I finally got around to updating the transit modelling package I maintain for single/mono & duotransiting planets - MonoTools github.com/hposborn/Mon.... You can also pip install/upgrade. The previous version was in dependency hell due to PyMC3 but this one uses pymc(v5) simplifying installation.
GitHub.con
June 6, 2025 at 9:11 PM
I finally got around to updating the transit modelling package I maintain for single/mono & duotransiting planets - MonoTools github.com/hposborn/Mon.... You can also pip install/upgrade. The previous version was in dependency hell due to PyMC3 but this one uses pymc(v5) simplifying installation.
Reposted by Hugh Osborn
Birchgletscher collapse, before and after.
May 28, 2025 at 3:30 PM
Birchgletscher collapse, before and after.
Reposted by Hugh Osborn
👀 Plato's eyes are growing!
✅ The activities to assemble our terrestrial planet hunting mission are progressing well, with 24 of the spacecraft’s 26 cameras now installed by OHB in Germany.
Read more 👉 www.esa.int/Science_Expl...
🔭 🧪
#exoplanets #instrumentation
✅ The activities to assemble our terrestrial planet hunting mission are progressing well, with 24 of the spacecraft’s 26 cameras now installed by OHB in Germany.
Read more 👉 www.esa.int/Science_Expl...
🔭 🧪
#exoplanets #instrumentation
May 8, 2025 at 8:24 AM
👀 Plato's eyes are growing!
✅ The activities to assemble our terrestrial planet hunting mission are progressing well, with 24 of the spacecraft’s 26 cameras now installed by OHB in Germany.
Read more 👉 www.esa.int/Science_Expl...
🔭 🧪
#exoplanets #instrumentation
✅ The activities to assemble our terrestrial planet hunting mission are progressing well, with 24 of the spacecraft’s 26 cameras now installed by OHB in Germany.
Read more 👉 www.esa.int/Science_Expl...
🔭 🧪
#exoplanets #instrumentation
Reposted by Hugh Osborn
Nice to see this research note on K2-18b from @astrojake.bsky.social, which demonstrates that a flat line (i.e. no spectral features) is a good fit to the MIRI data.
#exoplanet 🪐 🔭
arxiv.org/abs/2504.15916
#exoplanet 🪐 🔭
arxiv.org/abs/2504.15916
April 23, 2025 at 1:16 PM
Nice to see this research note on K2-18b from @astrojake.bsky.social, which demonstrates that a flat line (i.e. no spectral features) is a good fit to the MIRI data.
#exoplanet 🪐 🔭
arxiv.org/abs/2504.15916
#exoplanet 🪐 🔭
arxiv.org/abs/2504.15916
Reposted by Hugh Osborn
𝗡𝗼, 𝗮 𝗯𝗶𝗼𝘀𝗶𝗴𝗻𝗮𝘁𝘂𝗿𝗲 𝘄𝗮𝘀 𝗻𝗼𝘁 𝗷𝘂𝘀𝘁 𝗱𝗲𝘁𝗲𝗰𝘁𝗲𝗱 𝗶𝗻 𝗞𝟮-𝟭𝟴𝗯'𝘀 𝗮𝘁𝗺𝗼𝘀𝗽𝗵𝗲𝗿𝗲.
K2-18b is back in the news, now with a bold claim that biosignature molecules (DMS and/or DMDS) have been 'detected at 3σ'.
Most exoplanet astronomers are extremely sceptical about these claims, let's see why (1/n).
🔭🧪🪐 #exoplanet
K2-18b is back in the news, now with a bold claim that biosignature molecules (DMS and/or DMDS) have been 'detected at 3σ'.
Most exoplanet astronomers are extremely sceptical about these claims, let's see why (1/n).
🔭🧪🪐 #exoplanet
April 17, 2025 at 4:08 PM
𝗡𝗼, 𝗮 𝗯𝗶𝗼𝘀𝗶𝗴𝗻𝗮𝘁𝘂𝗿𝗲 𝘄𝗮𝘀 𝗻𝗼𝘁 𝗷𝘂𝘀𝘁 𝗱𝗲𝘁𝗲𝗰𝘁𝗲𝗱 𝗶𝗻 𝗞𝟮-𝟭𝟴𝗯'𝘀 𝗮𝘁𝗺𝗼𝘀𝗽𝗵𝗲𝗿𝗲.
K2-18b is back in the news, now with a bold claim that biosignature molecules (DMS and/or DMDS) have been 'detected at 3σ'.
Most exoplanet astronomers are extremely sceptical about these claims, let's see why (1/n).
🔭🧪🪐 #exoplanet
K2-18b is back in the news, now with a bold claim that biosignature molecules (DMS and/or DMDS) have been 'detected at 3σ'.
Most exoplanet astronomers are extremely sceptical about these claims, let's see why (1/n).
🔭🧪🪐 #exoplanet
Maybe I'm just a grumpy villager about to be eaten, but I can't bring myself to read another over-hyped press release from the same boy who has already claimed he saw a wolf 5 times with barely any evidence...
April 17, 2025 at 10:22 AM
Maybe I'm just a grumpy villager about to be eaten, but I can't bring myself to read another over-hyped press release from the same boy who has already claimed he saw a wolf 5 times with barely any evidence...
Reposted by Hugh Osborn
🚨New Episode out now featuring the ever enthusiastic Dr Ben Pope from University of Queensland in Australia. Ben talks with the team about all things exoplanets🪐, stars✨, and instrumentation🛰️, including how to track solar flares using tree rings! 🌲https://www.exocast.org/exocast-77b/
January 16, 2025 at 8:39 AM
🚨New Episode out now featuring the ever enthusiastic Dr Ben Pope from University of Queensland in Australia. Ben talks with the team about all things exoplanets🪐, stars✨, and instrumentation🛰️, including how to track solar flares using tree rings! 🌲https://www.exocast.org/exocast-77b/
Reposted by Hugh Osborn
Y'all @esa.int mission Gaia was truly the lil' engine that could. It operated for 10+ years, unlocking both the nearby galaxy all the way to billions stars across the Milky Way. A triumph of investing in necessary, unglamorous measurements that touch all areas of galactic astronomy. #AAS245 🔭🧪
January 15, 2025 at 1:29 PM
RIP ESA's Gaia mission. Your legacy in astronomy will live on for decades... Partly because we won't actually get your last data release for decades.
January 15, 2025 at 8:37 AM
RIP ESA's Gaia mission. Your legacy in astronomy will live on for decades... Partly because we won't actually get your last data release for decades.
I feel like overleaf should really automatically ask "Hey - do you want this document you've worked on for a week to become the default .tex file?".
I say that as someone who now has two sets of detailed comments... on a completely out-of-date version of a document 🤦♂️
I say that as someone who now has two sets of detailed comments... on a completely out-of-date version of a document 🤦♂️
January 15, 2025 at 8:35 AM
I feel like overleaf should really automatically ask "Hey - do you want this document you've worked on for a week to become the default .tex file?".
I say that as someone who now has two sets of detailed comments... on a completely out-of-date version of a document 🤦♂️
I say that as someone who now has two sets of detailed comments... on a completely out-of-date version of a document 🤦♂️
The brain is a strange thing. For whatever reason, I struggle to consciously tie a neat bow when e.g. gift wrapping... but if I imagine the string/thread/etc is somewhere near my foot and let my subconscious shoe-tying muscle memory take over, I get a perfect bow every time.
December 31, 2024 at 6:35 PM
The brain is a strange thing. For whatever reason, I struggle to consciously tie a neat bow when e.g. gift wrapping... but if I imagine the string/thread/etc is somewhere near my foot and let my subconscious shoe-tying muscle memory take over, I get a perfect bow every time.
It's great to convert an unused 1.5m telescope for exoplanet observations... but I have always been confused by this new spectrograph at ESO's La Silla in Chile. It's named PLATOspec but has no official connection to the PLATO mission. And 3m/s won't be precise enough to be very useful either.
The brand new instrument PLATO Spec has seen first light and is ready for hunting exoplanets! 🪐
It will find stars hosting exoplanets by detecting changes in the star’s light, as it wobbles due to the planet’s gravitational pull.
Discover more ➡️ https://www.eso.org/public/announcements/ann24019/
It will find stars hosting exoplanets by detecting changes in the star’s light, as it wobbles due to the planet’s gravitational pull.
Discover more ➡️ https://www.eso.org/public/announcements/ann24019/
PLATO Spec, the new instrument at ESO’s La Silla Observatory is now ready for exoplanet research
PLATO Spec, the new instrument at ESO’s La Silla Observatory is now ready for exoplanet research
www.eso.org
December 18, 2024 at 2:53 PM
It's great to convert an unused 1.5m telescope for exoplanet observations... but I have always been confused by this new spectrograph at ESO's La Silla in Chile. It's named PLATOspec but has no official connection to the PLATO mission. And 3m/s won't be precise enough to be very useful either.
I have worked on & off on ESA's planet-hunting #PLATO mission for the last 7.5yrs, and it's kinda crazy to me that, when I get the question "so when will it launch?" in 3 weeks time, I will actually be able to answer "the end of next year".
December 9, 2024 at 9:08 PM
I have worked on & off on ESA's planet-hunting #PLATO mission for the last 7.5yrs, and it's kinda crazy to me that, when I get the question "so when will it launch?" in 3 weeks time, I will actually be able to answer "the end of next year".
A brief intro:
I'm Hugh Osborn, and I like finding exoplanets 🔭. Currently I'm a Postdoc at the University of Bern & ETH Zurich. I search for hints of undetected sub-Neptune planets with NASA's TESS mission, and confirm them with ESA's Cheops telescope.
I'm Hugh Osborn, and I like finding exoplanets 🔭. Currently I'm a Postdoc at the University of Bern & ETH Zurich. I search for hints of undetected sub-Neptune planets with NASA's TESS mission, and confirm them with ESA's Cheops telescope.
December 9, 2024 at 9:01 PM
A brief intro:
I'm Hugh Osborn, and I like finding exoplanets 🔭. Currently I'm a Postdoc at the University of Bern & ETH Zurich. I search for hints of undetected sub-Neptune planets with NASA's TESS mission, and confirm them with ESA's Cheops telescope.
I'm Hugh Osborn, and I like finding exoplanets 🔭. Currently I'm a Postdoc at the University of Bern & ETH Zurich. I search for hints of undetected sub-Neptune planets with NASA's TESS mission, and confirm them with ESA's Cheops telescope.