We are pleased to announce our discovery of #GW241011 and #GW241110

Both come from binary black holes where one black hole is much larger than the other. The larger black holes have large spin. Could these black holes have formed in a previous merger?

https://ligo.org/science-summaries/GW241011-GW241110/

#O4IsHere #GW10Years #Astrodon

Our new paper on our LIGO Virgo KAGRA discovery of #GW241011 and #GW241110 is now published

https://doi.org/10.3847/2041-8213/ae0d54

These observations can tell us about the astrophysics of binary formation and test fundamental physics

#O4IsHere #GW10Years #Astrodon

Data for #GW241011 and #GW241110 are available to analyze from the Gravitaitonal Wave Open Science Center

https://doi.org/10.7935/3drz-8m81
https://doi.org/10.7935/46xh-t016

You can find lots of tutorials there too!

https://gwosc.org/tutorials/

#OpenScience #OpenData

Our #GW241011 and #GW241110 discovery paper is now on the arXiv

https://arxiv.org/abs/2510.26931

If you would like to catch up on the highlights, checkout out our Science Summary

https://ligo.org/science-summaries/GW241011-GW241110/

#O4IsHere #Astrodon

Not Their First Rodeo: Gravitational Wave Detectors Spot Merging Black Holes That Have Merged Before

https://aasnova.org/2025/10/28/not-their-first-rodeo-gravitational-wave-detectors-spot-merging-black-holes-that-have-merged-before/ by Kerry Hensley

AAS Nova report on our discovery of #GW241011 and #GW241110

#Astrodon

Not Their First Rodeo: Gravitational Wave Detectors Spot Merging Black Holes That Have Merged Before

The gravitational wave events GW241011 and GW241110 provide strong evidence for the growth of black holes through successive mergers.

AAS Nova

Spinning into the merging binary black hole family tree

https://astrobites.org/2025/11/21/gw-hierarchical-merger/ by Neev Shah

Astrobites report on the potential implications of our discovery of #GW241011 and #GW241110

#Astrodon

Spinning into the merging binary black hole family tree

Do black holes have a family tree? Read more in today's bite!

@LIGO Putting it on ArXiv although it's OA in the journal because ... it still drives citations?
@cosmos4u we want as many people to read about our science as possible
@LIGO @cosmos4u People read ArXiv not journals… it is the Meta-Journal 😉
@hfalcke @LIGO @cosmos4u for a lot of folks, skimming through astro-ph with the morning coffee is still a daily ritual. What's not on astro-ph, I will not know about until I hear about it in a conference!
@vicgrinberg @hfalcke @cosmos4u We hope that you enjoyed your coffee while taking a look at our paper
@LIGO @vicgrinberg @hfalcke In the dark ages before most 'top' astronomy journals went open access putting a paper on ArXiv doubled the citation rate (read this in an actual study ... found on ArXiv :-) - just wondered whether such an effect is still in place today: apparently it very much is.
@cosmos4u @LIGO @hfalcke would be interesting to look at the actual numbers today, though I'm not volunteering to obtain them :D
@vicgrinberg @LIGO @cosmos4u press releases are another line of communication actually…
@hfalcke @LIGO @cosmos4u true! But most papers I find super interesting in my subfield do not end up with press releases 😅
@vicgrinberg @LIGO @cosmos4u And I just don’t drink enough coffee to keep up to be honest 😉
@hfalcke @LIGO @cosmos4u tea? A big cup of black tea takes a long time, mine is giant, see evidence - but also, I mainly skim based on keywods.
@vicgrinberg @LIGO @cosmos4u I am a tap water fundamentalist - just pure water not from a bottle 😬
@vicgrinberg @hfalcke @LIGO @cosmos4u You'll need some good biscuits to go with this