#epta — Public Fediverse posts

How is generative AI reshaping parliamentary TA?
The second part of our series shares insights from TAB’s experiments – from AI‑supported trend analysis to chatbot‑based feedback.
👉 Read here: https://www.tab-beim-bundestag.de/english/generative-ai-and-parliamentary-ta-between-potential-practice-and-reflection.php

We welcome input and perspectives for the upcoming parts of the series.

#TechnologyAssessment #AI #PolicyAdvice #EPTA

📣 New selected research highlight ✨

A clearer view of gravitational-wave signals in pulsar timing arrays

An international team led by researchers at the @mpi_grav in Hannover, Germany, developed an improved noise model to analyze data from the European Pulsar Timing Array.

ℹ️ https://www.aei.mpg.de/1323827/a-a-clearer-view-of-gravitational-wave-signals-in-pulsar-timing-arrays

By addressing known limitations of how the noise contamination is modeled and therefore included in the analysis, the researchers have mitigated a tension between earlier studies of the data and the theoretical predictions.

According to their improved analysis, published in Nature Communications today, the EPTA data now better agree with a gravitational-wave background from coalescing black hole binaries in circular orbits. Additionally, the inferred background amplitude is in less tension with theoretical expectations.

📄 https://www.nature.com/articles/s41467-025-65450-3 [Open Access]

#PTA #PulsarTimingArray #EPTA #BlackHoles #GravitationalWaves

#Verpasstodon

Unabhängig voneinander: Forschungsprojekte finden Gravitationswellen-Hintergrund

Dank der hochpräzisen Signale von Pulsaren haben mehrere Projekte den Gravitationswellen-Hintergrund nachgewiesen. Der öffnet einen neuen Blick aufs Universum.

https://www.heise.de/news/Galaxiengrosse-Observatorien-weisen-den-Gravitationswellen-Hintergrund-nach-9202103.html?wt_mc=sm.red.ho.mastodon.mastodon.md_beitraege.md_beitraege

#Astronomie #Astrophysik #EPTA #Gravitationswellen #NANOGrav

@heiseonline Das war die andere Nachricht. Nicht weniger beeindruckend:

Unabhängig voneinander: Forschungsprojekte finden #Gravitationswellen-Hintergrund

Dank der hochpräzisen Signale von Pulsaren haben mehrere Projekte den Gravitationswellen-Hintergrund nachgewiesen. Der öffnet einen neuen Blick aufs Universum.

https://www.heise.de/news/Galaxiengrosse-Observatorien-weisen-den-Gravitationswellen-Hintergrund-nach-9202103.html?wt_mc=sm.red.ho.mastodon.mastodon.md_beitraege.md_beitraege

#Astronomie #Astrophysik #EPTA #NANOGrav

Clock-like precision of pulsars opens new gravitational-wave window – First evidence for ultra-low-frequency gravitational waves.

Our press release about the results from the European Pulsar Timing Array: https://www.aei.mpg.de/1057931/clock-like-precision-of-pulsars-opens-new-gravitational-wave-window.

#GravitationalWaves #EPTA

Präzise wie ein Uhrwerk: Pulsare öffnen ein neues Fenster für Gravitationswellen – Erste Hinweise auf extrem niederfrequente Gravitationswellen.

Unsere Pressemitteilung zu den Ergebnissen des European Pulsar Timing Array: https://www.aei.mpg.de/1057942/clock-like-precision-of-pulsars-opens-new-gravitational-wave-window

#Gravitationswellen #EPTA

Tantalizing set of papers, showing potential gravitational wave signal from merging supermassive black holes. Based on decades long monitoring and timing of a set of pulsars with big radio telescopes in Europe (including 100m Effelsberg I used during my PhD), America, Asia, Australia. #EPTA press release: https://www.mpifr-bonn.mpg.de/7918483/epta-jun2023

Still early days. Years of more data are still necessary I think. #astrodon #RadioAstronomy #Astronomy #GravitationalWaves #SciCom #Pulsars #BlackHoles