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- 20k.github.io/c++/2025/05/... I've finished writing up how to implement #neutronstar collisions (with code!), and follow them through to collapsing into a black hole. Turned out quite well! There's also a small side venture on how to put a cat onto a neutron star, which is v important #astrocode
- SuperNOVAS v1.3.1 (C/C++ astrometry library) has been released. It fixes a bug in the IAU2000 precession-nutation models. Fortunately, for dates near J2000 the errors were just a few micro-arcseconds. Linux RPM and Debian packages are on their way also... #astrocode github.com/Smithsonian/...
- The SuperNOVAS v1.3.0 astrometry library is now available as Linux RPM packages also for Fedora 41 and 42, rawhide, and EPEL 10 repositories! For Debian based distros it is currently under 'experimental' (for now). #astrocode smithsonian.github.io/SuperNOVAS/
- final topic in my Computational Astrophysics for the semester: machine learning / neural networks: zingale.github.io/computationa... #astrocode
- I was debugging my own #astrocode yesterday, and got very surprised when a trivial unit test failed on a `scipy.stats.sigmaclip` wrapper. There seems to be a very rare issue with the returned thresholds, which I'm circulating here in case.
- The SuperNOVAS C/C++ library has a ton of new features, making it easier to use. v1.3.0 brings versatile handling of string specifications for dates, times, and angles; rise, set, transit time calculations; and much more. #astrocode smithsonian.github.io/SuperNOVAS/
- today's Virtual Astronomy Software Talks seminar: * Devarshi Choudhury (UvA): X-PSI—neutron star X-ray Pulse Simulation and Inference. * Matthieu Schaller (Lorentz Institute): SWIFT—SPH with Interdepednent Fine-grained Tasking in ~2.5 hours (11am NY) vast-seminars.github.io #astro #astrocode
- SuperNOVAS v1.3.0 is released! This C/C++ astrometry library is just as easy to use as astropy, and it calculates precise positions 3--5 orders of magnitude faster than astropy. RPM and Debian packages are coming in a few days also. #astrocode smithsonian.github.io/SuperNOVAS/
- today's topic in my Computational Astrophysics class: Burgers' equation zingale.github.io/computationa... MMMmmmm burgers.... #astro #astrocode
- 20k.github.io/c++/2025/04/... Ever felt like building a #neutronstar, for a numerical relativistic simulation? Here's how! This is a programmer's guide (with code) on how to wrangle a specific set of initial conditions, so in the future we can smash some neutron stars together #astrocode
- The next article on how to build a spinning neutron star is 95% done now, just a few edits here and there. I've spun the (WIP) TOV portion of this out into its own library, as its fairly self contained. Should be easy to plug numerical equations of state into it github.com/20k/libtov #astrocode
- starting PDEs in my computational astrophysics class. My favorite topic zingale.github.io/computationa... #astro #astrocode
- new in pynucastro: we added a method to allow you to merge different weak rate tabulation libraries pynucastro.github.io/pynucastro/t... (you need to use the github version until we tag a release) #astro #astrocode
- Next paper I want to highlight: the paper for STRAUSS by @trayford.bsky.social et al. came out! ☄️ #astrocode STRAUSS is a tool for sonifying scientific data, meaning you can enhance the presentation & accessibility of your data. Paper: arxiv.org/abs/2504.01660 Here's a great example:
- d'oh, the tag is #astrocode, not astrocodes...
- Software jobs at @spacetelescope.bsky.social: 🔭🧪 #astrocode Sr Software Engineer recruiting2.ultipro.com/SPA1004AURA/... Sr Cloud Dev recruiting2.ultipro.com/SPA1004AURA/... Sr AWS Data Engineer recruiting2.ultipro.com/SPA1004AURA/... AWS Cloud/App Dev recruiting2.ultipro.com/SPA1004AURA/...
- Anyways, here's the paper - it's one of the first big uses of foundation models in astronomy that I'm aware of, and it seems to have worked really well! #extragalactic #astrocode 🧪
- The 30+ Euclid Q1 papers came out today! #extragalactic #astrocode 🧪 There are so many interesting things in this early Euclid data release! One paper that caught my eye was Siudek et al., who train a foundation model on Euclid galaxies. It's a cool use of machine learning for astronomy! Thread:
- Fresh off the JOSS press: a new release of Halotools with the inclusion of Intrinsic Alignment. #astronomy #astrocode
- A new JOSS paper on FELINE: a library for detection emission line sources in data from MUSE and other 3D cubes. #astronomy #astrocode
- doing FFTs in class today, and my favorite example: recovering the neutron star rotation rate from an X-ray burst lightcurve: zingale.github.io/computationa... thanks to Todd Strohmayer for sharing the data from his 1996 paper with me. #astro #astrocode
