Freek Roelofs

Black hole astrophysicist and blues guitarist | @CenterForAstro, @ehtelescope | 🇳🇱 🇺🇸 🏳️‍🌈

[Event Horizon 'Scope @ehtelescope]

Breaking news: the Event Horizon Telescope team unveils strong magnetic fields spiraling at the edge of Milky Way’s central black hole, Sagittarius A*. This new image suggests that strong magnetic fields may be common to all black holes.

#OurBlackHole #SgrABlackHole

[Freek Roelofs @froeloefs]

Press release about our discovery of circular polarization at the event horizon of the supermassive black hole in M87!
https://t.co/B1BiKIPwzZ

[Kazu Akiyama @sparse_k]

Many @ehtelescope postdocs and junior staffs shared the exciting frontier of EHT science and technology! In our session, Lindy Blackburn and Iniyan Natarajan from @saoastro gave fantastic talks on EHT data processing and new software in @JuliaLanguage. #URSIGASS2023

[Kazu Akiyama @sparse_k]

In the VLBI session, @ehtelescope highjacked an hour of the block! Kotaro Moriyama gave an excellent overview of EHT results, @froeloefs shared the latest EHT results studying magnetism at the edge of the event horizon of #M87BlackHole with circular polarization. #URSIGASS2023

[Dr. Sara Issaoun @SaraIssaoun]

So happy this paper is finally out! @Noemi_La_Bella did a great job investigating the impact of the AMT when we observe Sagittarius A* with the EHT. It turns out it helps a lot when observing with our European partners and ALMA

[Heino Falcke @hfalcke]

Partial group reunion @Radboud_Uni of former PhD students with the legendary Einstein fellow @SaraIssaoun as colloquium speaker in the center, dr binary black hole shadow ballet @jordydavelaar, blueshifted simulator @froeloefs, space faring lunatic @CDBrinkerink and a crazy prof.

[Dr. Sara Issaoun @SaraIssaoun]

The 2022 @harvardbhi conference ended and our first instinct was to go get Union Square donuts 😎🍩
#EventHorizonTelescope

[Freek Roelofs @froeloefs]

@jordydavelaar @maciekwielgus3 Yes, observing the correct lunar phase was crucial

[Freek Roelofs @froeloefs]

From imaging a black hole shadow to imaging Earth's shadow #LunarEclipse

[Freek Roelofs @froeloefs]

@maciekwielgus3 Since when am I a theorist? ;)

[Event Horizon 'Scope @ehtelescope]

We finally have the first look at our Milky Way black hole, Sagittarius A*. It’s the dawn of a new era of black hole physics. Credit: EHT Collaboration. #OurBlackHole #SgrABlackHole
Link: https://t.co/Ax7ECRVg8A

[Event Horizon 'Scope @ehtelescope]

We, at the Event Horizon Telescope, will be revealing groundbreaking Milky Way results on May 12, across multiple press conferences worldwide including at the @NSF and @ESO

Read more here: https://t.co/1pOwZ3wNKE

[Event Horizon 'Scope @ehtelescope]

Tonight we will start the EHT 2022 observing campaign, targeting our favorite black holes with 11 stations around the world! 📡🌍📡
Image compilation by Thalia Traianou. #EHT2022

[Event Horizon 'Scope @ehtelescope]

The NSBP/SAO EHT Scholars Program is seeking undergrad/grad student applications for its 2022 cohort! The application deadline is April 1st, for an internship on black hole research starting in June 2022. Come join us!
@NSBPInc @saoastro @CenterForAstro

[Shep Doeleman @ShepDoeleman]

Looking for talented researchers for a postdoctoral fellowship in the Event Horizon Telescope (EHT) and next-generation EHT (ngEHT) projects. Software inclined astrophysicists encouraged to apply! https://t.co/DnDyiEYcxx

[Freek Roelofs @froeloefs]

@SaraIssaoun @hfalcke Congratulations Dr. Sara! Very proud and glad to have been part of your extraordinary journey. We'll celebrate together in person soon!

[Sera Markoff (@profsera.bsky.social) @ProfSeraMarkoff]

Exciting times, our new NatAstro paper is out of embargo revealing the first @ehtelescope view of the nearest radio galaxy Centaurus A! We see 'hollow' looking jets launched by a #BlackHole! Led by then PhD student Michael Janssen, it's both impressive and super weird. [1/5]

[BlackHoleCam @BlackHoleCam]

Don't miss out this fantastic documentary by Peter Galison. It explores the struggles of the @ehtelescope to capture the iconic first image of a black hole. You'll get a behind-the-scenes look at our collaboration & meet many of us👇
https://t.co/Qbe73iXHee

[Heino Falcke @hfalcke]

Two technical papers describing our Event Horizon Imager #EHI concept to image black holes from space (and how to fit a telescope larger than Earth into one Ariane 6 rocket @esa @Arianespace @AirbusSpace).

https://t.co/y9wTEc29yX

https://t.co/doixqt278F

[Freek Roelofs @froeloefs]

@AmandaMKramer @zackwiener @minutephysics I can play and write music but have very little poetic or singing talent, so I'll ask the singer of Blueshift ;) I agree we need a song about jets though, I don't think we have one yet!