Catching up on #GravitationalWave candidate #S240421ar

If real, the source is probably a binary black hole

False alarm rate 1 in 0.88 yr
GraceDB gracedb.ligo.org/superevents/S2…
GCN gcn.nasa.gov/circulars/36205
Rating 🕊️🌅

#O4IsHere

Si vous habitez à Nice, ou dans les environs, et que vous vous posez des questions sur les trous noirs, alors venez nous les poser mercredi prochain au Like(s)! Retweetez svp pour que l'info se propage suffisamment. 🙏 Merci! 🙂

Had some fun giving a seminar at my home institution about #GW230529 ✨

Shared the excitement surrounding this event + highlighted the importance of understanding priors and models we use to interpret this event 😎

OCA Laboratoire Lagrange UMR Artemis #GravitationalWaves

As an OzGrav member from 2018-23, and now affiliate, I can say this Centre of Excellence is truly excellent! ✨

OzGrav 2.0 will achieve awesome things. Also excited to be visiting some of the nodes very soon! 😄

Beware of people asking for quick favors and their capacity to destroy any work-life-health balance you might have

Le trou noir stellaire le plus massif de la Galaxie vient d'être découvert: Gaia BH3. Il se trouve 'seulement' à 2000 années-lumière, ça vous dit d'en savoir plus?
Thread👇
© ESO/M. Kornmesser

Woaaaah! 🤩

Biggest BH found in our home galaxy + masses on par with black holes we’ve since with gravitational waves (which are extragalactic sources) lying in the peaked regions of the mass spectrum 😮

How many more of these are out there?!

✨ A serendipitous discovery uncovers a sleeping giant!

Wading through ESA Gaia data, scientists have uncovered a record-holding stellar black hole 🕳️ right in our galaxy 👉 esa.int/Science_Explor…

Indeed so very close! 😮

And putting my bias aside… I like this plot too! It's showing clumps of matter on planet-scale sizes, so planets being born! (see all those lil arrows) and I think it's the first evidence of this?!

That is some pretty cool stuff 😎

Not long left to vote folks (<2hrs) 😮
And it’s a pretty close race!

#GW230529 #GravitationalWaves LIGO EGO & the Virgo Collaboration KAGRA Gravitational Wave Observatory

Supernova alert for the Southern Hemisphere astronomers. Fairly new and bright right now, will slowly fade away. Capture the death of a star for a limited time only! ⚰️ #ngc3621 (C11/QHY268M .. 1.5 hours on April 12)

La mort des étoiles vue par 4 images du JWST.
En fin de vie, elles expulsent du gaz et de la poussière, enrichis en atomes qu'elles ont mis des millions ou des milliards d'années à créer dans leurs cœurs.

The power of three detectors online!

Now we just need a BNS when all detectors are in observing mode 🤞

#GravitationalWaves #O4IsHere

Ok Astro Plot of the Week, I gotta nominate this simple yet cool plot from the LIGO-EGO & the Virgo Collaboration-KAGRA Gravitational Wave Observatory collaboration

Behold, #GW230529 🤩
It’s an event in the mass gap!

Paper here: arxiv.org/abs/2404.04248
+ you can recreate it using our scripts doi.org/10.5281/zenodo… 😎