From guest author Rajat Saxena: Todayβs bite looks at how planets are formed in the βbumpsβ of protoplanetary disks.πβ¨βοΈ
astrobites.org/2025/08/26/b...
@stammler.bsky.social
Astrophysicists at LMU Munich. Planet formation. Data Science. Machine Learning. Bezirksausschuss Neuhausen-Nymphenburg. πhttps://stammler.github.io/
From guest author Rajat Saxena: Todayβs bite looks at how planets are formed in the βbumpsβ of protoplanetary disks.πβ¨βοΈ
astrobites.org/2025/08/26/b...
A white protoplanetary disc at the centre of the picture takes up most of the frame. The elliptical cloud of dust and gas consists of some gaps creating a ring-like structure to the cloud. In one of the larger gaps/rings a little dot (a planet) is visible.
A very hungry planet! πͺ
What appears to be a ripple in space is actually a newborn planet, eating its way through its dusty cradle around a younger version of our Sun π
Read more: https://www.eso.org/public/images/potw2534a/
π π§ͺ #exoplanets
π· ESO/R. van Capelleveen et al.
Geeeez!!
I remember you making fun of the DustPy release delays. π
Comic. [planets and astronomical bodies in various shapes with comments pointing to them] Typical Exoplanet System: Giant planet orbiting so close that itβs actually rolling on the starβs surface; Hot Jupiter; Mini Neptune; Planet that could be habitable, if thereβs a form of life that hates water but loves acid and being on fire; Cold Jupiter; Potentially habitable void; Hot Mars; Planet that may actually be in the habitable zone, according to a very optimistic modeling paper by some desperate postdocs; Thereβs a pulsar here but itβs probably fine; A waterworld paradise with beautiful oceans and warmβ Wait, no, we just got new measurements, itβs a hellish steam oven; Mini Pluto; Earthlike data artifact; Wet Saturn; Either a gas giant or a fist-sized rock, depending which calibration method you use; Faint dust cloud that will cause several papers to be retracted; Somehow this whole system is smaller than the orbit of Mercury?!; Planet whose surface may host conditions suitable for rocks
Exoplanet System
xkcd.com/3103/
That concludes the list.
Thank you for reading through this thread!
Follow me for more groundbreaking tech advice! π§΅ 2/2
Logo of IDL (Interactive Data Language), featuring the bold black letters 'IDL' with a swooping gray arc below and a red dot above the 'I', set against a light background.
IDL (Interactive Data Language) is a powerful, cutting-edge programming language used in a wide range of scientific fields.
Here are all the reasons you need to switch to IDL β TODAY! π§΅ 1/X
And before anyone asks, the correct ranking of Paulaner sodas is:
1. Spezi
2. Zitrone
3. Orange
Example notebook is available here:
github.com/stammler/pau...
Three example of the Paulaner colormaps on the protoplanetary disk HD 163296 showing an almost axisymmetric disk with distinct rings and gaps substructures and a small vortex-like feature in the Southwest direction. Left: Spezi color scheme going from purple via red to yellow. Center: Orange color scheme going from red to yellow. Right: Lemon color scheme going from green to yellow.
Protoplanetary disk HD 163296 from Andrews et al. (2018) using Paulaner Colormaps.
Is it incredibly useful? Probably not.
Do you need it? Hell, yeah!
Demonstration of colormaps inspired by Paulaner beverages showing the typical wave pattern and five colors as printed on their labels. Left: Spezi. Center: Orange. Right: Lemon.
Introducing: Paulaner Colormaps for Matplotlib!
You can now use your favorite beverage in your plots!
Install with
pip install paulaner_colormaps
Rambo Zambo!
06.05.2025 09:22 β π 0 π 0 π¬ 0 π 0My favorites are confidential business calls in quiet zones on trains.
28.04.2025 22:00 β π 6 π 0 π¬ 0 π 0Check out the available features on the DustPyLib documentation!
dustpylib.readthedocs.io/en/latest/ra...
With the #ALMA deadline approaching rapidly, did you know that you can easily create (sub-)mm images of your favorite DustPy model with RADMC-3D using the radiative transfer libraries of DustPyLib?
The latest release (v0.7.0) even contains a lightweight slab model. π
@ludwigboess.bsky.social probably...
28.03.2025 21:43 β π 2 π 0 π¬ 0 π 0If anything in this repository is inefficient, not exactly "best practice", or simply plain wrong, I appreciate any input on how to improve it.
28.03.2025 21:43 β π 0 π 0 π¬ 1 π 0Since numpy.distutils got removed (thanks NumPy devs π) I had a hard time packing Fortran routines in my Python packages.
To save you some headaches here is a minimum working example of how you can do this.
Was hΓ€lt lΓ€nger?
Wahlversprechen der Union oder dieser frische Kopfsalat....oh shit!
Dann hΓ€tte die CSU vermutlich keinen der vier MΓΌnchner Wahlkreise gewonnen und wir kΓΆnnten uns diese ganze Diskussion um verfallene Direktmandate sparen.
26.02.2025 21:03 β π 0 π 0 π¬ 0 π 0Vorschlag: Direktmandat nur bei >50 %. Ansonsten zweiter Wahlgang mit Stichwahl. Alternativ: Ein Wahlgang mit Ranked Voting.
en.wikipedia.org/wiki/Ranked_...
#CDU und #CSU behaupten aktuell ΓΌberall, das neue Wahlrecht sei undemokratisch. Hier seht ihr von @wahlforschung dargestellt, wie der Bundestag mit den aktuellen 28,6 Prozent fΓΌr die Union bei deren Wahlrechtsvorschlag "Grabenwahlrecht" aussehen wΓΌrde...
#Wahlrechtsreform
Die Notebooks zum selbst Experimentieren sind als Repository verfΓΌgbar.
github.com/stammler/pca...
Mehr Details zur Hauptkomponentenanalyse der Hamburger #BΓΌrgerschaftswahl gibt es hier.
nbviewer.org/github/stamm...
Eine kurze EinfΓΌhrung zur Hauptkomponentenanalyse und wie man sie zur Visualisierung von politischen Clustern nutzen kann ist hier zu finden.
nbviewer.org/github/stamm...
Γbereinstimmung der Parteien zueinander.
26.02.2025 19:18 β π 1 π 0 π¬ 1 π 0Zweite Hauptkomponente:
Thesen, welche die Parteien bei Zustimmung am weitesten nach oben bzw. unten bewegen.
Erste Hauptkomponente:
Thesen, welche die Parteien bei Zustimmung am weitesten nach rechts bzw. links bewegen.