@jorgepullin.bsky.social
70 followers 77 following 110 posts
Physicist, motorcyclist, bagpiper, marathon runner, blogger, open access editor.
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jorgepullin.bsky.social
Classic car show, Natchitoches, LA
jorgepullin.bsky.social
The suspension is coming along nicely. @LIGO - Livingston
jorgepullin.bsky.social
After helicoiling the suspended mass (under cloth) I proceeded to helicoil the "picture frame" @ LIGO - Livingston
jorgepullin.bsky.social
Started a new build today. A single suspension for the new homodyne readout. All 340 of those threads you see there need to be helicoiled. Got through about 200 today. @LIGO Livingston.
jorgepullin.bsky.social
The Dixons immigrated from Scotland a couple of centuries earlier. Local genealogists have found connections to those historical figures. Personally, I find all this rather dubious. But if you wish, I won't mind being called "your royal highness" from now on 🤣
dixonclan.wordpress.com/pedigrees-an...
jorgepullin.bsky.social
Fun Saturday factoid: It appears I'm a descendent of William the Conqueror and Charlemagne. My grandmother, Elizabeth Dixon, was born in County Meath (currently Westmeath), Ireland,
in 1871.
jorgepullin.bsky.social
At the 25th anniversary gala at the Perimeter Institute for Theoretical Physics in Waterloo, Ontario, Canada. @perimeterinstitute.ca
Reposted
cplberry.bsky.social
Yesterday's #GravitationalWave candidate #S250917aq

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

False alarm rate 1 in 2.9×10^5 yr
GraceDB gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/41... gcn.nasa.gov/circulars/41...
Rating 🍰🐑🦢

[🧪🔭⚛️]
Updated sky localization. 90% area 5216 sq deg. Updated three-dimensional sky localization. Distance around 700 Mpc.
Reposted
giaime.net
Here are some more photos from the 10th anniversary event at LIGO Livingston: Gabriela González, LSU Pres. Matt Lee, Bryan Wallace—advisor to the La. Governor, and the assembled audience.
Gabriela González speaking in front of a projection screen that shows a caricature of Einstein surfing on a gravitational wave. LSU's interim President Matt Lee, speaking from a stage Brian Wallace, senior advisor to the La. Governor, speaking from podium. Group of people seated in an auditorium
Reposted
giaime.net
#GW10Years
giaime.net
Gabriela González gives the keynote at LIGO Livingston’s celebration of the 10th anniversary of our detection of gravitational waves.
Reposted
giaime.net
@clargrune.bsky.social of The Advocate covered the 10th anniversary of our GW detection. www.theadvocate.com/baton_rouge/...
Amid concerns over potential cuts, Livingston's LIGO scientists mark 10th anniversary of monumental discovery BY CLAIRE GRUNEWALD | Staff writer Sep 14, 2025

A signal lasting less than a second traveled about 1.3 billion light years before it reached an obser vatory deep in the piney woods of Livingston 10 years ago.
The brief signal — caused by a pair of black holes colliding - the first gravitational waves ever detected, and it created a new way for scientists to look into the uni-verse.
The Sept. 14, 2015, detection con-tirmed a key prediction of Albert Einstein's general theory of rela-tivity, earned the Nobel Prize in physics and kick-started a new era of astronomy.
"Most of us had figured that with nature being perverse, that the first signal would be really hard to pull out of the noise. And then the signal came beautifully, beautifully clear," said Joseph Giaime, head of the Laser Interferometer Gravitational-Wave Observatory in Livingston.
jorgepullin.bsky.social
Measuring the transfer functions of a double suspension @ LIGO - Livingston
jorgepullin.bsky.social
www.nola.com/news/ligo-li...
Louisiana scientists first detected gravitational waves from black holes 10 years ago. What's next?
jorgepullin.bsky.social
Few people seem to remember that 10 years ago, at the time a gravitational wave was detected by LIGO, Einstein's apartment in Bern was being declared a historic monument
jorgepullin.bsky.social
Top center is Rai Weiss' Nobel Medal and in the bottom left the Princess of Asturias Prize statue created by Joan Miró
jorgepullin.bsky.social
For the 10th anniversary of the first gravitational wave detection they prepared an exhibit at the LIGO Science Education Center with "The people of LIGO" and the cabined with various prizes the Collaboration has received. At LIGO Livingston.
Reposted
cplberry.bsky.social
Friday #GravitationalWave candidate #S250912f

If real, the source is probably a binary black hole (chirp mass ~44–88 solar masses)

False alarm rate 1 per 1.1×10^5 yr
GraceDB gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/41... gcn.nasa.gov/circulars/41...
Rating 🐠🍫🐚

[🧪🔭⚛️]
Updated sky localization. 90% area 300 sq deg. Updated three-dimensional volume localization. Distance around 2.7 Gpc.
Reposted
cplberry.bsky.social
Latest #GravitationalWave candidate #S250911ac

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

False alarm rate 1 per 5.3 yr
GraceDB gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/41... gcn.nasa.gov/circulars/41...
Rating 🍨🦒

[🧪🔭⚛️]
Updated sky localization. 90% area 950 sq deg. Updated three-dimensional volume localization. Distance 1.1 Gpc.