#radioastronomy — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #radioastronomy, aggregated by home.social.
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📡 MeerKAT has extracted the neutral hydrogen 21 cm signal from 4–5 billion light years away using radio data alone, with no optical galaxy survey to lean on. A Manchester / Univ. of the Western Cape team analysed ~96 hours of observations taken back in 2018. Hydrogen intensity mapping is becoming a practical cosmology tool — and a key method for SKAO. (1 Sep 2026)
#RadioAstronomy #Astronomy #Space
https://www.manchester.ac.uk/about/news/astronomers-use-meerkat-to-directly-detect-faint-hydrogen-signal-from-the-distant-universe -
After years of silence, a pulsar suddenly changes its spin three times
ⓘ NASA – Unsplash An artist’s illustration showing a neutron star …
#NewsBeep #News #Science #acceleration #Astronomy #Astrophysics #AU #Australia #benchmarks #Cosmos #Glitch #graphicscard #laptop #Murriyang #NASA #netbook #neutronstar #notebook #processor #PSRJ1637−4642 #pulsar #RadioAstronomy #reports #review #reviews #rotation #Sciencenews #Space #SpaceNews #spin #telescope #test #tests
https://www.newsbeep.com/au/883548/ -
After years of silence, a pulsar suddenly changes its spin three times
ⓘ NASA – Unsplash An artist’s illustration showing a neutron star …
#NewsBeep #News #Science #acceleration #Astronomy #Astrophysics #AU #Australia #benchmarks #Cosmos #Glitch #graphicscard #laptop #Murriyang #NASA #netbook #neutronstar #notebook #processor #PSRJ1637−4642 #pulsar #RadioAstronomy #reports #review #reviews #rotation #Sciencenews #Space #SpaceNews #spin #telescope #test #tests
https://www.newsbeep.com/au/883548/ -
📡 For the first time the ITU-R EPFD regulatory framework has been applied directly to radio telescope measurements. All-sky interferometric data show unintended emission from satellite mega-constellations exceeding the radio astronomy interference threshold in 50–70% of samples — against a 2% tolerance. Margins are negative: −18.6 to −16.3 dB. Preprint, 2 Sep 2026.
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📡 Images from the Radio Galaxy Zoo citizen science project were used to pretrain very small vision models (~6M parameters) with LeJEPA. A University of Geneva team shows that self-supervised learning directly on radio astronomy data matches far larger models at radio galaxy morphology classification — cheaper and more scalable. Preprint, 31 Aug 2026.
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☀️ Solar radio astronomy, seen from Czechia: Dr Miroslav Bárta of the Solar Department at the Astronomical Institute of the Czech Academy of Sciences explains what ALMA in the Chilean Andes reveals about our nearest star, what Czech researchers focus on, and which upgrades will sharpen observations for other fields too. (In Czech.)
📅 4 Sep 2026
🔗 https://www.astro.cz/clanky/multimedia/hlubinami-vesmiru-s-dr-miroslavem-bartou-alma-a-nejblizsi-hvezda.html -
📡 The MIDAS survey is the deepest MWA map so far — the GAMA9 and GAMA23 fields at 215.7 MHz. Over 2,100 deg² of sky, nearly 100 hours of observing and a catalogue of 133,826 radio components above 5σ. Mosaics, RMS maps, catalogues and the full imaging pipeline are all released publicly.
📅 1 Sep 2026
🔗 https://arxiv.org/abs/2609.01405 -
📻 Radio meteors, August 2026: Felix Verbelen's monthly report of reflections recorded at Kampenhout (BE) on the VVS beacon frequency of 49.99 MHz. The Perseids peaked on 13 Aug; 52 reflections lasting over a minute were logged across the month. Raw hourly counts are published as CSV, ready for your own analysis.
📅 4 Sep 2026
🔗 https://www.emeteornews.net/2026/09/04/radio-meteors-august-2026/ -
🕳️✨ Erstes enges Paar extrem massereicher Schwarzer Löcher entdeckt 📡
Ein internationales Forschungsteam, an dem das Max-Planck-Institut für Radioastronomie beteiligt war, hat im Zentrum der Galaxie Markarian 501 etwas Außergewöhnliches gefunden: Es gibt Hinweise auf zwei supermassereiche Schwarze Löcher, die sich in einem extrem engen Orbit umeinander bewegen.
Beobachtungen über viele Jahre hinweg zeigen nicht nur einen, sondern gleich zwei Teilchenstrahlen (Jets), was ein starkes Indiz dafür ist, dass es sich um zwei „kosmische Giganten“ im letzten Stadium vor einer Verschmelzung handeln könnte.
Die beiden Schwarzen Löcher umrunden sich offenbar in nur rund 100 Tagen und könnten - kosmisch gesehen - schon in naher Zukunft miteinander verschmelzen. Dies ermöglicht einen seltenen Einblick in eine Phase, die bislang nur theoretisch vermutet wurde.🌌
#aktuelleforschung #radioastronomie #SchwarzesLoch #BlackHole #radioastronomy