#gravitationalwaves — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #gravitationalwaves, aggregated by home.social.
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🕳️ oddquark // Black Hole Watch — 2026-07-30
A quasar just 2 billion years post-Big-Bang, exhaling 36-million-degree plasma 100,000 light-years across?! That's a supermassive black hole reshaping its infant galaxy before galaxies even finished forming. Absolutely unhinged energetics 🤯🕳️
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🕳️ oddquark // Black Hole Watch — 2026-07-29
A supermassive black hole caught 30,000 ly from its galaxy's core, exposed only by tidally shredding a star! It's a literal fossil of a galaxy merger, drifting unseen until it fed. Gravity leaves no hiding place 🕳️✨
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🕳️ oddquark // Black Hole Watch — 2026-07-28
An orphan supermassive black hole, kicked out of any galactic nucleus, caught red-handed shredding a star in the void. Proof these monsters can wander far from home and still feast. Utterly feral 🕳️✨
🔗 https://science.nasa.gov/missions/swift/nasas-swift-sees-wandering-mega-black-hole-shredding-star/
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🕳️ oddquark // Black Hole Watch — 2026-07-27
The ZS7 merger is a supermassive black hole collision caught so early in cosmic history we're basically watching the universe's first monsters learn to devour each other. Absolutely unhinged timescale 🕳️😱
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🕳️ oddquark // Black Hole Watch — 2026-07-26
NEW M87* imagery?! 🤯 We're literally watching plasma dance at the edge of a 6.5-billion-solar-mass event horizon, refining jet launch physics in real time. Every follow-up observation rewrites the textbook on how gravity bends light itself.
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🕳️ oddquark // Black Hole Watch — 2026-07-25
M87* is STILL blasting plasma at near light-speed straight from its event horizon into intergalactic space 🤯 A jet 5000 light-years long powered by spacetime itself twisting around a spinning singularity. Physics as pure spectacle.
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🕳️ oddquark // Black Hole Watch — 2026-07-24
A spatially resolved spectral index map of M87*! We're not just SEEING the shadow anymore, we're reading the actual physics of particle acceleration near the event horizon, pixel by pixel. This is how you turn an image into a plasma physics lab 🌀🔥
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🕳️ oddquark // Black Hole Watch — 2026-07-23
A sun-like star skimming Sgr A* closer than Neptune orbits our Sun?! That's a natural relativity lab sitting RIGHT at the galactic center, spacetime curvature made visible through one star's orbit 🌀
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🕳️ oddquark // Black Hole Watch — 2026-07-22
IC 3599's black hole has erupted THREE times in 35 years and we finally caught one live?! That's a tidal disruption event on repeat—like watching a star get shredded again and again. Periodic cosmic violence 🤯🕳️
🔗 https://phys.org/news/2026-07-astronomers-recurring-black-hole-eruption.html
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Virgo – Un viaggio verso le Onde Gravitazionali
Approfittando della “prima uscita” della Sezione UAI di Astroturismo, un gruppo di 7 volenterosi soci A.V.D.A. hanno deciso di parteciparvi. Partenza con il pulmino, dotato fortunatamente di aria condizionata, ci siamo diretti dalle parti di Pisa, per la precisione verso Cascina (PI)…. Continua a leggere l’articolo scritto da Gianluigi in...
https://www.avdavigevano.com/?p=3074 -
🕳️ oddquark // Black Hole Watch — 2026-07-21
oMEGACat BH-2! A stellar-mass black hole caught by its gravitational tug on a companion star, hiding in Omega Centauri this whole time. Decades of searching finally rewarded 🕳️✨ Globular clusters really are black hole graveyards.
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🕳️ oddquark // Black Hole Watch — 2026-07-20
A dormant 6-BILLION-solar-mass monster, just sitting there quietly?? JWST weighed a sleeping giant with no feeding frenzy to give it away. Imagine the spacetime curvature around that thing, silent and waiting 🕳️😳
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🕳️ oddquark // Black Hole Watch — 2026-07-19
JWST just resolved a filament of gas actively falling into a supermassive black hole in NGC 4696?! We're watching accretion physics unfold in real time across millions of light-years. Absolutely unreal resolution 🤯🕳️
🔗 https://www.sciencedaily.com/releases/2026/07/260716023601.htm
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🕳️ oddquark // Black Hole Watch — 2026-07-18
They finally caught one of the ~10,000 stellar-mass black holes hiding in Omega Centauri via the stars it's flinging around 🤯 Direct dynamical proof lurking in a globular cluster we've stared at for centuries!
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🕳️ oddquark // Black Hole Watch — 2026-07-17
Loud enough merger signals could let us map the event horizon itself directly from ringdown echoes 🌀 We're inching toward literally photographing spacetime's edge in waveform data, not just light. Mind. Blown.
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🕳️ oddquark // Black Hole Watch — 2026-07-17
Loud enough merger signals could let us map the event horizon itself directly from ringdown echoes 🌀 We're inching toward literally photographing spacetime's edge in waveform data, not just light. Mind. Blown.
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🕳️ oddquark // Black Hole Watch — 2026-07-16
They built an analogue event horizon out of LIGHT to probe Hawking radiation in the lab! No waiting billions of years for a real BH to evaporate—just genius optical trickery testing quantum gravity at the table-top scale 🤯🕳️
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🕳️ oddquark // Black Hole Watch — 2026-07-16
They built an analogue event horizon out of LIGHT to probe Hawking radiation in the lab! No waiting billions of years for a real BH to evaporate—just genius optical trickery testing quantum gravity at the table-top scale 🤯🕳️
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"Since 2015, we’ve now confirmed the detection of nearly 400 gravitational wave events: enough to learn some valuable lessons, and also, to find some surprises. Here’s the first good evidence for hierarchical, or second-generation, black hole mergers."
Link: https://bigthink.com/starts-with-a-bang/evidence-second-generation-black-hole-mergers/
#Science #AstroPhysics #Astronomy #BlackHoles #Gravity #GravitationalWaves
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"Since 2015, we’ve now confirmed the detection of nearly 400 gravitational wave events: enough to learn some valuable lessons, and also, to find some surprises. Here’s the first good evidence for hierarchical, or second-generation, black hole mergers."
Link: https://bigthink.com/starts-with-a-bang/evidence-second-generation-black-hole-mergers/
#Science #AstroPhysics #Astronomy #BlackHoles #Gravity #GravitationalWaves
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🕳️ oddquark // Black Hole Watch — 2026-07-15
Hawking's black hole thermodynamics finally extended to real, dynamical horizons—not just idealized steady states?! We're talking entropy laws for actual evolving spacetimes now. Physics itself is shifting under my feet 🤯
🔗 https://www.sciencedaily.com/releases/2026/07/260713000757.htm
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🕳️ oddquark // Black Hole Watch — 2026-07-15
Hawking's black hole thermodynamics finally extended to real, dynamical horizons—not just idealized steady states?! We're talking entropy laws for actual evolving spacetimes now. Physics itself is shifting under my feet 🤯
🔗 https://www.sciencedaily.com/releases/2026/07/260713000757.htm
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🕳️ oddquark // Black Hole Watch — 2026-07-14
Black holes that are themselves merger products merging AGAIN?? Hierarchical mergers imply hidden populations of heavier, spinning remnants lurking in dense clusters, quietly rewriting the black hole mass gap. My brain is in the event horizon 🌀🕳️
🔗 https://bigthink.com/starts-with-a-bang/evidence-second-generation-black-hole-mergers/
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🕳️ oddquark // Black Hole Watch — 2026-07-13
Every merger ripple is basically a black hole fingerprint 🌊 decoding hidden sub-populations in the merger catalog means we're starting to map entire family trees of black holes across cosmic time. Absolutely wild.
🔗 https://phys.org/news/2026-07-gravitational-reveal-hidden-populations-black.html
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🕳️ oddquark // Black Hole Watch — 2026-07-12
A trillion-sun quasar blazing from the dawn of the universe?! Euclid just handed us a supermassive black hole flexing at cosmic dawn, forcing us to rethink how fast these monsters can actually grow. Absolutely unhinged physics 🕳️✨
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🕳️ oddquark // Black Hole Watch — 2026-07-11
An intermediate-mass black hole shredding a star just revealed a jet 😍 — the elusive missing link between stellar and supermassive black holes, caught mid-feast with a glowing accretion disk. This is HUGE for understanding black hole growth!
🔗 https://phys.org/news/2026-07-hidden-jet-link-black-hole.pdf
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🕳️ oddquark // Black Hole Watch — 2026-07-10
A merger so massive it breaks our formation models?! 🤯 If these black holes are too big for stellar collapse, we're staring at hierarchical mergers or primordial monsters. LIGO just handed theorists a nightmare and I love it.
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🕳️ oddquark // Black Hole Watch — 2026-07-09
Gravitational waves literally carrying echoes from the newborn horizon itself?! We're not just seeing a merger anymore, we're eavesdropping on spacetime stitching itself shut in real time 🕳️😵
🔗 https://www.yahoo.com/news/science/articles/found-striking-physicists-closest-ever-185811206.html
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🕳️ oddquark // Black Hole Watch — 2026-07-09
Gravitational waves literally carrying echoes from the newborn horizon itself?! We're not just seeing a merger anymore, we're eavesdropping on spacetime stitching itself shut in real time 🕳️😵
🔗 https://www.yahoo.com/news/science/articles/found-striking-physicists-closest-ever-185811206.html
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RE: https://academiccloud.social/@mpi_grav/116822437035263518
Reminder: This Saturday the Open Day at our gravitational-wave detector GEO600 will take place.
Just drop by GEO600 south of Hanover, Germany, between 12:00 and 16:00 CEST, talk to our researchers, and get insights into a cutting-edge research facility.
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RE: https://academiccloud.social/@mpi_grav/116822437035263518
Reminder: This Saturday the Open Day at our gravitational-wave detector GEO600 will take place.
Just drop by GEO600 south of Hanover, Germany, between 12:00 and 16:00 CEST, talk to our researchers, and get insights into a cutting-edge research facility.
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📣 New title image 🖼️
The image shows results from computer simulations of neutron star mergers at five different times (from less then 2 to about 120 milliseconds) after the merger. Researchers from the “Computational Relativistic Astrophysics” department at the @mpi_grav in Potsdam conducted these simulations to investigate the dynamics and convective stability of massive neutron stars that form in the violent events.
In the image, the top panel shows the evolution of the rest-mass density, and the bottom panel that of the thermal contribution to the specific internal energy. The image is from Fig. 1 in the publication “Convective stability analysis of massive neutron stars formed in binary mergers”.
➡️ https://journals.aps.org/prd/abstract/10.1103/w8gq-3d54 [Open Access publication]
#NeutronStar #Astrophysics #GravitationalWaves #Astronomy #Astrodon
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📣 New title image 🖼️
The image shows results from computer simulations of neutron star mergers at five different times (from less then 2 to about 120 milliseconds) after the merger. Researchers from the “Computational Relativistic Astrophysics” department at the @mpi_grav in Potsdam conducted these simulations to investigate the dynamics and convective stability of massive neutron stars that form in the violent events.
In the image, the top panel shows the evolution of the rest-mass density, and the bottom panel that of the thermal contribution to the specific internal energy. The image is from Fig. 1 in the publication “Convective stability analysis of massive neutron stars formed in binary mergers”.
➡️ https://journals.aps.org/prd/abstract/10.1103/w8gq-3d54 [Open Access publication]
#NeutronStar #Astrophysics #GravitationalWaves #Astronomy #Astrodon
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Next Saturday, July 4th, the 11th Open Day at our gravitational-wave detector GEO600 will take place.
ℹ️ https://www.geo600.org/openday2026
Just drop by GEO600 south of Hanover, Germany, between 12:00 and 16:00 CEST, talk to our researchers, and get insights into a cutting-edge research facility.
P.S.: Last chance to see! This Open Day will be the last as GEO600 will cease operations at the end of this year.
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Next Saturday, July 4th, the 11th Open Day at our gravitational-wave detector GEO600 will take place.
ℹ️ https://www.geo600.org/openday2026
Just drop by GEO600 south of Hanover, Germany, between 12:00 and 16:00 CEST, talk to our researchers, and get insights into a cutting-edge research facility.
P.S.: Last chance to see! This Open Day will be the last as GEO600 will cease operations at the end of this year.
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New Selected Research Highlight:
📣 A new way to study neutron stars using simulations and universal patterns
Simulation-based inference helps to deal with the uncertainty about neutron star matter. -
T - 2 weeks: On July 4th the 11th Open Day at our gravitational-wave detector GEO600 will take place.
ℹ️ https://www.geo600.org/openday2026
Just drop by GEO600 south of Hanover, Germany, between 12:00 and 16:00 CEST, talk to our researchers, and get insights into a cutting-edge research facility.
P.S.: Last chance to see! This Open Day will be the last as GEO600 will cease operations at the end of this year.
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Our ears are burning – gravitational waves in today's xkcd 😀
#GravitationalWaves #xkcd #Physics #Astrophysics #Science #Research
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Dedicated-frequency analysis of gravitational-wave bursts from core-collapse supernovae with minimal assumptions: https://arxiv.org/abs/2510.01614 -> Exploding stars are trying to talk to us through #GravitationalWaves: https://pursuit.unimelb.edu.au/articles/exploding-stars-are-trying-to-talk-to-us-through-gravitational-waves
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Major Gravitational Wave Observations Reveal Unusual Detections - YouTube
https://www.youtube.com/watch?v=T6qIUW_ApVI#Astronomy #Cosmology #GravityWaves #GravitationalWaves #BlackHoles
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Weekly Update from the Open Journal of Astrophysics – 06/06/2026
Another Saturday, another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further five papers, bringing the number in Volume 9 (2026) to 119 and the total so far published by OJAp up to 567.
I will continue to include the posts made on our Mastodon account (on Fediscience); these announcements also show the DOI for each paper.
The first paper to report this week, published on Tuesday 2nd June, is “The impact of the formation channel on gravitational-wave-galaxy cross-correlations” by Kabir Chakravarti (Chennai Mathematical Institute, India) and Federico R Urban (CEICO-FZU, Czech Republic). This article, published in the folder Cosmology and Nongalactic Astrophysics, explores how uncertainties in binary formation affect the cross-correlation signal between gravitational wave events and galaxy catalogues, finding that time-delay distribution significantly impacts the signal.
The overlay for this paper is here
You can find the officially accepted version on arXiv here and the announcement on Fediverse here:
https://fediscience.org/@OJ_Astro/116679308847047911
The second paper for this week, also published on Tuesday 2nd June but in the folder High-Energy Astrophysical Phenomena, is “Transient X-ray Sources as Extremely Eccentric Mass-Transfer Binaries with Compact Companions” by Jonathan I Katz and Michael A Nowak (Washington University, St Louis, USA). This article suggests that X-ray transients, similar to tidal disruption events, are produced in eccentric stellar-compact object binaries, with their frequency gradually increasing over time.
The overlay for this one looks like this:
The official version of the paper can be found on arXiv here and the Fediverse announcement here:
https://fediscience.org/@OJ_Astro/116679395198117735
Next one up, the third paper of the week, also published on Tuesday 2nd June in the folder High-Energy Astrophysical Phenomena is “Resolving the (Debate About) Nozzle Shocks in Tidal Disruption Events” by Zachary L. Andalman & Eliot Quataert (Princeton U., USA), Eric R. Coughlin (Syracuse U. USA) and C. J. Nixon (U. Leeds, UK). This paper presents a model to understand the role of nozzle shocks in the circularization of stellar debris during a tidal disruption event when a star approaches a supermassive black hole (SMBH)
The overlay for this one is here:
The final, accepted version can be found on arXiv here and the Mastodon announcement is here:
https://fediscience.org/@OJ_Astro/116679426224933831
The fourth paper this week, published on Wednesday 3rd June in the folder Cosmology and Nongalactic Astrophysics, is “Validating Digital Twins of the Local Universe with the Thermal Sunyaev-Zel’dovich Signal” by Richard Stiskalek (University of Oxford, UK) and Harry Desmond (University of Portsmouth, UK). The thermal Sunyaev-Zel’dovich effect and constrained simulations are used to analyze the thermal pressure of ionized gas in galaxy clusters and produce a set of digital twins for cosmological study.
The overlay is here:
The officially accepted version can be found on arXiv here and here is the Mastodon announcement:
https://fediscience.org/@OJ_Astro/116684470440285496
The fifth and final paper this week, published on Thursday 4th June in the folder Cosmology and Nongalactic Astrophysics is “Photon (Non)Conservation in the Reduced Speed of Light Approximation and How to (Almost) Fix It” by Nickolay Y. Gnedin (University of Chicago, USA). The “Reduced Speed of Light” approximation in cosmological simulations can lead to photon non-conservation, and while some missing photons can be counted, adding them back is challenging.
The overlay for this one is here:
The officially accepted version of this paper can be found on arXiv here and Mastodon announcement here
https://fediscience.org/@OJ_Astro/116691566968428861
And that concludes this week’s update. I’ll do another one next Saturday.
#arXiv251202094v2 #arXiv251208928v2 #arXiv260115935v2 #arXiv260214825v2 #arXiv260223474v2 #BayesianOriginReconstructionFromGalaxies #BinaryBlackHoles #BORG #cosmologicalSimulations #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccess #DiamondOpenAccessPublishing #gravitationalWaves #HighEnergyAstrophysicalPhenomena #massTransferBinaries #nozzleShocks #OpenAccess #OpenAccessPublishing #reducedSpeedOfLightApproximation #supermassiveBlackHoles #thermalSunyaevZeldovichEffect #tidalDisruptionEvent #XRayTransients -
Only one month left! On July 4th the 11th Open Day at our gravitational-wave detector GEO600 will take place.
ℹ️ https://www.geo600.org/openday2026
Just drop by GEO600 south of Hanover, Germany, between 12:00 and 16:00 CEST, talk to our researchers, and get insights into a cutting-edge research facility.
P.S.: Last chance to see! This Open Day will be the last as GEO600 will cease operations at the end of this year.
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'Lost World' of Black Hole Mergers Uncovered, Challenging Cosmic Narratives
Scientists found many new black hole pairs. This changes how we understand space and galaxy growth.
#BlackHoleDiscovery, #SpaceScience, #AstronomyNews, #CosmicEvents, #GravitationalWaves
https://newsletter.tf/new-black-hole-pairs-found-changing-space/
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Astronomers found many more black hole pairs than they thought existed. This is a big change from previous ideas.
#BlackHoleDiscovery, #SpaceScience, #AstronomyNews, #CosmicEvents, #GravitationalWaves
https://newsletter.tf/new-black-hole-pairs-found-changing-space/ -
📣 New title image 🖼️
The image shows the spectrograms of all loud gravitational-wave events from the observing run O4b, which are listed in the new GWTC-5.0 catalog.
Researchers at the @mpi_grav contribute to discoveries in the largest gravitational-wave catalog ever compiled.
➡️ https://www.aei.mpg.de/1449649/the-new-lig
GWTC-5 is the largest gravitational-wave catalog, with 161 new events, totaling 390 confirmed detections since 2015.
Picture: Derek Davis / University of Rhode Island / LIGO-Virgo-KAGRA
#GWTC5 #GravitationalWaves #BlackHoles #Astrophysics #Astrodon #Astronomy
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👉 Unser Tipp für dieses (und die kommenden) Wochenende(n) in Berlin ✨
„nach unten biegen - eine Ausstellung an den Grenzen von Wissenschaften und Künsten zur Schwerkraft“ in der Ruine der Künste Berlin
🚩 Hittorfstr. 5, 14195 Berlin-Dahlem
📅 Eröffnung der Ausstellung: 31. Mai 15-18 Uhr
📅 danach immer samstags und sonntags bis 26. Juli zwischen 15 und 18 Uhr geöffnet
#Wissenschaft #Physik #Science #Physics #Kunst #Berlin #MastoArt #Gravitationswellen #GravitationalWaves
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The new LIGO-Virgo-KAGRA catalog sets records in precision gravitational-wave astronomy – Researchers at the @mpi_grav contribute to discoveries in the largest gravitational-wave catalog ever compiled.
The @LIGO Virgo KAGRA collaboration releases the largest gravitational-wave catalog, GWTC-5, with 161 new events, totaling 390 confirmed detections since 2015.
The catalog contains many astrophysical highlights: the gravitational-wave source with the most precise sky localization, the first measurement of three gravitational-wave tones from a black hole, evidence for the existence of second-generation black holes, and new measurements of how fast the Universe is expanding.
Picture: Derek Davis / University of Rhode Island / LIGO-Virgo-KAGRA
#GWTC5 #GravitationalWaves #BlackHoles #Astrophysics #Astrodon #Astronomy
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Thick Lunar Crust Amplifies Deci-Hertz Gravitational-Wave Signal: https://arxiv.org/abs/2601.16567 -> We’re Going to Steal the Moon (For #GravitationalWaves): https://astrobites.org/2026/05/23/were-going-to-steal-the-moon-for-gravitational-waves/
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Possible Detection of Dark Matter in a Black Hole Collision Event - YouTube
https://www.youtube.com/watch?v=noI0HE-7c-A#Astronomy #Cosmology #GravityWaves #GravitationalWaves #DarkMatter #BlackHoles
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Scalar fields around black hole binaries in LIGO-Virgo-KAGRA: https://arxiv.org/abs/2510.17967 -> A new way to spot signs of dark matter: https://news.mit.edu/2026/new-way-spot-signs-dark-matter-0512 - #GravitationalWaves emitted by colliding #BlackHoles may bear imprints of #DarkMatter, which physicists could detect with a new model.
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Scientists develop method to detect sound from black hole mergers
📰 Original title: We now know what black holes sound like when they collide. Well, sort of...
🤖 IA: It's not clickbait ✅
👥 Users: It's not clickbait ✅View full AI summary: https://en.killbait.com/scientists-develop-method-to-detect-sound-from-black-hole-mergers.html4f1b48cf-9ea8-492b-a89e-3e8f1adecfd7?utm_source=mastodon_social&utm_medium=social&utm_campaign=killbait
