673 Takipçiler
Sabitlenmiş Tweet
William Thompson
William Thompson@AstroWrt·
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/…
William Thompson tweet mediaWilliam Thompson tweet media
English
2
20
114
15.1K
William Thompson retweetledi
Seven Rasmussen
Seven Rasmussen@toomanyspectra·
fun fact: the human body contains 400 AU of DNA
English
0
1
5
276
William Thompson retweetledi
Phil Armitage
Phil Armitage@philip_armitage·
New paper! In work led by Sabina Sagynbayeva we quantify mission and ancillary data (RV, astrometry) requirements that enable "full system" (terrestrial AND giant planets) characterization with the Habitable Worlds Observatory. arxiv.org/abs/2507.21443
Phil Armitage tweet media
English
0
6
26
3.1K
William Thompson
William Thompson@AstroWrt·
@wsmoses @MilesCranmer Great to hear! I’ll make sure to test out the latest versions. I will say that those issues aside, the performance from Enzyme seems totally unmatched by any other package, so I do use it personally even when I haven’t yet recommended it to users directly.
English
0
0
1
54
Billy Moses
Billy Moses@wsmoses·
@AstroWrt @MilesCranmer Unfortunately a lot of those errors are out of Enzyme.jl's control (and often error's in Julia's GC itself that are only hit for fast code, indep of Enzyme). That said we got all that I know of fixed in the latest releases so I'm curious if you still hit any
English
1
0
0
79
Miles Cranmer
Miles Cranmer@MilesCranmer·
I am a HUGE fan of Mooncake.jl github.com/chalk-lab/Moon…, a new language-level autodiff for Julia. Most impressive is how uncompromising the devs are about correctness and reliability. It has some of the best software engineering practices I’ve seen in the entire ecosystem!
Miles Cranmer tweet media
English
4
8
98
6.9K
William Thompson
William Thompson@AstroWrt·
@MilesCranmer This has been my experience with Enzyme too! I can get it working well for myself but I’m not sure I trust it enough to roll out to others.
English
1
0
0
107
Miles Cranmer
Miles Cranmer@MilesCranmer·
@AstroWrt It's much wider coverage than Zygote though, which can't differentiate in-place ops. Enzyme is probably the most general. Though I always seem to generate new segfaults in Enzyme (likely from my own misuse!) so I've never been able to use it reliably.
English
1
0
0
242
William Thompson retweetledi
Peyman Milanfar
Peyman Milanfar@docmilanfar·
A surprising & little-known results in classical statistics: Mean (μ) and median (m) are within one std deviation: |μ−m| ≤ σ For unimodal densities, bound is even tighter |μ−m| ≤ 0.7746 σ This beautiful results first appeared in a 1932 paper by Hotelling & Solomons 1/3
Peyman Milanfar tweet media
English
27
187
1.5K
153.1K
William Thompson retweetledi
Hajime Kawahara
Hajime Kawahara@Hajime_dxdydz·
Our paper on a differentiable spectral model, ExoJAX2, has been accepted by ApJ. In this paper, we use HMC-NUTS to analyze JWST’s native-resolution transmission, high-dispersion spectra of a brown dwarf from Subaru, and Jupiter’s reflected light. arxiv.org/abs/2410.06900 1/N
Hajime Kawahara tweet media
English
1
5
11
851
William Thompson
William Thompson@AstroWrt·
Just learned that am being awarded the J. S. Plaskett medal for most outstanding doctoral thesis in astronomy in Canada. Thank you @AstroCanada, and my committee & @PHASTatUVIC for the nomination!
English
7
3
30
1.2K
William Thompson retweetledi
Dr Jake Taylor
Dr Jake Taylor@AstroJake·
Taking my glasses off when I get home after a long day because I’ve seen enough
English
0
1
5
464
William Thompson retweetledi
Canadian Heritage
Canadian Heritage@CdnHeritage·
The Flag That Unites Us. Happy #FlagDay! 🇨🇦
English
373
1.7K
6.6K
734.9K
William Thompson retweetledi
Falk Herwig
Falk Herwig@fherwig·
Researchers from UVic’s Astronomy Research Centre used the James Webb Space Telescope to captured a rare glimpse of how young planets are forming. This groundbreaking discovery reveals how planets compete with their host star for material shorturl.at/Ei7Fh @ArcUvic #JWST
English
0
1
5
129
William Thompson retweetledi
the human anachronism™️
the human anachronism™️@FullAsMuchHeart·
Just saw someone saying using the em-dash is a sign of something being written by AI, because real people rarely use it. This is terrible news for everyone like me who has an unhealthy emotional attachment to the em-dash.
English
839
12.9K
95.9K
2.7M
William Thompson retweetledi
Andrew McCarthy
Andrew McCarthy@AJamesMcCarthy·
Load in 4k to spot the ISS
Andrew McCarthy tweet media
English
617
2.8K
39.9K
4.2M