this has to be an ai-generated tagline right??? "no crunch just flavor" WHAT ARE YOU TALKING ABOUT

SO PROUD OF MY (FUTURE*) WIFE @sierragrant.bsky.social *FUTURE MEANING SUNDAY

Space Telescope Science Institute@stsci.edu · 10mo ago

#NASAWebb has found the first direct evidence of potential moon formation around a giant exoplanet. The discovery is shedding light on how such systems evolve and why moons could be potentially habitable worlds: https://bit.ly/46xGodN 🔭 🧪

🪐🔭 JWST is letting us learn about disks around PLANETARY-MASS OBJECTS!!!

Sierra Grant@sierragrant.bsky.social · 11mo ago

Today is a special paper day for me: for the first time we can do chemistry in a circumplanetary disk around a planetary-mass companion! Gabriele Cugno and I used JWST to tease out the signal of CT Cha b, finding a rich carbon chemistry (7 molecules + 1 isotopolog detected)! arxiv.org/abs/2509.15209

Now published in AJ! Get in here this system is crazy iopscience.iop.org/article/10.3...

Another MINDS JWST paper! We explore the stark transition from H2O-dominated spectra in Sun-like systems to the carbon-rich chemistry seen for low-mass objects. We don't know exactly what is driving this trend, but we explore the possibilities that may be acting in concert. arxiv.org/pdf/2508.04692

Congratulations to Dr. Allison McCarthy, who successfully defended her PhD “The Physical Basis for L and T Dwarf Variability” on Friday! Allie is now off to Trinity College Dublin for a postdoc with the ExoAimsir group led by Prof. Johanna Vos! 🪐🔭 @alliemccarthy.bsky.social @johannavos.bsky.social

New paper on arxiv! My colleague Juliana García-Mejía analyzed data from several facilities searching for a transit of the long-period (542 d) super puff HIP 41378 f. The full transit is 19 hours long, but we detected it using a few "snapshots" from multiple observatories. arxiv.org/abs/2506.20907

Just found out starry (starry.readthedocs.io/en/v1.1.0/) lets you project any image you want onto a sphere, so here's the 40-degree spherical harmonic expansion of Jupiter. 🪐🔭

TOI-3884 b is a planet around an M dwarf whose transits show persistent spot crossings. We show that the star's rotational and spot-crossing variations can be modeled with a misaligned planet transiting a large polar spot (confirming last week's results from Mori et al.) arxiv.org/abs/2506.11998

Now published in AJ! We used Tierras to measure the 23-day rotation period of a K dwarf and found that the orbit of its transiting planet is aligned with the star's spin axis. Stay tuned as we measure true obliquities for a larger sample! iopscience.iop.org/article/10.3...

The Tierras Observatory i̶s̶ ̶ was supported by the National Science Foundation under Award No. AST-2308043.

arxiv.org/abs/2505.03628 🪐🔭

Hi everyone, I'm looking to hire a postdoc this upcoming year, so if you're interested in coming to San Diego to work on low-mass stars, brown dwarfs, and exoplanets, please apply! aas.org/jobregister/...

🚨🚨 I'm hiring!!! 🚨🚨 Postdoc and PhD positions available to join my ERC project Exo-PEA at @tcddublin.bsky.social. The project aims to understand weather in giant extrasolar worlds ☁️⚡🪐 📆 Deadline: Jan 6th Postdoc ad: tinyurl.com/2ufcwvxf PhD ad: tinyurl.com/5amcea6p Please share widely! 🔭🪐

Check out BU PhD-student @alliemccarthy.bsky.social's paper just accepted to ApJL! JWST spectral light curves of SIMP 0136 show clear pressure-dependence, indicating three variability mechanisms: clouds, hot spots and C chemistry. @johannavos.bsky.social is the JWST PI! arxiv.org/abs/2411.16577

The JWST Weather Report from the Isolated Exoplanet Analog SIMP 0136+0933: Pressure-Dependent Variability Driven by Multiple Mechanisms

Isolated planetary-mass objects share their mass range with planets but do not orbit a star. They lack the necessary mass to support fusion in their cores and thermally radiate their heat from formati...

arxiv.org

Meteor caught on Whipple Observatory sky cameras last night 🪐🔭

Recently implemented Sicko Mode™ on Tierras 🔭🪐

Comet C/2023A3 as seen by the Tierras Observatory! 🪐🔭

opened up the telescope and almost had a heart attack

What's really going on vs. what you get from TESS

Our latest JWST (+ ALMA, VLTI-GRAVITY, IRTF-iSHELL) paper has been accepted in A&A! arxiv.org/abs/2406.10217 We investigated the short-separation DF Tau binary system. We find an unexpected disk around B with ALMA, with movement seen in ~2 months. The disks are < 3 au in radius.

My new favorite abstract

Very proud of @sierragrant.bsky.social, who gave an excellent invited talk at the Harvard Radcliffe Institute last week on what we're learning about planet formation with JWST! www.youtube.com/watch?v=CAWU...

Next in Science: James Webb Space Telescope | Part 1

The James Webb Space Telescope (JWST) is the most ambitious project in the history of astronomical investigations. Within the short period of time since it b...

youtube.com

I finally celebrated job news: I’m moving stateside (well, okay, federal-district-side)! In the fall I will start a three-year position as a Carnegie Fellow at Carnegie Science’s Earth and Planets Laboratory (EPL) in Washington, D.C. 🇺🇸

Wonderful article in Scientific American about water's cosmic journey, including some thoughts of my own!! 💧✨🔭 www.scientificamerican.com/article/jwst...

JWST Is Tracking Down the Cosmic Origins of Earth's Water

New observations from the James Webb Space Telescope are exposing the pathways that water takes to reach terrestrial planets

scientificamerican.com

My data literally hitting me with the 🫤

🚨🚨I'm hiring !!🚨🚨 I’m looking for a Research Fellow to join my team at Trinity College Dublin to work on Extrasolar Atmospheres ☘️🪐☁️🔭 Deadline: December 31st  Ad: jobregister.aas.org/ad/c1a19f23 Please share widely!

According to Forebears there are ~4000 people worldwide with my surname, 0.5 ppm of the global population. I found out this week that there is another Tamburo at Harvard (a postdoc in anthropology) and we're going to meet to figure out if we're related 😭😭😭

@sierragrant.bsky.social quoted in Nature! 😎😎😎https://www.nature.com/articles/d41586-023-02922-w

How worlds are born: JWST reveals exotic chemistry of planetary nurseries

The telescope is delivering a cascade of insights about the ‘protoplanetary’ disks where planets take shape. The telescope is delivering a cascade of insights about the ‘protoplanetary’ disks ...

nature.com

BU Astro is hiring! Happy to answer questions about the search, our department and our resources. academicjobsonline.org/ajo/jobs/25624