Dimitrios PSALTIS

New paper on ML black hole image reconstruction with @feryal_ozel, @TodLauer, and Lia Medeiros showing that, in many cases, interpretable AI is within reach. #MachineLearning #Blackholes arxiv.org/abs/2408.10322

When you devise a new ML algorithm, it is important to understand why it works and why it does not hallucinate.

Remarkable new paper by my postdoc Matt Golden, with a novel algorithm for model discovery in physics. Training that would have taken the age of the universe to complete with prior algorithms can now be achieved in a day. #machinelearning #physics arxiv.org/abs/2405.09579

Remember that historic first image of a black hole, called M87*? Well, it just got a makeover with the help of AI. Check out its sharp new look! bit.ly/3zWmtp8 #NSFfunded @ehtelescope @GeorgiaTech @the_IAS @NOIRLabAstro 📷: Medeiros et al. 2023

Meet the new and improved image of the M87 black hole! My former student @astronolia, colleagues @DimitriosPSALT1 @TodLauer and I spent several years developing ML techniques to fill in the missing information smarter and obtain a sharper image. nytimes.com/2023/04/13/sci…

#YearInReview: Here are some of our most popular Twitter stories of 2022! (In no particular order) First up: NSF-supported @ehtelescope revealed the FIRST image of the supermassive black hole at the center of our Milky Way galaxy: bit.ly/3C4wn9u #ourblackhole #bye2022

A little advert for PRIMO arxiv.org/abs/2208.01667 a new algorithm for the reconstruction of images of BHs from EHT interferometric observations. The image shows simulated results. UL is a high fidelity GR+MHD simulation at 1.3mm of an accreting BH of the mass and distance of M87.

Starting a new 🧵to answer your burning questions about the image of Sagittarius A* here! I’ll keep on adding more FAQs so feel free to post additional questions below.

Why the real pictures of black holes do not look similar to the ones in movies like Interstellar youtube.com/watch?v=StdoDa…

Y’all.. if you haven’t yet, take one minute to travel from the Earth to the Center of our Galaxy with this amazing video. Produced by John Dickie, original music by my ultra talented friend ⁦@parityflux⁩ John Krikawa, narrated by Carolyn Raithel. youtu.be/ILGJWN12S3o

Let’s be honest… it was always about the donuts… with @nsf director Dr. Sethuraman Panchanathan

I’m so grateful to share this moment with my partner in crime.

A wonderful moment when we shared the image with the world.

Enjoy this beautiful experience, a journey to the black hole in the center of our galaxy. youtu.be/ILGJWN12S3o @uarizona @BHPIRE #OurBlackHole

While we did most of our work remotely, nothing replaces a f2f interaction to work out the most challenging details. North American #EHTmeeting @uarizona Image credits: CK Chan

Meet the team! youtu.be/BuOGJRnIoJ8 @ehtelescope

The wait is over. Meet the black hole at the center of our galaxy. #OurBlackHole

The beautiful poster from @nsf for Thursday’s press conference. Also live feed for those who won’t be able to attend!

On our way to DC for the press conference on Thursday. Counting down! ⁦@NSF⁩ ⁦@ehtelescope⁩ ⁦@BHPIRE⁩

@ehtelescope Well... here are 2PB of data taken at Kitt Peak and SMT @ARoshanineshat @weblogarithms @SaraIssaoun