What a crazy week! I was selected to attend the 75th Lindau Nobel Laureate Meeting and had the opportunity to present my work in front of Nobel Laureates. That was scary, but they are amazing people and loved to chat. #LINO75

Hi everyone I wanted to show a couple features of my website. Firstly, a page which shows evolutions of the binary black holes we have detected with @ligo.org @egovirgo.bsky.social @kagra. Click the link to learn more! nihargupte.com/blog/catalog... #blackholes

I have been reading Weinberg's "Quantum Theory of Fields", it is an excellent book and rejuvenating my interest in physics. Well, I guess thats my new years resolution, at least make it to chapter 5 👾

Often we talk about accuracy and speed of inference during ML applications to science. However, an equally important feature is flexibility. This is because real data requires flexibility (changing settings during inference time). Please check out Annalena’s thread for more info!

Annalena Kofler@annalenakofler.bsky.social · 9mo ago

8/ 📉 Without DINGO-T1, all these analyses would have required training 94 separate DINGO models. Instead, we train once—and adapt across settings.

1/ 🌀 New paper alert! We introduce Dingo-T1, a flexible transformer-based deep learning model for gravitational-wave (GW) data analysis. It adapts to different detector & frequency settings, improving inference efficiency and flexibility 🚀 #AI #MachineLearning #Physics #Astronomy #AcademicSky

How much information can we gain by pushing numerical relativity to its limit by simulating black hole scattering encounters? My latest paper (below) explores these extreme regions of the black-hole scattering parameter space using simulations generated using the Spectral Einstein Code (SpEC).

Black-hole scattering with numerical relativity: Self-force extraction and post-Minkowskian validation

The asymptotic nature of unbound binary-black-hole encounters provides a clean method for comparing different approaches for modeling the two-body problem in general relativity. In this work, we use n...

arxiv.org

Oo! Interesting #GravitationalWave candidate #S251112cm potentially from a *subsolar* mass source If real, the source is probably has chirp mass ~0.1–0.87 solar masses False alarm rate 1 in 6.2 yr GraceDB gracedb.ligo.org/superevents/... GCN gcn.nasa.gov/circulars/42... Rating 📏🍬 [🧪🔭⚛️]

Great set of talks/panels today by Kip Thorne, Thibault Damour, Zvi Bern, Dennis Lehmkuhl, Leor Barack, Luc Blanchet, Gerhard Schäfer, and Clifford Will about the history of the two body problem. At the MPI for Grav. Phys. in Potsdam.

Made a poster for a conference!

New paper on the arXiv today about systematic errors when modelling the gravitation waveform from extreme mass ratio inspirals and their impact on LISA data science Huge thanks to my collaborators, especially Hassan Khalvati, for getting this project over the line! 🧪⚛️🔭🧮 arxiv.org/abs/2509.08875

Ok, there's a lot of cool stuff in the new @ligo.org collaboration paper (and I'll let the actual LVK members talk about most of it), but one very cool thing from the populations paper (arxiv.org/abs/2508.18083) that jumps out to me is this plot of the effective spin for 30-40 solar mass BHs: 🔭🧪

Everyone is saying it looks like a phoenix I feel like it looks more like a butterfly or a moth from a top down view The beak of the phoenix/antenna of the moth is the heaviest one we've seen so far, and by a good bit!

LIGO Scientific Collaboration@ligo.org · 12mo ago

Results from the first part of our fourth LIGO @egovirgo.bsky.social KAGRA observing run are out today! We're pleased to share the largest catalog of gravitational-wave observations with more discoveries of black holes and neutron stars 📰 arxiv.org/abs/2508.18082 🔭🧪⚛️☄️ #GWTC4

An interesting talk today at #gramaldi #amaldi16 by Gautam Satishchandran on how black holes cause decoherence of quantum experiments. The research is a thought experiment but also provides estimates on the decoherence time as a function of the distance between the experiment and the black hole.

My favorite slide of the day from #gramaldi #amaldi16. Isobel Romero-Shaw talks about how we can use spin distributions and eccentricities to differentiate between field triples, isolated binary evolution and dynamical formation. It was a cool artwork as well

My favorite slide today from Oliver Jennrich at #gramaldi #amaldi16. It shows how rich gravitational waves from extreme mass ratio inspirals are for testing general relativity

We are excited to announce the discovery of #GW231123, a gravitational-wave signal from the merger of two high-mass black holes to form one about 190–265 times the mass of our Sun ligo.org/ligo-virgo-k... #O4IsHere 🔭🧪☄️

Trump has decided he wants to kill one of humanity's most sensitive instruments for understanding the universe for... about the cost of... half a fighter jet (or less). Source: www.nasa.gov/wp-content/u...

We are excited to release a major update to our catalog of binary black hole simulations, available at arxiv.org/abs/2505.13378! Such simulations are key to LIGO/Virgo/KAGRA being able to extract science from their gravitational wave detections. 1/13 🧪⚛️🔭

For those with an artistic streak, #GR24Amaldi16 will be hosting an art science exhibition. We welcome submissions inspired by the themes of the meeting (gravity, cosmology, black holes, gravitational waves, astrophysics). Anyone can submit! uofgravity.github.io/amaldi-art/ 🧪🔭🐚

Wanted to shout out this paper: by @maximiliandax.bsky.social and @stephenrgreen.bsky.social. It allows us to perform parameter inference of binary neutron stars in a second. These binary neutron stars are measured with gravitational waves! Here’s a poster I made for the LVK meeting in Barcelona!

...so is it time to throw a funeral for LCDM? That depends on who you ask 😂. It's certainly a sign that DESI's DR1 results were not a statistical fluke. Even if LCDM prevails, SOMETHING is weird and that's a great sign that we're learning something new.

GOAT meets GOAT to create the GOAT of Astro YouTube series

Richard McElreath 🐈‍⬛@rmcelreath.bsky.social · last yr.

Part 2 is out! Continue with the epic story of how basic trigonometry (and very precise measurement) establishes the scale of the cosmos. This is much more soothing than whatever else you are scrolling. www.youtube.com/watch?v=hFMa...

Wow!

Emily Hunt@emily.space · 2y ago

A very fascinating paper went up on the arXiv today! Jesse Han & El-Badry et al. reanalysed the 21 known 'hypervelocity' stars in the #milkyway. They find strong evidence that the LMC (Large Milky/Magellanic Cloud) has a supermassive black hole at its core! 🤯 arxiv.org/abs/2502.00102

1/ 🌌 New Paper Alert: How can we decode the atmospheres of exoplanets efficiently and reliably? The latest work by my amazing collaborator @timothygebhard.bsky.social introduces Flow Matching Posterior Estimation for atmospheric retrieval. 🚀🧵👇 #AI #MachineLearning #Physics #Astronomy #AcademicSky

I had the opportunity to answer questions at the Royal Astronomical Society (@royalastrosoc.bsky.social) about GWs+ML. Thanks to all the organizers from Royal Holloway (esp. Ann and Mattia) for inviting me! I was able to work on this fountain pen sketch of the Victoria statue before the workshop:

Woke up this morning to see the sad news of the Palisades and Eaton fires. I hope everyone, their families, and pets are ok. I can't imagine what kind of anxiety it is wondering if your home is ok or not :( Here's some info on the fires based on a project I was working on in 2019. 1/11

I visited #Tokyo, #Kyoto, #Osaka, #Nara and Mt. #Fuji for ~2 weeks. #Japan, is a cool place with amazing people! I do travel sketchbooking so I thought I would share my sketches. Usually, they’re scribbled at the sites in awkward positions, but the sketches feel way more organic that way.

I want to compliment the way scientists are portrayed in the Netflix series #Arcane. They're portrayed as people *first* and scientists *second*. This leads to organic motivations and character development.

1/ 🚀 New Paper Alert: Spotlight at NeurIPS ML and the Physical Sciences Workshop! We explore the intersection of high-energy physics and machine learning. What's the challenge we’re targeting, and why does it matter? Let's dive in! 🧵👇 🚀 #AI #MachineLearning #Physics #ML4PS #NeurIPS #AcademicSky

I'm co-organizing a workshop on Scientific Machine Learning for Gravitational Wave Astronomy at ICERM, Providence, RI, June 2 - 6, 2025. Applications are now open at icerm.brown.edu/program/topi...! We recommend applying by December 15, 2024.