Matthew J West
banner
solarphysicist.bsky.social
Matthew J West
@solarphysicist.bsky.social
180 followers 27 following 23 posts
A solar scientist and the ESA Vigil Mission Scientist, interested in the extended solar atmosphere. I also dabble in a bit of art and outreach
Posts Media Videos Starter Packs
I like making confuse-o-grams that include *all* the details. Help me make this more confusing - what can I add that I'm missing?
🎉Happy Hamilton Day! Sir William Hamilton gave us Hamiltonian mechanics⚙️

His formulation H=T+V underpins orbital dynamics, spacecraft trajectories, and plasma physics

No Hamiltonian Mechanics→No knowledge of L5 Lagrange point→No perfect spot for a space-weather mission-ESA’s Vigil🌞💨🌍
Fantastic few days at the Dublin Institute for Advanced Studies with the brilliant Peter Gallagher — great discussions on #AI and ESA’s #Vigil mission. Exciting times ahead: AI forecasting will be helping us very soon! 🌞🤖
Reposted by Matthew J West
Tagging this so the #heliophysics feed picks it up!
There's more magnetic field in the solar wind than models based on the observed solar surface suggest. This is the so-called "open flux problem". Here's an interesting new solution: helicity condensation - highly twisted magnetic field at the small scale relaxes and affects the large scale field.
Paper day📄Delighted to announce that my paper has officially been published in The Astrophysical Journal this morning! How much contribution can the mechanism of helicity condensation alone contribute toward resolving the Open Flux Problem? ➡️ iopscience.iop.org/article/10.3...
Reposted by Matthew J West
In a recent HAO/NCAR Colloquium, Philip G. Judge explained the context and motivation of his recent study on "Changing Methodologies in Solar Physics". #SolarPhysics 300, 84 (2025). doi.org/10.1007/s112... #OpenAccess youtu.be/YwFgM7XEtJs
Changing methodologies in solar physics 2025 05 21
YouTube video by High Altitude Observatory HAO | NCAR
youtu.be
Another day, another solar and heliophysics first — @ORB_KSB and @esa.int have created a unique eclipse in space! 🌍☀️🌘

The first formation-flying coronagraph: two spacecraft flying 150 m apart, perfectly aligned to block the Sun and reveal its hot corona.

Find out more:
www.esa.int/Enabling_Sup...
Reposted by Matthew J West
Solar astronomer @stephyardley.bsky.social joins BBC Science in Action this week to explain why the new polar views of the Sun, from ESA's Solar Orbiter, will make such a difference in unravelling the Sun's magnetic turmoil and what drives the 11-yr cycle in activity.
www.bbc.co.uk/programmes/w...
BBC World Service - Science In Action, The First Solar Polar Pictures
ESA’s Solar Orbiter camera probe begins raising its orbit towards the sun’s poles.
www.bbc.co.uk
that said.... due to the optically thin nature of the observations at 17.4 nm, these are probably the most unobscured observations of the poles through this passband
Pleased as PUNCH -pardon the pun(CH) to see these amazing images - led by the great @drzowie.bsky.social - the first full sky heliospheric images from PUNCH capturing a couple of eruptions - The next generation of space weather heliospheric instrumentation will be polarized like PUNCH - #trendsetter
Hey! Lookie what PUNCH (@punch-mission.bsky.social) just saw! Two different solar storms crossing the entire inner solar system! NASA's site doesn't thumbnail well, so click the link for the movie and other images. ☀️🔭🛰️🧪

science.nasa.gov/blogs/punch/...
Just to reiterate. This is the FIRST 🥇view of the solar poles. This is astonishing and shows what we, humans, can achieve
Ready to see the Sun like we never have before? 😎

#SolarOrbiter has just released the first views ever of the Sun’s poles!

Thanks to its newly tilted orbit, the mission will uncover details about the Sun’s magnetic field, the solar cycle & space weather 👉 www.esa.int/Science_Expl...

🔭 🧪 ☄️ ☀️ 1/
Oh awesome thanks for the contact!
Looks great, I would love to discuss how this might be adopted for #Vigil with you!
Reposted by Matthew J West
This is a new tool to look at @science.esa.int #SolarOrbiter imaging data (or data from other missions) and the field of views of different instruments.
hpa.esa.int/hpa/#/home
Looking at X-ray Flux Monitors today—instruments that detect solar X-ray bursts. They're used in #SpaceWeather☀️☔ studies, helping understand solar☀️flares that can disrupt comms📡, satellites & aviation✈️. Attached an X-ray light curve from 2014 showing confined flares- with no associated eruptions
Reposted by Matthew J West
The National Solar Observatory's 4-meter Inouye Solar Telescope, funded by NSF, just discovered something new on the Sun: magnetic striations only a few tens of kilometers across, which affect the Texas-sized granules that carry solar energy to the surface (to become sunlight)! ☀️🧪🔭⚛️
Magnetic Curtains on the Sun: NSF Inouye Solar Telescope Reveals Ultra-Fine Striations in Solar Surface - NSO - National Solar Observatory
In a groundbreaking new study, a team led by scientists from the U.S. National Science Foundation (NSF) National Solar Observatory (NSO) has captured the sharpest-ever view of the Sun’s surface, revea...
nso.edu
The Sun 🌞 — our source of space weather ☔ — needs constant watching. Who knows what it’ll throw at us next? @ESA #Vigil ☀️👁️‍🗨️🌍.
imgs.xkcd.com/comics/check...
Wrapping up another fascinating @ESA #Vigil👁️‍🗨 instrument day — at Leonardo S.p.A. Florence Italy — focused on the Vigil Heliospheric Imager. HI will be instrumental (pun intended) in tracking Coronal Mass Ejections💨 & space weather☔ from Sun🌞 to Earth🌍. Heres a representative STEREO HI image Jun 2011
Reposted by Matthew J West
Great connection here! Indeed there is an aurora producing storm happening www.swpc.noaa.gov, though will likely have passed by this evening US time.
Reposted by Matthew J West
Such lovely detail! Zoom in and discover the varied features of the Sun’s atmosphere.
☀️🛰️New mosaic image of Solar Orbiter! 🤩
In March 2025, @orb-ksb.bsky.social combined 200 high-res images of the Sun into a stunning mosaic. Each of those images is taken by our EUI telescope onboard Solar Orbiter when it was 77 million km from the Sun. 🔭🧪 www.esa.int/ESA_Multimed... @science.esa.int
Solar Orbiter’s widest high-res view of the Sun
Solar Orbiter’s widest high-resolution view of the Sun
www.esa.int
Reposted by Matthew J West
🛰️ 🛰️ ☀️ #Proba3 is now officially the world’s first precision formation flying mission! The mission team has achieved the desired precision – with the two spacecraft maintaining their relative position down to less than a millimetre while flying 150 metres apart! www.esa.int/Enabling_Sup...
Just wrapped up a fascinating day at the Max Planck Institute for Solar System Research in Göttingen, discussing the Photospheric Magnetic Imager for the @esa #Vigil mission — including a tour of the facilities where both it will be and the Solar Orbiter PHI instrument were developed.
Professor Jonathan Eastwood, lead for the @esa #Vigil MAG instrument, delivers his @ImperialCollegeLDN Inaugural Lecture:
🎓 Watch here: www.youtube.com/watch?v=jw6X...
The relentless sun: how do we live with severe space weather?
YouTube video by Imperial College London
www.youtube.com
Reposted by Matthew J West
It's a good day to pitch our ongoing #PUNCH open-access article collection in the journal #SolarPhysics:
"The Polarimeter to Unify the Corona and Heliosphere (PUNCH) Mission: An Overview"
link.springer.com/collections/...