Christopher Berry
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cplberry.bsky.social
Christopher Berry
@cplberry.bsky.social
Gravitational-wave astrophysicist. University of Glasgow Senior Lecturer. Science, education, LEGO & cake. May contain traces of nuts

🐘 https://mastodon.online/@cplberry
🐦 https://twitter.com/cplberry
📚 https://cplberry.com
Reposted by Christopher Berry
Wild story. Global spread of African Swine Flu is said to be depriving Amur tigers of their wild boar prey in remote Siberia. The swine flu link looks conjectural but plausible in this account.
Another case of panzootic consequences?
November 10, 2025 at 10:36 AM
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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 🦢🎼⛄

[🧪🔭⚛️]
November 8, 2025 at 8:55 PM
#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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 🧙🚧🍕

[🧪🔭⚛️]
November 8, 2025 at 12:56 PM
Reposted by Christopher Berry
one thing ive thought for awhile is the messaging around clean energy has been atrocious

“what if you never had to pay for gas again” feels like it would resonate more than “we need to bring CO2 levels down”
November 7, 2025 at 1:56 PM
Reposted by Christopher Berry
All the lectures for the first #LISASchool that was held at Ecole de physique des Houches on Oct 7-17 2025 are now available on Youtube! 📽️

Check them out here 👉 www.youtube.com/playlist?lis...
November 6, 2025 at 4:28 PM
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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 🟦🍰🦢

[🧪🔭⚛️]
November 5, 2025 at 1:58 PM
Reposted by Christopher Berry
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?

ligo.org/science-summ...

#O4IsHere 🔭🧪⚛️☄️
October 29, 2025 at 1:58 PM
#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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 🦆🍁🍦

[🧪🔭⚛️]
November 4, 2025 at 11:00 AM
More discoveries to look forward to, including more overlap with Rubin observations! 🔭🧪
🔭Our fourth observing run is due to end on November 18. However, we now expect to have a 6 month observing run in 2026–27 to begin in the late summer/early fall of 2026, with detectors participating as available

observing.docs.ligo.org/plan/

☄️🧪⚛️
IGWN | Observing Plans
observing.docs.ligo.org
November 4, 2025 at 10:06 AM
Reposted by Christopher Berry
Can't even take a bath in peace!!
November 1, 2025 at 4:04 PM
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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 👻🍫

[🧪🔭⚛️]
October 31, 2025 at 9:10 PM
Reposted by Christopher Berry
Are you a grad student interested in writing for Astrobites, or do you know one? We're recruiting! Apply by November 26 :)

astrobites.org/2025/10/31/a...
Apply to Write for Astrobites 2025!
Love astronomy, astrophysics, and science communication? Come join the Astrobites team! Applications due November 26th.
astrobites.org
October 31, 2025 at 6:40 PM
Reposted by Christopher Berry
Delighted to share a couple of new articles in this expanding collection. First off, here's 'Gravitational waves from core-collapse supernovae with no electromagnetic counterparts' by Jade Powell and Bernhard Müller
iopscience.iop.org/article/10.1...
Classical and Quantum Gravity @ioppublishing.bsky.social is celebrating the 10th anniversary of the first Gravitational Wave detection with a focus issue guest edited by Katerina Chatziioannou and Peter Shawhan: iopscience.iop.org/collections/...
October 31, 2025 at 10:04 AM
Reposted by Christopher Berry
For 61 years the #BBCWorldService has been broadcasting the latest in science via its weekly Science in Action programme. That dies in the next half hour, with this final edition, reflecting on the fall in trust in expertise driven by malign interests over recent years.
October 30, 2025 at 8:28 PM
Reposted by Christopher Berry
glad to see Chase’s work being brought up again !!
Back in 2010, my PhD student Chase Kimball led a study of the population of binary black holes that found evidence for repeated mergers

arxiv.org/abs/2011.05332

There were still lots of uncertainties then. Now, these new discoveries are great candidates for hierarchical mergers!

🔭🧪⚛️☄️ #O4IsHere
October 28, 2025 at 6:55 PM
Back in 2010, my PhD student Chase Kimball led a study of the population of binary black holes that found evidence for repeated mergers

arxiv.org/abs/2011.05332

There were still lots of uncertainties then. Now, these new discoveries are great candidates for hierarchical mergers!

🔭🧪⚛️☄️ #O4IsHere
October 28, 2025 at 6:46 PM
Reposted by Christopher Berry
43 years ago today, readers the world over opened their newspapers and gazed upon cow tools for the first time. happy birthday cow tools. you look great.
October 28, 2025 at 12:23 PM
Reposted by Christopher Berry
Wind power has cut at least £104bn from UK energy bill since 2010

- the cost of avoided gas and gas-fired power plants significantly outweiged subsidies for wind power

Story by @fionaharvey.bsky.social
www.theguardian.com/environment/...
Wind power has cut £104bn from UK energy costs since 2010, study finds
Reduction comes from energy generated from windfarms and lower cost of gas owing to lower demand
www.theguardian.com
October 28, 2025 at 10:32 AM
Reposted by Christopher Berry
...aaaand Melissa is now the strongest tropical cyclone ever measured in the satellite era.

T8.5 = 185kt
October 28, 2025 at 4:10 AM
Reposted by Christopher Berry
As the single most important news story this year, I can't wait to see the detailed and central coverage this will get in every media outlet we have
‘Change course now’: humanity has missed 1.5C climate target, says UN head
Exclusive: ‘Devastating consequences’ now inevitable but emissions cuts still vital, says António Guterres in sole interview before Cop30
www.theguardian.com
October 28, 2025 at 1:00 AM
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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42... gcn.nasa.gov/circulars/42...
Rating 🍨🐑🍁

[🧪🔭⚛️]
October 27, 2025 at 8:53 AM
Reposted by Christopher Berry
love fall beary mush 🐻🍄🍂 #art #illustration
October 25, 2025 at 9:00 PM
Reposted by Christopher Berry
📌 Annual Industry Showcase Programme
🥗 Networking Lunch
🌍 External partners share real-world challenges
🧭 Doctoral researchers pitch research project plans
🧩 Hackathon-style sessions where teams co-create solutions to challenges
📢 Closing presentations
👉Register: www.divein.org.uk/2025/10/16/a...
October 23, 2025 at 3:53 PM
Reposted by Christopher Berry
In Super Mario 3D Land, the welcome screen that is displayed when starting the game for the first time appears to be much less enthusiastic about the game in the European version compared to the US version.
October 21, 2025 at 3:45 PM