John Ilee
@johnilee.bsky.social
Assembled in Yorkshire. STFC Ernest Rutherford Fellow & Associate Professor in Astrophysics at the University of Leeds.
Reposted by John Ilee
🔊Announcing a new Physics/Astro PhD scholarship scheme in Edinburgh, for students from a Black heritage, inc mixed Black background. Please help me spread the word. The scholarship covers all tuition fees, living costs & research travel. #blackinSTEM 🔭👩🔬⚛️
ℹ️: www.ph.ed.ac.uk/studying/pos...
ℹ️: www.ph.ed.ac.uk/studying/pos...
October 20, 2025 at 3:52 PM
🔊Announcing a new Physics/Astro PhD scholarship scheme in Edinburgh, for students from a Black heritage, inc mixed Black background. Please help me spread the word. The scholarship covers all tuition fees, living costs & research travel. #blackinSTEM 🔭👩🔬⚛️
ℹ️: www.ph.ed.ac.uk/studying/pos...
ℹ️: www.ph.ed.ac.uk/studying/pos...
Reposted by John Ilee
We can see Io rotate slightly over the hour-long timelapse, tracking volcanoes on its surface!
And check out the Conversation piece for a cool slider showing how NGC 1068 lines up perfectly with previous data from LBTI.
And check out the Conversation piece for a cool slider showing how NGC 1068 lines up perfectly with previous data from LBTI.
October 14, 2025 at 3:35 AM
We can see Io rotate slightly over the hour-long timelapse, tracking volcanoes on its surface!
And check out the Conversation piece for a cool slider showing how NGC 1068 lines up perfectly with previous data from LBTI.
And check out the Conversation piece for a cool slider showing how NGC 1068 lines up perfectly with previous data from LBTI.
Great to see our paper on methanol in TW Hya finally come out today (with Catherine Walsh and Jenny Calahan). A quick overview.... 🔭 ☄️ #radioastro
arxiv.org/abs/2510.04106
arxiv.org/abs/2510.04106
October 7, 2025 at 11:11 AM
Great to see our paper on methanol in TW Hya finally come out today (with Catherine Walsh and Jenny Calahan). A quick overview.... 🔭 ☄️ #radioastro
arxiv.org/abs/2510.04106
arxiv.org/abs/2510.04106
Reposted by John Ilee
Methanol emission tracing ice chemistry and dust evolution in the TW Hya protoplanetary disk
https://arxiv.org/pdf/2510.04106
John D. Ilee, Catherine Walsh, Jenny C. Calahan.
https://arxiv.org/pdf/2510.04106
John D. Ilee, Catherine Walsh, Jenny C. Calahan.
https://arxiv.org/abs/2510.04106
arXiv abstract link
arxiv.org
October 7, 2025 at 4:32 AM
Methanol emission tracing ice chemistry and dust evolution in the TW Hya protoplanetary disk
https://arxiv.org/pdf/2510.04106
John D. Ilee, Catherine Walsh, Jenny C. Calahan.
https://arxiv.org/pdf/2510.04106
John D. Ilee, Catherine Walsh, Jenny C. Calahan.
Reposted by John Ilee
Today is a special paper day for me: for the first time we can do chemistry in a circumplanetary disk around a planetary-mass companion! Gabriele Cugno and I used JWST to tease out the signal of CT Cha b, finding a rich carbon chemistry (7 molecules + 1 isotopolog detected)! arxiv.org/abs/2509.15209
September 19, 2025 at 3:22 PM
Today is a special paper day for me: for the first time we can do chemistry in a circumplanetary disk around a planetary-mass companion! Gabriele Cugno and I used JWST to tease out the signal of CT Cha b, finding a rich carbon chemistry (7 molecules + 1 isotopolog detected)! arxiv.org/abs/2509.15209
Reposted by John Ilee
A very cool result! Julo+ with a paper on “Stellar halo subtraction … with integral field spectroscopy… on the PDS70, HTLup, and YSES1 systems” showing that the YSES 1b #exoplanet has a lot of emission lines - H alpha , H beta, He I, Ca H and K triplets, Na in absorption… oh my! #astrodon ☄
September 16, 2025 at 7:17 AM
A very cool result! Julo+ with a paper on “Stellar halo subtraction … with integral field spectroscopy… on the PDS70, HTLup, and YSES1 systems” showing that the YSES 1b #exoplanet has a lot of emission lines - H alpha , H beta, He I, Ca H and K triplets, Na in absorption… oh my! #astrodon ☄
Reposted by John Ilee
My periodic reminder for #astrosci #astrodon #exoplanets Early Career Researchers to please, please, please have a simple web site with your current email address on it - rationale here: kenworthy.space/advice/
September 12, 2025 at 4:22 AM
My periodic reminder for #astrosci #astrodon #exoplanets Early Career Researchers to please, please, please have a simple web site with your current email address on it - rationale here: kenworthy.space/advice/
Sending my apologies to the reviewer for this one… 😬
September 10, 2025 at 8:41 AM
Sending my apologies to the reviewer for this one… 😬
Reposted by John Ilee
It is well within the power of journalists to simply stop interviewing this individual
August 12, 2025 at 8:03 PM
It is well within the power of journalists to simply stop interviewing this individual
Lots of fun today at John Smeaton Academy talking all about science, art, radio astronomy & building planets onboard the amazing Moon Palace. Thanks for having us and for all the amazing questions!
July 14, 2025 at 6:56 PM
Lots of fun today at John Smeaton Academy talking all about science, art, radio astronomy & building planets onboard the amazing Moon Palace. Thanks for having us and for all the amazing questions!
Reposted by John Ilee
I couldn’t agree more about those pretty public images… 😉
Sorry to have missed this great conference but huge thanks to everyone posting updates. It’s been great to follow along! #skao2025
Sorry to have missed this great conference but huge thanks to everyone posting updates. It’s been great to follow along! #skao2025
Great #SKAO2025 conference summary from McClure-Griffiths. Ups: Community! Real SKA image/dishes! So much SKA Precursor science! Downs: Timeline, especially for MID. Lessons: Pretty public images matter, data is difficult, telescopes are always delayed.
June 20, 2025 at 2:58 PM
I couldn’t agree more about those pretty public images… 😉
Sorry to have missed this great conference but huge thanks to everyone posting updates. It’s been great to follow along! #skao2025
Sorry to have missed this great conference but huge thanks to everyone posting updates. It’s been great to follow along! #skao2025
Reposted by John Ilee
First science talk at #skao2025 by Antonino Garufi about studying planet formation. Centimetre observations are critical to observing the growth of pebbles in planetary disks. 🧪 🔭 📡
June 16, 2025 at 10:25 AM
First science talk at #skao2025 by Antonino Garufi about studying planet formation. Centimetre observations are critical to observing the growth of pebbles in planetary disks. 🧪 🔭 📡
Reposted by John Ilee
[2506.10719] Ke Zhang et al.: The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): I. Program Overview and Summary of First Results. link
June 13, 2025 at 2:29 AM
[2506.10719] Ke Zhang et al.: The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): I. Program Overview and Summary of First Results. link
Reposted by John Ilee
We are hosting the 2025 UK & Ireland Discs meeting at the University of Hertfordshire (8-10 September). Topics include discs of all sorts, but especially protoplanetary discs and white dwarf debris discs.
Abstract submission deadline is 15 May:
ukidiscs.github.io/discs2025/
🔭🧪⚛️☄️
Abstract submission deadline is 15 May:
ukidiscs.github.io/discs2025/
🔭🧪⚛️☄️
About
The UK & Ireland Discs Meeting 2025
ukidiscs.github.io
May 7, 2025 at 12:38 PM
We are hosting the 2025 UK & Ireland Discs meeting at the University of Hertfordshire (8-10 September). Topics include discs of all sorts, but especially protoplanetary discs and white dwarf debris discs.
Abstract submission deadline is 15 May:
ukidiscs.github.io/discs2025/
🔭🧪⚛️☄️
Abstract submission deadline is 15 May:
ukidiscs.github.io/discs2025/
🔭🧪⚛️☄️
Reposted by John Ilee
exoALMA. X. channel maps reveal complex $^{12}$CO abundance distributions and a variety of kinematic structures with evidence for embedded planets. Christophe Pinte et. al. https://arxiv.org/abs/2504.18717
April 29, 2025 at 12:53 PM
exoALMA. X. channel maps reveal complex $^{12}$CO abundance distributions and a variety of kinematic structures with evidence for embedded planets. Christophe Pinte et. al. https://arxiv.org/abs/2504.18717
April 28, 2025 at 4:09 PM
Reposted by John Ilee
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
Reposted by John Ilee
Next we have Isaac Radley talking about a multiwavelength survey of the rho ophiucus star forming region, unveiling the hidden mass reservoir associated with planet formation. Data indicate that mass is present in larger dust grains. Radio surveys such as SKA will reveal more! #ukexom25
April 3, 2025 at 9:52 AM
Next we have Isaac Radley talking about a multiwavelength survey of the rho ophiucus star forming region, unveiling the hidden mass reservoir associated with planet formation. Data indicate that mass is present in larger dust grains. Radio surveys such as SKA will reveal more! #ukexom25
Reposted by John Ilee
[2502.04957] Lucy Evans et al.: ALMA reveals thermal and non-thermal desorption of methanol ice in the HD 100546 protoplanetary disk. link
February 10, 2025 at 6:52 AM
[2502.04957] Lucy Evans et al.: ALMA reveals thermal and non-thermal desorption of methanol ice in the HD 100546 protoplanetary disk. link
Reposted by John Ilee
New paper, by Leicester PhD student @simintong.bsky.social. Simin presents a new set of models which show that compact protoplanetary discs are a natural consequence of so-called ``dead zones'': regions where disc turbulence is low. 🔭
arxiv.org/abs/2502.04452
arxiv.org/abs/2502.04452
Compact protoplanetary discs can be produced by dead zones
Radially compact protoplanetary discs (<=50 au) are ubiquitous in nearby star-forming regions. Multiple mechanisms have been invoked to interpret various compact discs. In this paper, we propose that ...
arxiv.org
February 10, 2025 at 9:28 AM
New paper, by Leicester PhD student @simintong.bsky.social. Simin presents a new set of models which show that compact protoplanetary discs are a natural consequence of so-called ``dead zones'': regions where disc turbulence is low. 🔭
arxiv.org/abs/2502.04452
arxiv.org/abs/2502.04452