Frits Sweijen

Postdoctoral Reasearch Associate and coffee enjoyer at Durham University working on LOFAR VLBI.

[Andrea Botteon @and_botteon]

LoTSS-DR3, by Shimwell+
We have released the largest collection of data from a radio survey: 13M+ sources detected over 19k deg^2 (88% of the N sky). This took ~13k h of @LOFAR observations, ~18 PT of data, and 10+ years of work. Data are public from today
https://t.co/DXLS1dxVXn

[AstronomieNL @AstronomieNL]

Largest Ever Radio Sky Survey Maps the Universe in Unprecedented Detail #lofar

https://t.co/GpLA7yfugF

[Frits Sweijen @fsweij]

https://t.co/xdO937hJt9 quite a nice cheat sheet collection for a variety of stuff.

[Emmy Escott @emmy_escott]

Calling all ECR Radio Astronomers! The deadline for the SKAO Careers Webinar which will be held Monday 10am is Friday 9am! Sign up now using this link:
https://t.co/Ly2Qj1ntOG

[Emmy Escott @emmy_escott]

📣Calling all UK Radio Astronomers 📣Last few days to submit an abstract for our session "Radio Astronomy in the build up to the SKAO"!! Deadline 31st March
https://t.co/AedUNmczvv

[Frits Sweijen @fsweij]

You can find the paper published in The Astrophysical Journal Letters now! https://t.co/N8qRb9cPDN

[Frits Sweijen @fsweij]

Press release time! https://t.co/ROjIbxpaCa It was a pleasure to be co-author on this paper about the z=4.9 quasar J1601+3102 led by my colleague over at @NOIRLabAstro. Combining @LOFAR VLBI with Gemini North spectroscopy, a huge jet 66 kpc jet was revealed in the Early Universe.

[AstronomieNL @AstronomieNL]

Gemini North en LOFAR ontdekken de grootste radio-jet ooit in het vroege heelal.

https://t.co/wD3RNxVhHe

[NAM 2025 Durham @NAM25_Durham]

Registration is OPEN! 🚨

We are pleased to open participant registration for NAM2025 attendance @RoyalAstroSoc✨

#NAM2025 is committed to hosting an accessible and inclusive hybrid conference. @durham_uni looks forward to welcoming you! Register here: https://t.co/k8obvbgCFG

[Andrew McCarthy @AJamesMcCarthy]

I captured the entire "Planetary Parade" using my 11" telescope, and combined everything into one composite photo that stayed true to the angular scale of these objects.

Made entirely with real photos, I hope this composite helps illustrate the scale of these things!

[ESA Science @esascience]

The new Gaia maps are the best reconstructed views of how our Milky Way galaxy might look to an outside observer. They show us our place in the Universe like no other mission has before.

[Andrea Botteon @and_botteon]

On arXiv: the deepest observation ever carried out by @LOFAR, by Shimwell+
We used 505 h of data at 150 MHz on the ELAIS-N1 field and produced a 6" image (rms 10.7 muJy/b) and a catalog of +150k sources (see https://t.co/PSk0D7jYIi). Stay tuned for more...
https://t.co/pUDz2g5L3T

[Frits Sweijen @fsweij]

Really cool seeing some @SKAO SKA Low fringes at #SALFX

[Frits Sweijen @fsweij]

Interesting talk at #SALFX about extracting periodicity from irregularly sampled stellar radio signals

[Emmy Escott @emmy_escott]

Thank you for #SALFX for giving me the opportunity to present my most recent radio morphological results using @LOFAR in Shanghai ✨

[Frits Sweijen @fsweij]

@vijay_mahatma enlightening #SALFX about broadband spectral studies with international @LOFAR

[Frits Sweijen @fsweij]

@hen_edler closing off the first morning session of #SALFX talking about ram pressure stripping as seen by @LOFAR

[Emmy Escott @emmy_escott]

Are you an UK ECR looking towards a career in radio astronomy? Sign up to our Careers Webinar where we will have speakers discussing their careers in radio astronomy! November 11th 10am ✨

[Royal Astronomical Society @RoyalAstroSoc]

🗣️ Exciting announcement! 🗣️

The @RoyalAstroSoc is delighted to confirm that the National Astronomy Meeting 2025 will take place at @durham_uni from 7-11 July 🚀🔭

Organisers have also opened the call for session-proposal submissions – find out more at: https://t.co/Y9p1TUz2ez

[Emmy Escott @emmy_escott]

Attention UK Radio ECRs! There is still time to apply for funding to join us at the UK SKAO Town Hall at Durham University. Application deadline for ECR funding has been extended to 12th September. More information at link below 👇
https://t.co/nJZpSt9gIH