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Ryan Milligan

@ryanomilligan

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Latest posts by Ryan Milligan @ryanomilligan

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Having a very stimulating and productive meeting on The Impact of Solar Flare Irradiance on the Earth's Ionosphere at the International Space Science Institute (@issibern.ch) in Bern, Switzerland with these fine people!

05.02.2026 14:12 👍 4 🔁 0 💬 0 📌 0
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Ever wondered what powers a solar flare? 💥

Solar Orbiter is finally giving us answers to this long-standing mystery.

The mission caught a 'magnetic avalanche' on the surface of the Sun just before a flare was released.

🔭🧪1/3

21.01.2026 08:16 👍 288 🔁 74 💬 2 📌 14
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PhD position available at QUB/ARC on investigating how solar flares with different spectral profiles impact the Earth’s ionosphere. More details here: www.qub.ac.uk/courses/post... Information session at noon on 8th December. Fill out this form to attend forms.office.com/e/DSk4A9K3dB

03.12.2025 11:34 👍 5 🔁 2 💬 0 📌 0

Check out this Review of the past 30 yrs of SOHO! Published today in Nature Astronomy: rdcu.be/eSLUR
#astronomy

02.12.2025 13:00 👍 15 🔁 2 💬 0 📌 0
cover of the book version reprinting the journal collection

cover of the book version reprinting the journal collection

#ThrowBackThursday Special Issue "Solar and Stellar Flares: Observations, Simulations, and Synergies" / Edited by Lyndsay Fletcher and Petr Heinzel: link.springer.com/journal/1120...
Published 2015 in #SolarPhysics, with highly-cited contributions to a conference in honor of Zdeněk Švestka.

27.11.2025 10:00 👍 7 🔁 2 💬 0 📌 0

Nice to see a paper led by one of my PhD students getting the Editor's Choice in Solar Physics! We looked at Doppler shifts in Si III during solar flares using SORCE/SOLSTICE data. There also appears to be a longitudinal dependence on velocity, which may or may not be instrumental...

26.09.2025 12:16 👍 3 🔁 0 💬 0 📌 0
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Mestrado / Doutorado

MSc & PhD positions in #heliophysics and #exoplanets at Mackenzie University, Brazil. Applications deadline May 13. Scholarships available - please get in touch (DM me!) for more info about this and projects!

We can also talk about posdoc positions

#AcademicSky

www.mackenzie.br/processos-se...

02.05.2025 16:00 👍 11 🔁 7 💬 1 📌 0

Links to Aisling's paper (agupubs.onlinelibrary.wiley.com/doi/10.1029/...) and press release (www.qub.ac.uk/News/Allnews...) now available.

29.04.2025 05:49 👍 2 🔁 0 💬 0 📌 0

Cheers dude! We’re working on that along with a press release.Will post the links once they’re done. I can send you a preprint though.

09.04.2025 15:39 👍 1 🔁 0 💬 1 📌 0
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My PhD student Aisling O'Hare has published her first paper studying the impact of QPPs in solar flare emission on Earth's atmosphere. The ionosphere is much more sensitive to small changes in EUV irradiance than previously believed as measured by changes in total electron content. 👏

09.04.2025 12:58 👍 10 🔁 2 💬 2 📌 0
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This Saturday, between 10am and noon, a partial solar eclipse will be visible from much of the UK and Ireland (weather permitting). QUB/ARC are hosting an event at the Ulster Museum where we will have eclipse glasses and solar telescopes. Come along! www.ulstermuseum.org/whats-on/cha...

24.03.2025 10:11 👍 3 🔁 0 💬 0 📌 0
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Having a great week at @issibern.ch with these amazing scientists discussing The Impact of Solar Flare Irradiance on the Earth's Ionosphere

22.01.2025 14:11 👍 8 🔁 1 💬 0 📌 0

Aww thank you Alec! ☺️

11.01.2025 08:03 👍 1 🔁 0 💬 0 📌 0

I am very honoured to have been awarded the James Dungey Lectureship by the Royal Astronomical Society.

11.01.2025 07:59 👍 4 🔁 0 💬 2 📌 0

Great video Chris! And thanks to @pjasimoes.bsky.social for sharing! My research group at QUB are studying the impacts of solar flares on the #ionosphere and we have two papers in review that show that the ionosphere may be much more sensitive to rapid changes in solar EUV emission than we thought.

13.12.2024 11:38 👍 1 🔁 0 💬 1 📌 0
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Our paper on the instrumental discrepancies on solar flare observations in Lyman-alpha emission, led by Harry Greatorex, has now been published in Solar Physics: link.springer.com/article/10.1...

29.11.2024 14:43 👍 5 🔁 1 💬 0 📌 0