More broadly, this highlights that the volatile inventory of planet-forming material, and thus potentially the composition of exoplanet atmospheres, may be impacted by the disk buildup phase.

In this work, I explore how the earliest stages of protoplanetary disk formation shape the composition of ices that later build minor bodies. The results show that disk buildup naturally leads to enhanced CO-to-water ratios in pebbles, offering a new perspective on the origin of CO-rich comets.

Dust evolution during protoplanetary disk buildup enhances CO ice relative to water Water ice is expected to be the dominant volatile component of bodies formed in the outer Solar System. However, recent observations of comets and trans-Neptunian objects suggest that the relative abu...

I’m happy to share my latest paper that is now available on arxiv: arxiv.org/abs/2603.26876

Are you interested in protoplanetary disk substructures and their role in planet formation? Come to our session at the EAS meeting this year! Abstract submission is open until March 2nd! More info: eas.unige.ch/EAS_meeting/...

Post-doc on properties of Solar system small bodies The small bodies of our Solar system (comets and asteroids) are the remnants of the building blocs that accreted to form the planets. The suite of events that occurred during planet formation left pri...

Are you looking for a postdoc position working on asteroids and comets? Would it help if it's in a beautiful place in southern France? If yes, then consider applying to the following position of my colleague Benoit Carry at the Observatory in Nice:
euraxess.ec.europa.eu/jobs/402212

#planetSci

Well, until I got the #ERCStG, I always had to work on other people's projects ;-)

GitHub - vicky1997/mcdust: 2D Monte Carlo dust evolution code for protoplanetary disks 2D Monte Carlo dust evolution code for protoplanetary disks - vicky1997/mcdust

The code can be accessed here github.com/vicky1997/mc...

mcdust: A 2D Monte Carlo code for dust coagulation in protoplanetary disks mcdust is a parallel simulation code for dust evolution in protoplanetary disks. The code is written in FORTRAN90 and parallelised with OpenMP. The code models dust collisional evolution and transport...

See the paper (submitted to @joss-openjournals.bsky.social‬) here arxiv.org/abs/2507.21239

Almost 14 years ago, I started developing a Monte Carlo code for dust evolution in protoplanetary disks. The code is now publicly available! 🚀 This was possible thanks to the hard work of @turbulenthuman.bsky.social ‪and @nereagurru.bsky.social‬ 🙌

Take a look to learn more about the prospects of forming close-in exoplanets in-situ by pebble accretion!

Illustration of the planet-building process of accretion.

Illustration of a pair of quasars merging. For NOIRLabs, Tucson

Disintegrating planet. For a press release for Harvard Centre for Astrophysics

Illustration showing a galaxy as a giant whirlpool in space, and the galaxy's effect on that space.

Here's a selection of illustrations I've created for science press releases over the years.

Please repost for me!

And if you need to commission this kind of work, check my background. I'm your man.

#SciArt #spaceart

Studying Planetary Systems in the Making How do planets form from the disks of gas and dust that orbit around young stars? At the Max Planck Institute for Solar System Research (MPS) in Germany, Joanna Drążkowska is investigating this questi...

I'm so grateful for this opportunity to expand my research group at @mpsgoettingen.bsky.social thanks to the Lise Meitner Excellence Program 🪐 www.mps.mpg.de/studying-pla...

Summer internships

The Max Planck Institute for Astronomy Summer Internships are open for applications! This is an opportunity for bachelor and masters students 🤩 If you are interested in doing some exoplanets research, contact me!

More info: www.mpia.de/en/careers/i...

🔭🪐⭐🧪👩‍🔬

Postdoctoral Position (f/m/d) in Exoplanets Formation

Most of the planet formation models assume a Solar-type central star. But exoplanets form around stars of various masses and compositions. Do you want to work on exoplanet formation models? Apply now to join our group as a postdoctoral researcher next year!

Postdoctoral Position (f/m/d) in Solar System formation

What are the meteorites actually telling us about the Solar System formation? Are the meteorite parent bodies really left-over planetesimals? 🤔 If you would like to investigate this, apply to work with me as a Postdoctoral Researcher in Solar System Formation! The deadline is January 15th, 2025.

At the Kapteyn Astronomical Institute of the University of Groningen we are looking for 2 PhD students in the fields of exoplanets and planetary science, see:
aas.org/jobregister/...
www.rug.nl/research/kap...
Please share these positions with potentially interested students and your network. 🙂

Stranded xkcd.com/2978

PhD Position in Planet Formation The Planet Formation Group is offering PhD opportunities focused on understanding the formation and subsequent evolution of planets. Our research aims to build the first comprehensive model that conne...

There are new PhD positions open in my group! Apply until October 1st to work on some cool projects in planet formation 🪐 More details here: www.mps.mpg.de/phd/planetar...

Sequential giant planet formation initiated by disc substructure Planet formation models are necessary to understand the origins of diverse planetary systems. Circumstellar disc substructures have been proposed as preferred locations of planet formation but a...

This may be the most important paper in the planet formation field in recent years - showing how to go from dust to a chain of massive planets 🟤🪐🔵🔵 If you are at
#Exoplanets5 you can talk to the first author, Tommy Lau 😉 arxiv.org/abs/2406.12340 With @birnstiel.bsky.social @stammler.bsky.social

I will be there and will be happy to meet you :-)

Are you thinking of going to EPSC this year? It's in Berlin and will surely be a blast. I'm organising session EXOA12 with @astrojoanna.bsky.social and others on "Protoplanetary disks and planetesimal formation".
Abstract deadline: May 15.
bit.ly/EPSC2024-EXO...

Call for nominations for the position of Director

My institute is looking for a (female) director www.mps.mpg.de/director-nom...

Gas disks around young stars are actually not very flat, but dust particles are not pressure-supported (as opposed to the gas) and larger dust aggregates settle to much thinner disks and eventually form flat planetary systems :-)

I have a couple of colleagues who would qualify but they are not here, LinkedIn is where you find them ;-)

Are you a PhD astronomer working outside academia? I want to hear about your job! 🔭🧪

On #InternationalWomensDay, here's a quick reminder how to retain more women in academia:

- educate yourself on unconscious biases,

- provide a safe work environment with no everyday sexism,

- include us in decision making,

- don't force us into service work that no one wants to do.

#IWD2024

Submit your abstracts and travel grant requests for the European Astronomical Society Annual Meeting 2024 in Padova until March 4! I hope to see many of you there!

Joanna Drazkowska "The Emerging Theory of Planet Formation" Joanna Drazkowska (Max Planck Institute for Solar System Research)"The Emerging Theory of Planet Formation"The classical theory of planet formation originate...

I had a great and intense week visiting CfA and MIT - you can watch my CfA colloquium here: www.youtube.com/live/tyfjG0R...

📢 Another great opportunity to do research in planet formation: Sebastiaan Krijt is looking for a postdoc to join his group at the University of Exeter👇

📢 Job alert: PhD and postdoc positions in planet formation 🪐 My former boss @birnstiel.bsky.social just unleashed new openings in his group, and trust me when I say, working with him is like winning the job lottery!