Simon
@astrosimon.bsky.social
📡 Astronomer
🌌 Look at galaxies from time to time
🌱 Plant enjoyer
🧑💻 astrosimon.gitlab.io/website/
🌌 Look at galaxies from time to time
🌱 Plant enjoyer
🧑💻 astrosimon.gitlab.io/website/
Reposted by Simon
God jul, nästa år vänder vi kampen mot fascismen till seger!
December 24, 2025 at 5:40 AM
God jul, nästa år vänder vi kampen mot fascismen till seger!
A week at IRAM 30m telescope 📡 ❄️ ✨
December 21, 2025 at 9:27 AM
A week at IRAM 30m telescope 📡 ❄️ ✨
Reposted by Simon
i’m excited to announce that i am hiring (again)!
i am looking for a postdoc in computational astrophysics that’s excited about models of stellar transients and multi-messenger astronomy to join my group (star stuff @ steward) at @uarizona.bsky.social!
apply here ✨💥: aas.org/jobregister/...
i am looking for a postdoc in computational astrophysics that’s excited about models of stellar transients and multi-messenger astronomy to join my group (star stuff @ steward) at @uarizona.bsky.social!
apply here ✨💥: aas.org/jobregister/...
Postdoctoral Research Associate I Computational Stellar Astrophysics (Steward Observatory) | American Astronomical Society
The University of Arizona (U of A) Department of Astronomy and Steward Observatory (SO) invites applications for a Postdoctoral Research Associate. The successful candidate will work with Professor Ca...
aas.org
November 10, 2025 at 10:25 PM
i’m excited to announce that i am hiring (again)!
i am looking for a postdoc in computational astrophysics that’s excited about models of stellar transients and multi-messenger astronomy to join my group (star stuff @ steward) at @uarizona.bsky.social!
apply here ✨💥: aas.org/jobregister/...
i am looking for a postdoc in computational astrophysics that’s excited about models of stellar transients and multi-messenger astronomy to join my group (star stuff @ steward) at @uarizona.bsky.social!
apply here ✨💥: aas.org/jobregister/...
Last day at the 11th IRAM 30m School ✨
November 7, 2025 at 1:16 PM
Last day at the 11th IRAM 30m School ✨
Sunset from the IRAM 30m telescope 📡
November 1, 2025 at 6:33 PM
Sunset from the IRAM 30m telescope 📡
First paper officially published! 🎉
It just took three years, one Master's thesis and half my Ph.D. 😅 The next one should come sooner, though! 🤗
www.aanda.org/articles/aa/...
#astronomy #extragalactic
It just took three years, one Master's thesis and half my Ph.D. 😅 The next one should come sooner, though! 🤗
www.aanda.org/articles/aa/...
#astronomy #extragalactic
October 31, 2025 at 8:22 AM
First paper officially published! 🎉
It just took three years, one Master's thesis and half my Ph.D. 😅 The next one should come sooner, though! 🤗
www.aanda.org/articles/aa/...
#astronomy #extragalactic
It just took three years, one Master's thesis and half my Ph.D. 😅 The next one should come sooner, though! 🤗
www.aanda.org/articles/aa/...
#astronomy #extragalactic
Reposted by Simon
Reposted by Simon
ayer pintando en una cafetería con amigos.. como tiene que ser
August 25, 2025 at 4:51 PM
ayer pintando en una cafetería con amigos.. como tiene que ser
Reposted by Simon
From Sandy Chiu: It is generally believed that the X-ray emission from cold-core clusters comes from hot gas. This paper explores another possibility: are these X-rays simply an illusion of inverse Compton scattering by cosmic rays? 🔭✨☄️
astrobites.org/2025/08/15/c...
astrobites.org/2025/08/15/c...
The Illusion of Cool Cores: X-ray Glows Powered by Cosmic Rays
It is generally believed that the X-ray emission from cold-core clusters comes from hot gas, where there is a delicate balance between gas cooling and feedback from active galactic nuclei. This paper ...
astrobites.org
August 17, 2025 at 10:14 PM
From Sandy Chiu: It is generally believed that the X-ray emission from cold-core clusters comes from hot gas. This paper explores another possibility: are these X-rays simply an illusion of inverse Compton scattering by cosmic rays? 🔭✨☄️
astrobites.org/2025/08/15/c...
astrobites.org/2025/08/15/c...
Reposted by Simon
Just think - if one million people turned off their wifi for one hour it would save enough electricity to run one ChatGPT data center for ten seconds
August 16, 2025 at 8:43 PM
Just think - if one million people turned off their wifi for one hour it would save enough electricity to run one ChatGPT data center for ten seconds
Reposted by Simon
Reposted by Simon
Happy Pint of Science to everyone around the world! Find a science 🧪 talk in a pub near you between now and Wed:
pintofscience.com
pintofscience.com
Home
Pint of Science brings scientists and researchers to discuss their latest research with you. Come meet, chat, have a drink with them and quench your thirst for knowledge.
pintofscience.com
May 19, 2025 at 7:32 PM
Happy Pint of Science to everyone around the world! Find a science 🧪 talk in a pub near you between now and Wed:
pintofscience.com
pintofscience.com
Reposted by Simon
L'amas des Pléiades en infrarouge. Cela permet de voir briller la poussière, qui absorbe la lumière des étoiles pour la re-émettre dans l'infrarouge. Le rendu est presque psychédélique!
©NASA, WISE, IRSA, Francesco Antonucci
©NASA, WISE, IRSA, Francesco Antonucci
May 6, 2025 at 1:27 PM
L'amas des Pléiades en infrarouge. Cela permet de voir briller la poussière, qui absorbe la lumière des étoiles pour la re-émettre dans l'infrarouge. Le rendu est presque psychédélique!
©NASA, WISE, IRSA, Francesco Antonucci
©NASA, WISE, IRSA, Francesco Antonucci
Reposted by Simon
Thousands of galaxies fill the frame as a glowing galaxy group sits near the centre. Purple X-rays reveal hot gas, while foreground stars shine with diffraction spikes. A stunning blend of Webb, Hubble, Chandra & XMM-Newton data.
Credit: ESA/Webb, NASA & CSA
Credit: ESA/Webb, NASA & CSA
April 29, 2025 at 5:19 PM
Thousands of galaxies fill the frame as a glowing galaxy group sits near the centre. Purple X-rays reveal hot gas, while foreground stars shine with diffraction spikes. A stunning blend of Webb, Hubble, Chandra & XMM-Newton data.
Credit: ESA/Webb, NASA & CSA
Credit: ESA/Webb, NASA & CSA
Reposted by Simon
New paper just dropped! 📝
This is the first paper I've been working on, 2.5 years ago when I started my Master's. I'm really happy to see how it turned out and grateful to CAVITY and especially to Bahar for giving me the opportunity to work on it 😁
arxiv.org/abs/2504.15359
#extragalactic
This is the first paper I've been working on, 2.5 years ago when I started my Master's. I'm really happy to see how it turned out and grateful to CAVITY and especially to Bahar for giving me the opportunity to work on it 😁
arxiv.org/abs/2504.15359
#extragalactic
Rendezvous in CAVITY: Kinematics and gas properties of an isolated dwarf-dwarf merging pair in a cosmic void region
Galaxy mergers are pivotal events in the evolutionary history of galaxies, with their impact believed to be particularly significant in dwarf galaxies. We report the serendipitous identification of an...
arxiv.org
April 23, 2025 at 5:36 AM
New paper just dropped! 📝
This is the first paper I've been working on, 2.5 years ago when I started my Master's. I'm really happy to see how it turned out and grateful to CAVITY and especially to Bahar for giving me the opportunity to work on it 😁
arxiv.org/abs/2504.15359
#extragalactic
This is the first paper I've been working on, 2.5 years ago when I started my Master's. I'm really happy to see how it turned out and grateful to CAVITY and especially to Bahar for giving me the opportunity to work on it 😁
arxiv.org/abs/2504.15359
#extragalactic
Reposted by Simon
NO ESPERA mi momento más heavy fue cuando El Españ0l (el periódico) hizo un artículo metiéndose conmigo y diciendo q soy una persona horrible por reírme de simon por ser francés
April 15, 2025 at 11:20 AM
NO ESPERA mi momento más heavy fue cuando El Españ0l (el periódico) hizo un artículo metiéndose conmigo y diciendo q soy una persona horrible por reírme de simon por ser francés
Reposted by Simon
Reposted by Simon
Reposted by Simon
Nouvelle image hallucinante du JWST. On ne voit pas une galaxie, mais deux!
Au centre, une galaxie en avant-plan, dont la masse dévie les rayons de lumière de celle de derrière, formant un anneau d'Einstein, prédit par la théorie de la Relativité générale en 1915.
Les masses dévient la lumière !
Au centre, une galaxie en avant-plan, dont la masse dévie les rayons de lumière de celle de derrière, formant un anneau d'Einstein, prédit par la théorie de la Relativité générale en 1915.
Les masses dévient la lumière !
March 27, 2025 at 9:52 AM
Nouvelle image hallucinante du JWST. On ne voit pas une galaxie, mais deux!
Au centre, une galaxie en avant-plan, dont la masse dévie les rayons de lumière de celle de derrière, formant un anneau d'Einstein, prédit par la théorie de la Relativité générale en 1915.
Les masses dévient la lumière !
Au centre, une galaxie en avant-plan, dont la masse dévie les rayons de lumière de celle de derrière, formant un anneau d'Einstein, prédit par la théorie de la Relativité générale en 1915.
Les masses dévient la lumière !
Reposted by Simon
Voilà.
Oui, la concentration en CO2 sur Terre a déjà été égale (ou supérieure) à la valeur contemporaine.
Seule (petite) différence : il lui a fallu des millions d'années pour atteindre ces niveaux. Pas 2 siècles (un clin d'œil à l'échelle des temps géologiques).
Oui, la concentration en CO2 sur Terre a déjà été égale (ou supérieure) à la valeur contemporaine.
Seule (petite) différence : il lui a fallu des millions d'années pour atteindre ces niveaux. Pas 2 siècles (un clin d'œil à l'échelle des temps géologiques).
For the first time ever, recorded atmospheric CO₂ has exceeded 430ppm! The last time CO₂ consistently reached today’s human-driven levels was ∼14 Million years ago, with shorter periods of similar levels around 3-5 Million years ago.
1/3
1/3
March 10, 2025 at 4:30 PM
Voilà.
Oui, la concentration en CO2 sur Terre a déjà été égale (ou supérieure) à la valeur contemporaine.
Seule (petite) différence : il lui a fallu des millions d'années pour atteindre ces niveaux. Pas 2 siècles (un clin d'œil à l'échelle des temps géologiques).
Oui, la concentration en CO2 sur Terre a déjà été égale (ou supérieure) à la valeur contemporaine.
Seule (petite) différence : il lui a fallu des millions d'années pour atteindre ces niveaux. Pas 2 siècles (un clin d'œil à l'échelle des temps géologiques).
Reposted by Simon
cuando me toque el momento seré capaz de hacer la defensa de la tesis sin desmayarme ? abriré apuestas
March 10, 2025 at 5:12 PM
cuando me toque el momento seré capaz de hacer la defensa de la tesis sin desmayarme ? abriré apuestas