@jorgepullin.bsky.social
Physicist, motorcyclist, bagpiper, marathon runner, blogger, open access editor.
Rainy Christmas eve in Córdoba, Argentina.
December 24, 2025 at 10:30 PM
Rainy Christmas eve in Córdoba, Argentina.
HAM6 is now empty, ready for the upgrade in January. @ LIGO - Livingston
December 18, 2025 at 4:40 PM
HAM6 is now empty, ready for the upgrade in January. @ LIGO - Livingston
We built a "teflon highway" to drag the output mode cleaner suspension out of HAM6 onto a stand for transporting it (it weighs around 45 kilos). @ LIGO - Livingston
December 17, 2025 at 10:29 PM
We built a "teflon highway" to drag the output mode cleaner suspension out of HAM6 onto a stand for transporting it (it weighs around 45 kilos). @ LIGO - Livingston
The output mode cleaner is out of HAM6. @ LIGO - Livingston
December 16, 2025 at 7:07 PM
The output mode cleaner is out of HAM6. @ LIGO - Livingston
Removing the optical elements from HAM6 in preparation for the installation in January of the new suspension we just finished building. @ LIGO - Livingston
December 12, 2025 at 11:49 PM
Removing the optical elements from HAM6 in preparation for the installation in January of the new suspension we just finished building. @ LIGO - Livingston
The suspension construction is nearing its end. We will apply the final touches in January. @ LIGO - Livingston
December 11, 2025 at 11:45 PM
The suspension construction is nearing its end. We will apply the final touches in January. @ LIGO - Livingston
Passed my forklift operator test today. @LIGO - Livingston
December 10, 2025 at 3:44 PM
Passed my forklift operator test today. @LIGO - Livingston
We created optical paths to feed the laser into the output mode cleaners. The collapsible mirror (green arrow) allows us to send the light to the mode cleaner on the left or the one on the right. @LIGO - Livingston
December 9, 2025 at 12:55 AM
We created optical paths to feed the laser into the output mode cleaners. The collapsible mirror (green arrow) allows us to send the light to the mode cleaner on the left or the one on the right. @LIGO - Livingston
The output mode cleaners are in position. The one on the left has its charmingly called "butter dish cover" on. @LIGO - Livingston
December 6, 2025 at 4:50 PM
The output mode cleaners are in position. The one on the left has its charmingly called "butter dish cover" on. @LIGO - Livingston
We applied First Contact™ cleaning solution to the output mode cleaner to remove some smudging produced by the packaging used to ship it. @ LIGO - Livingston
December 5, 2025 at 5:47 PM
We applied First Contact™ cleaning solution to the output mode cleaner to remove some smudging produced by the packaging used to ship it. @ LIGO - Livingston
We completed our setup and used it to characterize the photodiodes (red arrow) to be used in the suspension. @LIGO Livingston
December 4, 2025 at 3:21 PM
We completed our setup and used it to characterize the photodiodes (red arrow) to be used in the suspension. @LIGO Livingston
We transported the doors of the Allegro gravitational wave detector to LIGO Livingston, in preparation for transporting the whole detector.
November 26, 2025 at 4:19 PM
We transported the doors of the Allegro gravitational wave detector to LIGO Livingston, in preparation for transporting the whole detector.
We glued the Fluorel™ stops which will keep the output mode cleaners in place. Parts will now be baked. @LIGO - Livingston
November 25, 2025 at 2:54 PM
We glued the Fluorel™ stops which will keep the output mode cleaners in place. Parts will now be baked. @LIGO - Livingston
Finished the Run the Runway 5k in 52', an interesting race on the Baton Rouge Airport Runway.
November 22, 2025 at 6:43 PM
Finished the Run the Runway 5k in 52', an interesting race on the Baton Rouge Airport Runway.
The laser conditioning setup outside the clean room. The light enters into the latter via an optical fiber. Photo courtesy of Maryrose Barrios. @LIGO - Livingston
November 22, 2025 at 12:30 AM
The laser conditioning setup outside the clean room. The light enters into the latter via an optical fiber. Photo courtesy of Maryrose Barrios. @LIGO - Livingston
Reposted
Sad but pleased to release today our homage to LIGO’s wonderful Rai Weiss, who passed away in September just shy of his 93rd birthday. It is Episode 10 of our 9-year @ligo.org YouTube video series. In our last interview, he insisted that @NSF “is the hero of LIGO.” 🧪
youtu.be/hsiyG6Y0t4M
youtu.be/hsiyG6Y0t4M
EPISODE10 - "RAI WEISS: LIGO'S HEART AND SOUL
YouTube video by Advanced LIGO Documentary Project
youtu.be
November 20, 2025 at 4:56 PM
Sad but pleased to release today our homage to LIGO’s wonderful Rai Weiss, who passed away in September just shy of his 93rd birthday. It is Episode 10 of our 9-year @ligo.org YouTube video series. In our last interview, he insisted that @NSF “is the hero of LIGO.” 🧪
youtu.be/hsiyG6Y0t4M
youtu.be/hsiyG6Y0t4M
Foggy morning at @ LIGO - Livingston
November 19, 2025 at 2:51 PM
Foggy morning at @ LIGO - Livingston
Reposted
Our fourth LIGO @egovirgo.bsky.social KAGRA observing run has now drawn to a close. We will be busy analysing data for a while to come—watch out for more discovery announcements.
We will be back next year observing.docs.ligo.org/plan/
We will be back next year observing.docs.ligo.org/plan/
IGWN | Observing Plans
observing.docs.ligo.org
November 18, 2025 at 4:10 PM
Our fourth LIGO @egovirgo.bsky.social KAGRA observing run has now drawn to a close. We will be busy analysing data for a while to come—watch out for more discovery announcements.
We will be back next year observing.docs.ligo.org/plan/
We will be back next year observing.docs.ligo.org/plan/
Reposted
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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 🦆🦆🎀
[🧪🔭⚛️]
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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 🦆🦆🎀
[🧪🔭⚛️]
November 17, 2025 at 9:40 AM
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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 🦆🦆🎀
[🧪🔭⚛️]
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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 🦆🦆🎀
[🧪🔭⚛️]
Reposted
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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 🦉🥐🏔️
[🧪🔭⚛️]
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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 🦉🥐🏔️
[🧪🔭⚛️]
November 18, 2025 at 1:11 PM
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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 🦉🥐🏔️
[🧪🔭⚛️]
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 gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42...
Rating 🦉🥐🏔️
[🧪🔭⚛️]
Reposted
Ireland winning goal and end of match with Irish commentary
November 16, 2025 at 4:30 PM
Ireland winning goal and end of match with Irish commentary
Speaking at the US Space and Rocket Center in Huntsville, Alabama.
November 16, 2025 at 9:24 PM
Speaking at the US Space and Rocket Center in Huntsville, Alabama.
Started laying out the optical components needed to steer laser light into the suspension for testing @LIGO - Livingston
November 12, 2025 at 7:51 PM
Started laying out the optical components needed to steer laser light into the suspension for testing @LIGO - Livingston
We received the output mode cleaners for the suspension @LIGO Livingston.
November 11, 2025 at 12:36 AM
We received the output mode cleaners for the suspension @LIGO Livingston.