#gravitationalwave — Public Fediverse posts

Preprint out today: A short review of science to come from GWTC-4.0 and GWTC-5.0 put together with @daniel_williams

https://arxiv.org/abs/2609.03859

Catch up on some of the recent advances in #GravitationalWave astronomy

#Astrodon #GWTC4 #GWTC5

Preprint out today: A short review of science to come from GWTC-4.0 and GWTC-5.0 put together with @daniel_williams

https://arxiv.org/abs/2609.03859

Catch up on some of the recent advances in #GravitationalWave astronomy

#Astrodon #GWTC4 #GWTC5

Preprint out today: A short review of science to come from GWTC-4.0 and GWTC-5.0 put together with @daniel_williams

https://arxiv.org/abs/2609.03859

Catch up on some of the recent advances in #GravitationalWave astronomy

#Astrodon #GWTC4 #GWTC5

Preprint out today: A short review of science to come from GWTC-4.0 and GWTC-5.0 put together with @daniel_williams

https://arxiv.org/abs/2609.03859

Catch up on some of the recent advances in #GravitationalWave astronomy

#Astrodon #GWTC4 #GWTC5

Preprint out today: A short review of science to come from GWTC-4.0 and GWTC-5.0 put together with @daniel_williams

https://arxiv.org/abs/2609.03859

Catch up on some of the recent advances in #GravitationalWave astronomy

#Astrodon #GWTC4 #GWTC5

There's a brief update by @LIGO, Virgo, and KAGRA on the start of their next observing run.

The first intermediate run (IR1) is expected to begin early- to mid-November of 2026. It's duration is scheduled to be six months. The LIGO instruments will be slightly more sensitive than in the previous observing run O4. Virgo will join but with possible interruptions for maintenance and upgrade, and KAGRA will join later in the run as available.

You will find more information on our homepage: https://www.aei.mpg.de/gwastronomy

#GravitationalWave #astronomy #BlackHole #neutronstars #astrophysics #IR1

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