#gravitationalwave — Public Fediverse posts

The LIGO–Virgo–KAGRA Gravitational Wave Transient Catalog (GWTC) Release 4: https://iopscience.iop.org/collections/apjl-260303-220_Focus-on-GWTC-4__0 (with 7 papers) -> The Fourth Catalog of #GravitationalWave Events from LIGO, Virgo, and KAGRA: https://aasnova.org/2026/07/29/monthly-roundup-the-fourth-catalog-of-gravitational-wave-events-from-ligo-virgo-and-kagra/

Error signals for overcoming the laser power limits of #GravitationalWave detectors: https://iopscience.iop.org/article/10.1088/1361-6382/ae86aa -> New technique enables LIGO to peer farther into the distant universe: https://news.ucr.edu/articles/2026/07/21/new-technique-enables-ligo-peer-farther-distant-universe - thermal imaging could boost future gravitational-wave detectors.

Thick Lunar Crust Amplifies Deci-Hertz Gravitational-Wave Signals / Gravitational-Wave Tomography of the Moon: Constraining #Lunar Structure with Calibrated Gravitational Waves: https://journals.aps.org/prl/abstract/10.1103/d9jf-gxk5 / https://journals.aps.org/prl/abstract/10.1103/3tcp-hqf9 -> Plans for Moon-Based #GravitationalWave Detectors Get a Lift from Geology: https://physics.aps.org/articles/v19/s89 - a proposed gravitational-wave observatory on the #Moon might gather more information than previously thought, thanks to geology.

The LIGO facilities in the U.S. are the most sensitive #GravitationalWave detectors in the world - their future remains uncertain: https://bigthink.com/starts-with-a-bang/america-pioneered-gravitational-wave-research-now-it-may-leave-it-behind/

O4b Open Data Release: https://gwosc.org/news/o4b-open-data-release/ -> Open Data from LIGO, Virgo, and KAGRA through the Second Part of the Fourth Observing Run / Observations from the Second Part of the Fourth LIGO-Virgo-KAGRA Observing Run and Updates to the #GravitationalWave Transient Catalog: https://dcc.ligo.org/public/0206/P2600085/008/paper.pdf / https://dcc.ligo.org/public/0206/P2600152/006/gwtc-5_results_noauthors_flattened.pdf -> The new LIGO–Virgo–KAGRA Catalog sets new records in precision gravitational astronomy / Black Hole Discoveries Abound in Newly Released LIGO-Virgo Catalog / Astrophysicists strike black gold with treasure trove of gravitational wave detections / Scientists find the Universe has multiple ways of manufacturing black holes / The new LIGO-Virgo-KAGRA catalog sets records in precision gravitational-wave astronomy: https://www.virgo-gw.eu/news/the-new-ligo-virgo-kagra-catalog-sets-new-records-in-precision-gravitational-astronomy/ / https://www.simonsfoundation.org/2026/05/26/black-hole-discoveries-abound-in-newly-released-ligo-virgo-catalog/ / https://www.gla.ac.uk/news/headline_1267010_en.html / https://www.ozgrav.org/news/scientists-find-the-universe-has-multiple-ways-of-manufacturing-black-holes/ / https://www.aei.mpg.de/1449649/the-new-ligo-virgo-kagra-catalog-sets-records-in-precision-gravitational-wave-astronomy (with still more papers linked).

GW240925 and GW250207 - Astrophysical Calibration of Gravitational-wave Detectors: https://arxiv.org/abs/2605.11703 -> #GravitationalWave detectors can now “autotune” their signals: https://www.aei.mpg.de/1445425/gravitational-wave-detectors-can-now-autotune-their-signals - how “off-key” detector calibration can bias signal-based tests of Einstein’s general theory of relativity.

Gravitational-wave constraints on the pair-instability mass gap and nuclear burning in massive stars: https://www.nature.com/articles/s41550-026-02847-0 -> Biggest black holes built up in busy star clusters after series of violent merging events, research finds: https://www.eurekalert.org/news-releases/1126877 - team identifies two distinct black hole populations in version 4.0 of the #GravitationalWave Transient Catalog.

Sorry to anyone who has tried to access #gwchirp recently, but the SSL certificates expired and updating them got lost in my todo-list. Rest assured it has now been updated and available again at https://chirp.research.exeter.ac.uk/.

There's not been an awful lot to see of late, as the #Gravitationalwave network is mostly not actively observing, but we'll hopefully be ready to catch them when the new events start to pour in.

@benknispel
Besser 😀

Ich war vor einigen Jahren da und es ist einfach unglaublich, mit welchen Tricks so eine unfassbare Präzision erreicht wird.

@mpi_grav

#geo600 #Gravitationswelle #GravitationalWave

GWTC-4.0 - an Introduction to Version 4.0 of the #GravitationalWave Transient Catalog: https://iopscience.iop.org/article/10.3847/2041-8213/ae0c06 -> The latest crop of space-time wobbles includes a variety of heavy, fast-spinning, and lopsided colliding black holes: https://physics.mit.edu/news/new-catalog-more-than-doubles-the-number-of-gravitational-wave-detections-made-by-ligo-virgo-and-kagra-observatories/ / New catalog of LIGO-Virgo-KAGRA observations published: https://www.aei.mpg.de/1415736/new-catalog-of-ligo-virgo-kagra-observations-published - the latest catalog, GWTC-4, includes 128 new candidates from the fourth observing run, more than doubling the previous total.

Record-breaking gravitational wave puts Einstein’s relativity to its toughest test yet — and proves him right again

When you buy through links on our articles, Future and its syndication partners may earn a commission. An…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #AlbertEinstein #Blackholes #Einstein'stheory #Gravitationalwave #gravity #KeefeMitman #StephenHawking
https://www.newsbeep.com/us/467733/

Strategy for Identifying Vera C. #Rubin Observatory #Kilonova Candidates for Targeted #GravitationalWave Searches: https://iopscience.iop.org/article/10.3847/1538-4357/ae244e -> How Many Kilonovae Will Rubin Observatory Help Us Spot? https://aasnova.org/2026/02/04/how-many-kilonovae-will-rubin-observatory-help-us-spot/

Preferential Accretion onto the Secondary Black Hole Strengthens Gravitational-wave Signals: https://iopscience.iop.org/article/10.3847/1538-4357/ae1133 -> Boosting the #GravitationalWave Background: https://aasnova.org/2025/12/03/boosting-the-gravitational-wave-background/

The final #GravitationalWave candidate of O4? #S251117dq

If real, the source is probably a binary black hole (chirp mass ~22–44 solar masses)

False alarm rate 1 in 5.4×10^6 yr
GraceDB https://gracedb.ligo.org/superevents/S251117dq/
GCN https://gcn.nasa.gov/circulars/42727
Rating 🦉🥐🏔️

#Astrodon #O4IsHere

Last night's #GravitationalWave candidate #S251116en

If real, the source is probably a binary black hole (chirp mass ~22–44 solar masses)

False alarm rate 1 in 24,000 yr
GraceDB https://gracedb.ligo.org/superevents/S251116en
GCN https://gcn.nasa.gov/circulars/42708
Rating 🦆🦆🎀

#Astrodon #O4IsHere

Oo! Interesting #GravitationalWave candidate #S251112cm potentially from a *subsolar* mass source

If real, the source probably has chirp mass ~0.1–0.87 solar masses

False alarm rate 1 in 6.2 yr
GraceDB https://gracedb.ligo.org/superevents/S251112cm/
GCN https://gcn.nasa.gov/circulars/42650
Rating 📏🍬

#Astrodon #O4IsHere

An evening stroll #GravitationalWave candidate #S251108fi

If real, the source is probably a binary black hole (chirp mass ~11–44 solar masses)

False alarm rate 1 in 24000 yr
GraceDB https://gracedb.ligo.org/superevents/S251108fi/
GCN https://gcn.nasa.gov/circulars/42624
Rating 🦢🎼⛄

#Astrodon #O4IsHere

#GravitationalWave candidate #S251108dn

If real, the source is probably a binary black hole (chirp mass ~5.5–11 solar masses). A glitch in Livingston may impact analysis

False alarm rate 1 in 3.3 10^9 yr
GraceDB https://gracedb.ligo.org/superevents/S251108dn
GCN https://gcn.nasa.gov/circulars/42619
Rating 🧙🚧🍕

#Astrodon #O4IsHere

Celebrate Wednesday with #GravitationalWave candidate #S251105aj

If real, the source is probably a binary black hole (chirp mass ~22–44 solar masses)

False alarm rate 1 in 39000 yr
GraceDB https://gracedb.ligo.org/superevents/S251105aj/
GCN https://gcn.nasa.gov/circulars/42587
Rating 🟦🍰🦢

#Astrodon #O4IsHere

#GravitationalWave candidate #S251103f

If real, the source is probably a binary black hole (chirp mass ~11–22 solar masses)

False alarm rate 1 in 7.6×10^5 yr
GraceDB https://gracedb.ligo.org/superevents/S251103f
GCN https://gcn.nasa.gov/circulars/42564
Rating 🦆🍁🍦

#Astrodon #O4IsHere

Halloween #GravitationalWave candidate #S251031cq

If real, the source is probably a binary black hole (chirp mass ~22–44 solar masses)

False alarm rate 1 in 45 yr
GraceDB https://gracedb.ligo.org/superevents/S251031cq
GCN https://gcn.nasa.gov/circulars/42529
Rating 👻🍫

#Astrodon #O4IsHere

Snoozy-time #GravitationalWave candidate #S251026bn

If real, the source is probably a binary black hole (chirp mass ~5.5–11 solar masses)

False alarm rate 1 in 6600 yr
GraceDB https://gracedb.ligo.org/superevents/S251026bn/
GCN https://gcn.nasa.gov/circulars/42462 https://gcn.nasa.gov/circulars/42465
Rating 🍨🐑🍁

#O4IsHere #Astrodon

Applications are currently open for the Nordic Winter School on #BlackHoles and #GravitationalWave . Doctoral students and postdocs can apply, it takes place in January 2026 in Norway. #physics #conference #phd
https://indico.nbi.ku.dk/event/2225/

Celebrate Diwali with #GravitationalWave candidate #S251021u

If real, the source is probably a binary black hole (chirp mass ~22–88 solar masses)

False alarm rate 1 in 14 yr
GraceDB https://gracedb.ligo.org/superevents/S251021u
GCN https://gcn.nasa.gov/circulars/42373
Rating 🎆🐍

#Astrodon #O4IsHere

My afternoon nap interrupted by #GravitationalWave candidate #S251018bi

If real, the source is probably a binary black hole (chirp mass ~22–88 solar masses)

False alarm rate 1 in 100 yr
GraceDB https://gracedb.ligo.org/superevents/S251018bi
GCN https://gcn.nasa.gov/circulars/42357
Rating 🐌🍦🍂

#Astrodon #O4IsHere

This afternoon's #GravitationalWave candidate #S251014cn

If real, the source is probably a binary black hole (chirp mass ~11–22 solar masses)

False alarm rate 1 in 100 yr
GraceDB https://gracedb.ligo.org/superevents/S251014cn
GCN https://gcn.nasa.gov/circulars/42255
Rating 🍪🧋🦆

#Astrodon #O4IsHere

Catching up with #GravitationalWave candidate #S251013x

If real, the source is probably a binary black hole (chirp mass ~22–88 solar masses)

False alarm rate 1 in 2.1 yr
GraceDB https://gracedb.ligo.org/superevents/S251013x
GCN https://gcn.nasa.gov/circulars/42212 https://gcn.nasa.gov/circulars/42220
Rating 🐶🐞

#Astrodon #O4IsHere