Astrophysicist making galaxies crash and computers collide. Or the other way round. Research professor in astrophysics at CNRS / Strasbourg Observatory, France
Joined March 2014
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Finally watched the #OpeningCeremony
I wondered why the torch went back on the Seine. And then... THEN! This unforgettable image of the cauldron! An obvious reference to the pioneers of aviation. Until I realized it went back to the exact same place, 241 years later!
Unbelievable, unforgettable, incredible. Creativity, originality, excellence, elegance, fashion, passion, harmony in the diversity, modernity celebrating history. Universality.
Being in the wild, I've only seen small bits of the #OpeningCeremony Looks epic and grandiose, and I can't wait to watch it in full🤩
In the mean time, this opening ceremony is quite good too... #yosemite
Fed up showing always the same videos in conferences,? Make a new one!
In a gas-rich clumpy galaxy (maybe like the Milky Way 10 billion years ago), the gaseous structures are very complex and turbulent. Not your grandma's interstellar medium.
youtu.be/aL6NjIkm7Dg
Lund Uni is one of these magical places where moving people around and looking away solve harassment and violence. It hasn't worked for 16 years and 37+ complaints, but you never know! Now astronomy has been shut down and astronomers have been expelled...
nature.com/articles/d41586-0…
...so the harassment and bullying can continue. When I understood that the law and ethics would never prevail in this uni, I looked for an exit door (and got incredibly lucky to be offered my dream job). But I fear ...
There are conference dinner venues... and there is THIS conference dinner venue. #IAPnewsim23
#OTD exactly 8 years ago, I saw my very first #northernlights from a plane over Greenland. Many cold nights later, I think my photo techniques have slightly improved 😜
Florent Renaud retweeted
This a reminder that Astronomy & Astrophysics (A&A) Letters are not only Open Access but free for all astronomers in the world. aanda.org/articles/aa/full_h…
Florent Renaud retweeted
#astrosh
For three years, my colleague @SyksyRasanen and I have defended ourselves against allegations of aggravated defamation, after we spoke out against the appointment of Christian Ott, whom Caltech had found to have harassed two students. Today, we were acquitted. 1/8
Florent Renaud retweeted
We decorated the @ObsStrasbourg, in front of the @CTS_Strasbourg "Observatoire" tram station, with a 30m-wide galactic panorama made from @ESAGaia Gaia data, using CDS tools.
It represents the whole galactic plane between latitudes -6° and +6°.
Florent Renaud retweeted
🆕Excited to announce Arrakihs as the latest member of the @esascience fleet!
Set to launch in the early 2030s, this fast-class mission will image faint nearby galaxies, providing important measurements to test open questions in #cosmology.
More info 👉 cosmos.esa.int/web/call-for-…
ALT Two images of faint galaxies
Florent Renaud retweeted
Now it is official! ESA has just approved our ESA fast-mission ARRAKIHS, devoted to explore stellar halos of nearby Milky Way-like galaxies. This mission was inspired in our deep imaging project with amateur telescopes one decade ago. A dream come true! ciencia.gob.es/Noticias/2022…
For the time in 8 (?) years, I have created an account on a social media #Mastodon
Follow me on:
➡️ @[email protected]
(The first ones to follow will likely enjoy witnessing some stupid things I do trying to understand how this new stuff works...)
Sometimes when galaxies meet, one gets scattered in shells around the other. In his first paper 😀, @AstroJPetersson shows how this process strongly alters star formation, even quenching it (without AGN!), and why dense shells cannot form stars in situ.
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