Bibiana Prinoth
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bibianaprinoth.ch
Bibiana Prinoth
@bibianaprinoth.ch
🇨🇭
• ESO fellow @eso.org exploring exoplanet atmospheres 🪐 🔭 🇩🇪
• PhD from Lund Observatory 🇸🇪 & ESO 🇨🇱
• passionate about all things outreach and science communication ✨
In case you have missed it, we are hosting a super cool workshop on #exoplanets studies in Garching, Vitacura and Nice (YES, 3 places at the same time!!!) in November.

Bridging Horizons: Harnessing ESO's current facilities for the dawn of exoplanet population studies

Dates: **2-6 November 2026**
September 15, 2026 at 2:03 PM
Reposted by Bibiana Prinoth
Cathal Maguire's talk on limb asymmetries in exoplanet atmospheres is now available, just in time to inspire your JWST proposal writing. #exoplanets #astronomy

www.youtube.com/watch?v=f47c...
Limb from Limb: Observing Atmospheric Asymmetries from the Ground and Space - Cathal Maguire
YouTube video by BOWIE+ Seminars
www.youtube.com
September 1, 2026 at 7:01 AM
Reposted by Bibiana Prinoth
…and here, ”recently” = ”within 1 million years” 😅 but that’s like, *SO* recent in planet terms!!

”…models [showed] liquid can be transported […] through small conduits, similar to lava or geyser tubes, driven by buoyancy or pressure from below.” Such neat combo of several cool physics topics! 🔭🧪🪐🌋
Computer models led by Dr. Orkan Umurhan, senior research scientist at the SETI Institute, show that nitrogen ice at the base of Pluto’s kilometers-deep Sputnik glacier can melt, forming liquid nitrogen.

Learn more: www.swri.org/newsroom/pre...
SwRI study finds evidence of liquid recently flowing on Pluto’s surface | Southwest Research Institute
Researchers use New Horizons imagery to identify evidence for liquid nitrogen flowing from underneath Pluto’s famous heart-shaped glacier
www.swri.org
August 10, 2026 at 8:40 PM
Gonna do something a bit scary on Monday 🙃 I‘ll be talking about magnetic fields on #exoplanets in German 🥺
Das Magnetfeld der Erde ist wie ein Schutzschild, das des Jupiter hingegen erzeugt messbare Radiostrahlung. Und wie schaut es mit Magnetfeldern bei extrasolaren Planeten aus? @bibianaprinoth.ch verrät es uns am Montag bei Astro & Co - wie immer um 19 Uhr live 🔭

www.youtube.com/watch?v=9eQE...
Magnetfelder bei Exoplaneten
YouTube video by Haus der Astronomie
www.youtube.com
July 26, 2026 at 10:26 AM
Reposted by Bibiana Prinoth
New paper led by Joe Williams (@exeter.ac.uk), with our group among the co-authors ❄️

"Planetesimal Formation Across the Stellar Mass Spectrum and its Influence on Exoplanet-Inherited Volatile Budgets"

Read the paper: https://arxiv.org/abs/2607.20271

#exoplanets #planetaryscience
July 23, 2026 at 8:26 AM
Reposted by Bibiana Prinoth
That's no moon. It's a...hang on, what should we call it? 🤔

Our VLT has revealed evidence for a moon-like object in the CD-35 2722 system. Yet this new ‘exomoon’ detection is challenging cosmic labels!

🔭 🧪 #exoplanets
1/4
July 22, 2026 at 3:03 PM
Reposted by Bibiana Prinoth
Ten years of hide-and-seek! 🫣

Astronomers used our VLT to find a new #exoplanet orbiting the famous star Beta Pictoris — hiding in archival ESO observations spanning over a decade!

And it's shyer than any exoplanet we've imaged before.

🔭 🧪 1/3
📷 ESO/B. Sutlieff, M. Bonse et al.
July 15, 2026 at 12:11 PM
Reposted by Bibiana Prinoth
A major take-home from #SPIEAstro is that the level of scientific ambition in the European ground-based astronomy community is sky-high following the successes of VLT/VLTI, ALMA and the progress on ELT. @eso.org is *the* global leader in this area. This event sounds fab.
Hi #exoplanets folks,

I’m attending the Expanding Horizons conference @eso.org this week (thinking about the facility post-ELT… terrifying, I know 😅).

One thing that came up is that relatively few early-career astronomers submitted (co-authored) white papers for the process.

next.eso.org

1/3
Expanding Horizons
next.eso.org
July 14, 2026 at 2:48 PM
Hi #exoplanets folks,

I’m attending the Expanding Horizons conference @eso.org this week (thinking about the facility post-ELT… terrifying, I know 😅).

One thing that came up is that relatively few early-career astronomers submitted (co-authored) white papers for the process.

next.eso.org

1/3
Expanding Horizons
next.eso.org
July 14, 2026 at 8:37 AM
Reposted by Bibiana Prinoth
A very merry yee-haw to all horse girls & cowboys (gender neutral: horse cows?) attending #HoRS3S in Granada this week! I've sadly ended up unable to attend IRL this year, but am sending my best in the form of a poster that'll be up in my absence on #exoplanet WASP-107 b 🔭🤠💖🐎🧪 Have a fun week y'all!
July 6, 2026 at 7:57 AM
Reposted by Bibiana Prinoth
Last is the SOYSAUCE survey, PI Madyson Barber. Work on studying the alignment between planets and their host stars, focusing on <200 Myr systems (fast misalignment or primordial misalignments). So far, things look aligned. This was done as a twilight zone reference 🧪🔭⭐ #exoplanets
July 2, 2026 at 1:14 PM
Pushing this into #exoplanets
Hello! We have a very-off-cycle postdoc fellowship at UC Santa Cruz. Open to any area of Astronomy and Astrophysics. Applications are due July 15th. It is funded by the Moore Foundation. Looking for someone to start Oct 1, 2026 (!, approx), see details below.
aas.org/jobregister/...
Postdoctoral Fellow in Astronomy & Astrophysics, UC Santa Cruz | American Astronomical Society
The Department of Astronomy and Astrophysics invites applications for a two-year Postdoctoral Fellowship position at the University of California, Santa Cruz, funded by the Moore Foundation. The searc...
aas.org
July 1, 2026 at 11:12 AM
I am giving a keynote at the HoRS3S conference next week (my first keynote so consider me very excited 🥹) & seriously it‘s so much fun prepping those slides 🤭

Shoot me a message if you‘re coming to HoRS3S next week. I might find a way to give you a shoutout 😋 #exoplanets
June 30, 2026 at 6:51 AM
Anyone doing some live-posting from #Exo6 #Exoplanets6?

Not seeing anything on #exoplanets but maybe I am blind?

FOMO is kicking in (but I really needed the break 😬)
June 29, 2026 at 1:46 PM
Reposted by Bibiana Prinoth
MPIA PhD student Angelique Kahle has a very cool paper out today looking at everyone's favourite ultra-hot Jupiter, WASP-121b. Angelique is giving a talk on the results next Monday at Exoplanets VI, as well. #exoplanets

arxiv.org/abs/2606.21855
The panchromatic JWST dayside spectrum of WASP-121 b reveals a refractory-rich formation
One path to understand how planets form is to link their present-day atmospheric composition to predictions from planet formation models. For the hottest planets, the abundances of refractory species ...
arxiv.org
June 23, 2026 at 6:20 AM
Last week, I uploaded my first first-author paper as Dr. Prinoth to arXiv, and I finally have time to tell you about it. This one has been a long time coming, and I'm incredibly happy and proud that it's finally out in the #exoplanets world!

🔗 arxiv.org/abs/2606.14490

1/n
A population view of transiting hot giant exoplanets: Tracing Fe and Ti chemistry with ESPRESSO and MAROON-X
Hot and ultra-hot Jupiters offer a unique laboratory to study atmospheric chemistry at the population level using ground-based high-resolution spectroscopy. Fe and Ti are key tracers of thermal and ch...
arxiv.org
June 26, 2026 at 1:12 PM
Very happy to share that I got awarded the IAU PhD Prize of Division F for my thesis on “Transmission spectroscopy of hot gas giant #exoplanets ” 🪐

I’m incredibly proud and happy, but also immensely grateful for all the support from supervisors, collaborators, friends and family through all this! ❤️
eso.org ESO @eso.org · Jun 25
Our congratulations to ESO fellows Maximilian Häberle & Bibiana Prinoth @bibianaprinoth.ch on receiving the 2025 IAU PhD Prize 👏

Assigned by each IAU Division, it acknowledges remarkable work carried out in the Division's subject area during the previous year.

1/4
🧵👇 
🔭
June 25, 2026 at 2:09 PM
I got to talk (and write) about my favourite objects: #exoplanets 🪐

Tack så mycket @popularastronomi.se 🫶
June 12, 2026 at 7:32 AM
Magnetic fields tend to be the running joke at #exoplanets conferences. You can be sure someone asks „what about magnetic fields?“.

This is the answer ⬇️
eso.org ESO @eso.org · Jun 2
Using our VLT and the Gemini North telescope, astronomers have measured the strength of #exoplanets ’ magnetic fields for the first time.

These fields turned out to be comparable to those found in our Solar System.

More: https://www.eso.org/public/news/eso2606/

🔭 🧪
#exoplanets
June 2, 2026 at 10:40 AM
I also finally submitted my own abstract 😌 Don’t forget yours!
Hi #exoplanets people!

Just popping by to remind you of the upcoming abstract deadline (31 May) for "Bridging Horizons: Harnessing ESO's current facilities for the dawn of exoplanet populations studies" happening in November! 🪐🔭

www.eso.org/sci/meetings...
ESO - Bridging Horizons
ESO is the European Organisation for Astronomical Research in the Southern Hemisphere. It operates the La Silla Paranal Observatory in Chile and has its headquarters in Garching, near Munich, Germany.
www.eso.org
May 31, 2026 at 2:45 PM
Hi #exoplanets people!

Just popping by to remind you of the upcoming abstract deadline (31 May) for "Bridging Horizons: Harnessing ESO's current facilities for the dawn of exoplanet populations studies" happening in November! 🪐🔭

www.eso.org/sci/meetings...
ESO - Bridging Horizons
ESO is the European Organisation for Astronomical Research in the Southern Hemisphere. It operates the La Silla Paranal Observatory in Chile and has its headquarters in Garching, near Munich, Germany.
www.eso.org
May 26, 2026 at 11:42 AM
Reposted by Bibiana Prinoth
🪐🔭 Our paper on everyone's favourite popcorn #exoplanet, WASP-107 b, has now been accepted for publication in A&A! Here is the updated arXiv version: arxiv.org/abs/2508.18964

The main science results are covered in the original thread below ⬇️ but since we added a bunch of cool new things...

🧪🧵
April 28, 2026 at 12:56 PM
For hunters of rocky worlds: save the date! 🔭 #astrocode

We're preparing a Data Challenge modeled after the 2015 Spitzer Exoplanet Data Challenge, this time with MIRI observations from the Rocky Worlds DDT program.
Rocky Worlds DDT Data Challenge and Data Challenge Workshop — Save the Date
www.stsci.edu
March 20, 2026 at 9:23 AM
Reposted by Bibiana Prinoth
I'm super excited to share a HUGE paper out from Young Worlds Lab team member Andy Boyle.

I present for you, ~900,000 rotation periods from TESS!

🤯🔭🧪⭐ #exoplanets #stellarrotation

arxiv.org/abs/2603.05586
The TESS All-Sky Rotation Survey: Periods for 944,056 Stars Within 500 pc
Stellar rotation is a fundamental tracer of stellar magnetic evolution, age, and activity, with broad implications for Galactic archaeology and exoplanet characterization. The Transiting Exoplanet Sur...
arxiv.org
March 9, 2026 at 9:52 AM
The ESO studentship was probably one of the best experiences of my academic career so far; recommend it 100%!

Please spread into your networks. Happy to answer questions or even host a student with one of my fellow #exoplanets people. Just get in touch!💙
eso.org ESO @eso.org · Feb 27
#ESOjobs If you are a PhD student in astronomy or related scientific fields, you can apply for the ESO Studentship Programme 2026/2027.

Positions are available at our Headquarters in Germany or in our offices in Santiago (Chile).

Apply by: 20 April 2026.

Details: https://recruitment.eso.org/

🔭
February 27, 2026 at 1:17 PM