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Planets @ Oxford

@oxoplanets.bsky.social
334 followers 36 following 149 posts

The BlueSky account for the Exoplanet and Planetary Physics groups in Oxford. We study all types of planetary bodies inside and outside of the solar system. More info here: www.physics.ox.ac.uk/research/theme…

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Reposted by Planets @ Oxford
ClimateBook @climatebook.bsky.social · 28/09/2026
I am pleased to advertise my public lecture on physics of climate, from Earth to exoplanets, at the CosmoCaixa science museum, Barcelona. cosmocaixa.org/es/p/fisica-...
cosmocaixa.org
Física del clima: de la Tierra a los exoplanetas | Conferencia | Museo de la ciencia CosmoCaixa
Consulta la información, programación y compra de entradas para la actividad Raymond T. Pierrehumbert: Física del clima. De la Tierra a los exoplanetas en el recinto Museo de la ciencia CosmoCaixa
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Planets @ Oxford @oxoplanets.bsky.social · 10/09/2026
Today we had the pleasure of hosting Francis Zong Lang from the University of Bern who gave a seminar about detecting terrestrial sized planets around M stars and even brown dwarfs! He also talked about how he is using his astrophysics skills to help inspire communities in Nigeria and Cameroon!
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Reposted by Planets @ Oxford
Harrison Nicholls @nichollsh.bsky.social · 29/07/2026
New paper on arXiv today! On the efficacy of using novel Bayesian machine learning to dispatch 'expensive' forward models of planetary evolution. This connects with #PLATO ageing and can help solve degeneracies in current static-retrieval approaches which treat #exoplanets as snapshots.
arxiv.org
Constraining the lives and times of exoplanets through evolutionary Bayesian retrievals
Static retrieval frameworks are leading tools for interpreting exoplanet observations, yet time-independent modelling leaves them prone to degeneracy and unable to resolve exoplanets' histories. The c...
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Planets @ Oxford @oxoplanets.bsky.social · 20/07/2026
Congratulations to Dr Jake Taylor (@astrojake.bsky.social) on the publication of his paper "A parameterised approach to disequilibrium retrievals in the JWST era: Application to NIRCam observations of HD 189733b" You can read it here: arxiv.org/abs/2607.06491
arxiv.org
A parameterised approach to disequilibrium retrievals in the JWST era: Application to NIRCam observations of HD 189733b
Atmospheric retrievals are a widely used technique for inferring the physical and chemical properties of exoplanetary atmospheres from observed spectra. A common simplifying assumption in such analyse...
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Planets @ Oxford @oxoplanets.bsky.social · 20/07/2026
Congratulations to Dr Mei Ting (Martha) Mak on the publication of her paper, "Flow-Driven Limb-Asymmetry of Haze Distribution Part I: An Analytical Framework for Predicting the Size Distribution of Photochemical Hazes Across the Two Limbs of hot-Jupiters" Read it here: arxiv.org/abs/2607.14845
arxiv.org
Flow-Driven Limb-Asymmetry of Haze Distribution Part I: An Analytical Framework for Predicting the Size Distribution of Photochemical Hazes Across the Two Limbs of hot-Jupiters
Photochemical haze, a common aerosol type expected to form in the atmospheres of hot-Jupiters, can become concentrated to different extents between the morning and evening limbs depending on the balan...
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Reposted by Planets @ Oxford
Jayne Birkby @jaynebirkby.bsky.social · 15/07/2026
Hide-and-seek champion award goes to the newly discovered beta Pic d! 🏆 Please welcome the newest member of the exoplanet zoo, and be kind, it’s a little shy, it’s been hiding in direct imaging data for over a decade!
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Jayne Birkby @jaynebirkby.bsky.social · 15/07/2026
Nice write up from @oxfordphysics.bsky.social on our contributions from Oxford to the beta Pic d discovery. Shout out to DPhil @luke-parker.bsky.social for some super VLT observations and Breakthrough Listen pre-doc Leyla Iskandarli for some deep data analysis! www.physics.ox.ac.uk/news/planet-...
physics.ox.ac.uk
Planet found after ten-year game of hide-and-seek
A planet that hid from astronomers for ten years has been found by a team including researchers from Oxford.
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Reposted by Planets @ Oxford
Harrison Nicholls @nichollsh.bsky.social · 09/07/2026
Delighted to share that I've been awarded two and complementary prizes for my PhD on magma ocean evolution and climate modelling. Firstly, Second Prize for computational physics by the Institute of Physics; secondly, part of the Early Career Medal by the UK Planetary Forum. Explainer below...
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Planets @ Oxford @oxoplanets.bsky.social · 09/07/2026
Our last Oxoplanets talk of #HoRS3S is by finishing DPhil student and incoming Schmidt AI in Science Fellow Luke Parker (advised by @jaynebirkby.bsky.social) on tracing cloud condensation and formation histories across the giant planet population with observations of silicon chemistry!
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Planets @ Oxford @oxoplanets.bsky.social · 08/07/2026
Today's Oxoplanets highlight at #HoRS3S is Breakthrough Listen DPhil Student Mitchell Yzer (advised by @jaynebirkby.bsky.social and @climatebook.bsky.social), with a poster on detecting technosignature greenhouse gases on nearby Earth-like exoplanets using high-resolution spectroscopy with METIS/ELT
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Planets @ Oxford @oxoplanets.bsky.social · 07/07/2026
Our first Oxoplanets talk at #HoRS3S was by Prof. @jaynebirkby.bsky.social on pre-ELT characterisation of small exoplanets at high spectral resolution!
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Planets @ Oxford @oxoplanets.bsky.social · 07/07/2026
Many of us Oxoplaneteers have now made the journey from Porto to Granada for #3HoRSES! Our first shoutout of the week is Dr. Mei Ting (Martha) Mak (Croucher Fellow @oxfordphysics.bsky.social), presenting a poster on the impact of photochemical haze on the chemistry of hot Jupiter atmospheres.
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Planets @ Oxford @oxoplanets.bsky.social · 05/07/2026
Good luck to all the Oxoplaneteers heading to Granada for #HoRS3S, special mention to Prof Jayne Birkby who will be giving a completely different talk compared to her #Exo6 talk! Watch this space for some updates.
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Reposted by Planets @ Oxford
Jayne Birkby @jaynebirkby.bsky.social · 05/07/2026
It's been a fantastic week at #Exoplanets6, much excitement, the field has kicked up to an even higher gear since #Exoplanets5, some very cool results landing soon on the arXiv! Next up, exoplanets in high resolution at #HoRS3S. Giddy up y'all! 🐎🤠
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Reposted by Planets @ Oxford
Niamh O’Sullivan @niamhk12.bsky.social · 26/05/2026
Officially finished my pre-doctoral fellowship at the CCA in New York investigating supergranulation in the wavelength domain! Thanks so much to everyone who made this such a wonderful experience, in particular my supervisors! Next, back to Oxford to write a thesis!
Certificate of completion for the CCA’s pre-doctoral fellowship. Pre-doc symposium talk entitled ‘Investigating Supergranulation in the Wavelength Domain’
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Planets @ Oxford @oxoplanets.bsky.social · 05/07/2026
Congratulations to Niamh O’Sullivan (@niamhk12.bsky.social) on her talk "The Search for Supergranulation across Spectral Types" at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Congratulations to former Oxoplanets member Dr Joost Wardenier on his talk “Results from two ultra-hot Jupiter programs with JWST/NIRSpec: the phase curve of WASP-76b and the secondary eclipse of KELT-20b” at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Oxoplanets past and present at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Congratulations to former Oxoplanets member Dr Ryan Boukrouche on his talk “Infrared heating hampers habitability around M stars” at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Congratulations to Leyla Iskandarli on her poster presentation at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Congratulations to Dr Jake Taylor (@astrojake.bsky.social) on his poster presentation at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Congratulations to John Allen on his poster presentation at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Congratulations to Dr Erik Meier (@erikmeier.bsky.social) on his poster presentation at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Congratulations to Alex McGinty (@alexmcginty.bsky.social) on his poster presentation at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Congratulations to Mitchell Yzer on his poster presentation at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Congratulations to Dr Martha Mak on her poster presentation at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Congratulations to Prof Tad Komacek (@tadkomacek.bsky.social) on his poster presentation at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Congratulations to Prof Jayne Birkby (@jaynebirkby.bsky.social) on her talk “FROM GAS GIANTS TO ROCKY WORLDS: ADVANCES FROM HIGH RESOLUTION SPECTROSCOPY OF EXOPLANET ATMOSPHERES” at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 04/07/2026
Congratulations to Luke Parker (@luke-parker.bsky.social) on his talk “Tracing cloud condensation and formation histories across the giant planet population with observations of silicon chemistry” at #Exo6!
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Planets @ Oxford @oxoplanets.bsky.social · 24/06/2026
Congratulations to Dr Ben Sutlieff (@bensutlieff.bsky.social), Luke Parker (@luke-parker.bsky.social), Prof. Jayne Birkby (@jaynebirkby.bsky.social), and Leyla Iskandarli on the discovery of beta Pic d! You can read more about their discovery here: arxiv.org/abs/2606.23801
arxiv.org
Direct Imaging Discovery of Giant Exoplanet $β$ Pictoris d: A Decade-Long Game of Hide-and-Seek
We report the direct imaging discovery of a third exoplanet in the $β$ Pictoris system. We detect $β$ Pictoris d in non-coronagraphic observations obtained with VLT/ERIS as well as multi-epoch archiva...
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Planets @ Oxford @oxoplanets.bsky.social · 22/06/2026
Today, we had a seminar given by PhD student Jared Splinter from McGill University. He talked about his work studying the atmosphere of WASP-121b using JWST. Both with NIRISS/SOSS and NIRSpec/G395H. The unpublished work he showed has made me very excited, looking forward to the paper!
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Planets @ Oxford @oxoplanets.bsky.social · 17/06/2026
Today’s SPIMAX seminar was given by PhD student Maddy Scott from the University of Birmingham. She talked about her work studying cold transiting exoplanets; and her push to increase this population! Very exciting things to come from her work!
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Reposted by Planets @ Oxford
Kevin Olsen @drksolsen.bsky.social · 11/06/2026
British Planetary Science Conference #BPSC2026 Emma and Bethan representing @oxfordphysics.bsky.social contributions to the @ukspaceagency.bsky.social UK Space Frontiers 2035 planning 🧪🔭 #planetsci
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Planets @ Oxford @oxoplanets.bsky.social · 10/06/2026
We had another seminar today, this time hosted by Prof Tad Komacek’s group (@tadkomacek.bsky.social). The seminar was given by Dr James Rogers from the University of Cambridge, he discussed all his work concerning sub-Neptunes and their interiors.
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Planets @ Oxford @oxoplanets.bsky.social · 10/06/2026
Today’s SPIMAX seminar was given by newly Dr Alix Freckelton from the University of Birmingham. She talked about the importance of knowing and understanding the properties of star, and how she has been building a uniform set of parameters using her pipeline PAWS!
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Reposted by Planets @ Oxford
Dr Jan Eldridge @astro-jje.bsky.social · 08/06/2026
Last year I was visited the Department of Physics at University of Oxford to give the 2025 Pride in Physics lecture. The live recording went wrong so here is the re-recorded version! youtu.be/KyQ--OldFRg Thank you @astrojake.bsky.social for inviting me and running this really important series!
youtu.be
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Planets @ Oxford @oxoplanets.bsky.social · 08/06/2026
Congratulations to DPhil student Luke Parker (@luke-parker.bsky.social) on the publication of his paper, "The CRIMSON survey I: super-stellar SiO in the directly imaged companion TWA 5 B from high-resolution M-band spectroscopy". You can read it here: arxiv.org/abs/2606.03824
arxiv.org
The CRIMSON survey I: super-stellar SiO in the directly imaged companion TWA 5 B from high-resolution M-band spectroscopy
Silicon is a key refractory element in giant planet atmospheres, which governs the formation of magnesium-silicate clouds, and reflects the quantity of silicates accreted during formation. While obser...
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Planets @ Oxford @oxoplanets.bsky.social · 08/06/2026
Congratulations to Dr Oscar Barragán (@exoscar.bsky.social) on the publication of his solo-authored paper, "A Model Selection Criterion for Multidimensional Gaussian Processes: Application to Radial Velocities". You can read it here: arxiv.org/abs/2606.04875
arxiv.org
A Model Selection Criterion for Multidimensional Gaussian Processes: Application to Radial Velocities
Multidimensional Gaussian Process (multi-GP) regression is widely used to disentangle stellar and planetary signals in radial velocities (RVs) by jointly modelling ancillary activity indicators. Howev...
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Planets @ Oxford @oxoplanets.bsky.social · 20/05/2026
Some great highlights from Ray about the work being presented at AbSciCon, very relevant to the work being conducted within the Oxford planetary groups!
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Planets @ Oxford @oxoplanets.bsky.social · 20/05/2026
Congratulations to DPhil student Mitchell Yzer for his talk at AbSciCon!
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Reposted by Planets @ Oxford
ClimateBook @climatebook.bsky.social · 18/05/2026
#abscicon2026 Now I am at the technosignature session, where Oxford PCD group doctoral student Mitch Yzer will be presenting his work on detection of technosignature gases.
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Planets @ Oxford @oxoplanets.bsky.social · 20/05/2026
Today, we have Dr Sergio Ramírez-Ramírez from the University of Warwick giving a seminar about white dwarfs and how their disks can teach us about the formation and evolution of planetary systems.
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Reposted by Planets @ Oxford
Linn Boldt-Christmas @nplinnspace.bsky.social · 10/05/2026
🔭 The amazing Claire Marie Guimond @xoplanets.bsky.social is so good at explaining all things (exo)geoscience! 🌋🌍 I learned so much in this A+ interview about… night-side volcanism?! Where energy dissipates through tidally-locked #exoplanets from molten dayside ➡️ volcanoes form on the other side! 🤯
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Reposted by Planets @ Oxford
ClimateBook @climatebook.bsky.social · 26/04/2026
Congratulations Sally! Best of luck in your postdoc. I'm looking forward to seeing more great work from you.
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Reposted by Planets @ Oxford
Department of Physics at the University of Oxford @oxfordphysics.bsky.social · 29/04/2026
PhD opportunity: join Dr Katherine Shirley’s infrared spectroscopy team to advance techniques and experiments that can maximise the science returned from upcoming landers and orbital spacecraft.  More: www.ox.ac.uk/admissions/graduate/co…
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Planets @ Oxford @oxoplanets.bsky.social · 26/04/2026
Congratulations to @sallyblumenthal.bsky.social on her successful thesis defence on Friday, 24 April!! She's pictured here with her examiners Prof. Paul Rimmer (Cambridge) and Prof. Neil Bowles (Oxford). She'll next be starting a postdoc at Vanderbilt in July, working with Keivan Stassun.
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Reposted by Planets @ Oxford
ClimateBook @climatebook.bsky.social · 24/04/2026
Congratulations to Dr. Sally Blumenthal,my student who just successfully defended her thesis at Oxford! Great work, Sally, and many thanks also to the examiners.
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Planets @ Oxford @oxoplanets.bsky.social · 24/04/2026
Great talk today by Prof Jayne Birkby (@jaynebirkby.bsky.social). She gave an overview of the work conducted within her research group at the termly Department of Physics “State of the Nation”.
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Reposted by Planets @ Oxford
Exeter College, Oxford @exeter.ox.ac.uk · 23/04/2026
📢 Congratulations to Dr Jake Taylor, Supernumerary Fellow at Exeter College, who has been awarded 112.7 hours of observing time on the James Webb Space Telescope to study the emission spectra of nine hot Jupiters. 🔗 Read more: ow.ly/9Ha850YOnBO #ExeterCollegeOxford
Exeter College Supernumerary Fellow, Dr Jake Taylor (Glasstone Fellow in the Department of Physics)
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Planets @ Oxford @oxoplanets.bsky.social · 02/04/2026
Congratulations to second-year DPhil student Mitchell Yzer on his highlight talk at UKExom! He gave an amazing overview of how to detect technosignatures in exoplanet atmospheres using the ELT! Lots more exciting work to come out of his research!
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