#exoplanets #jobs 📣
I'm advertising for a postdoc! Come work with me in sunny SoCal on the Roman Galactic Exoplanet Survey Project Infrastructure Team. You'll help build the pipeline for Roman* occurrence rates.
*Launches NEXT YEAR!
Please RT & share with your networks!
aas.org/jobregister/...
I'm co-chairing the Atmospheres, Climate, and Potential Habitability of Rocky Exoplanets II and III Oral sessions tomorrow afternoon from 14:10-17:30 with our fearless leader @offallingstars.bsky.social, Daniel Koll, and @lavainspace.bsky.social at #AGU24. Please come find us in Liberty N-P!
This looks super cool! Will definitely give a detailed read — how much “tuning” did you have to do to make this Astro-specific?
Oo tables is a great one! I haven’t fully played around with file upload yet. Neat tip!
PhD Advertisement!
4-yr PhD position as part of the EPSRC Aerosols CDT to work with me and Prof Jonathan Reid at Bristol on Laboratory experiments to measure the Optical Properties of Silicate aerosols for applications to exoplanet atmospheres.
See Application instructions and details via link
I haven’t been able to get LLMs into my writing workflow — they don’t do snappy titles 😔 plus I don’t know how I feel about AI in that context yet!
To kickstart things: For myself, I quite like getting quick, hand-wavy physical intuition for new concepts with LLMs. I also like using IDE tools to generate docstrings as I code. Nothing mission-critical, no calculations, and generally stuff I can easily verify.
🔭🧪 Astronomers! Physicists! If you use AI in your research, how do you use it? Some examples:
- proposal writing
- debugging
- code writing
- code documentation
- (astro)physics explanations
- solving (astro)physics problems
Yes please! This is super neat!
Thanks as always to excellent collaborators (@megbedell.bsky.social, @exoplanetpete.bsky.social, and others). Check out the paper for full details! Submitted to AJ and gladly taking comments.
Finally, I want to highlight our code (github.com/arjunsavel/s...). There are excellent tools for simulating, e.g., JWST data; it’s much harder to do the same for high-res data. We hope to make proposal-writing, theorizing, and sandboxing more easy and robust. Accepting brave beta testers now :)
Our results also show spurious signals at detection significances of up to SNR~4.5. Perhaps keep this in mind as you’re interpreting your signals!
We found that inferences can be biased by limiting-case, strongly varying tellurics. Why? Telluric-removal methods, like PCA, generally assume static telluric spectra. Time-variable signals are therefore left as residuals, which retrievals try to fit as the planetary signal. Neat (and a bit scary)!
We approached this problem bottom-up: simulating the complexity of high-resolution spectroscopy in a controlled environment, where we input the “ground truth” and see how it gets mutated.
For this study, we wanted to assess what sculpts high-resolution datasets — does analysis (like principal components analysis) necessarily eat away at the planetary signal? What happens if the telluric spectrum changes? How do inferences respond to photon noise? From whence spurious signals??
To set the scene: high-resolution spectroscopic observations are powerful probes of exoplanet atmospheres, and at the same time they can be tricky to interpret.
I’m at #exoplanets5 today presenting a poster! Kenny Arnold (former UMD undergrad and postbac, now Wisconsin-Madison grad) has done excellent work simulating JWST limb asymmetries across the hot Jupiter population, and I’m here on his behalf. Come find me in Poster Hall A to chat!! 🔭
There is a PhD opportunity (open to domestic and international students) with my colleague Peter Tuthill at @Sydney_Science on our space mission Toliman to look for planets around alpha Centauri!
www.sydney.edu.au/scholarships...
I'm on the academic job market this fall! 🥳
I recently completed my PhD, and I'm looking for a 3+ year postdoc position. I'm also applying to fellowships to potentially work on my own project ideas. 🔭
Buckle up! It's time for a thread of self-promo 😇
📢🪐(Exo)planet PhD students!
Uppsala University is offering a *fully remote* credited course on "Physics of Planetary Atmospheres" open to students of any institute starting 19 Sep. No final exam, all on Zoom, and SO MUCH FUN!
Info + register interest: forms.gle/JvLABm3uwy5Q... + please share! 🔭
