Canadian Institute for Theoretical Astrophysics
@CITA_ICAT
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CITA is a nationally supported research center for studies in theoretical astrophysics at @UofT
Canada
Joined February 2016
Congratulations to @CITA_ICAT Fellow Dr. James Beattie (@astro_magnetism), @UofT, on leading the creation of the largest/highest resolution simulation of magnetized turbulence, recognized with the @HPCwire Editor's Choice Award for "Top HPC-Enabled Scientific Achievement"!
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Prof. Bill Harris (@McMasterU) and @CITA_ICAT Fellow Marta Reina-Campos (@UofT) chat about their article on ultracompact dwarf galaxies and luminous globular clusters on the AAS Journal Author Series. Listen in: https://t.co/fDyqFMmjtW
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We’re excited to welcome Rohan Dahale as a Cohort 3 #SchmidtAIinSci Fellow! Rohan works with Profs. Bart Ripperda (CITA) and Aviad Levis (Computer Science). His project bridges black hole simulations and observations with machine learning.🛰️
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We warmly welcome renowned #exoplanet researcher @ProfSaraSeager to @CITA_ICAT. #astrophysics
https://t.co/uuaM2wMxuJ
cbc.ca
Canadian astronomical research is getting a big boost with the return of Sara Seager to Canada after around 20 years at MIT. Her research includes looking for life in the clouds of Venus and search...
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Renowned planetary scientist @ProfSaraSeager joins @UofT and the @CITA_ICAT as North Star Distinguished Professor starting September 1, 2026. Learn more: https://t.co/URcx0h7Ybr
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The similarity of these observations to @CITA_ICAT, @UofT Fellow Claire Ye’s predictions is highlighted by the size differential between the black holes in each merger and the spin orientations of the larger of the black holes in each event. https://t.co/wNksQdsXEG
cita.utoronto.ca
In a new paper published Oct. 28 in The Astrophysical Journal Letters, the international LIGO-Virgo-KAGRA (LVK) Collaboration reports on the detection of two gravitational wave events in…
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A paper by CITA Fellow Sean Ressler at @UofT published in ApJ Letters presents the first ever simulations of #OJ287. His co-authors are Luciano Combi, CITA National fellow at @Perimeter, @BartRipperda, CITA faculty, and Xinyu Li, @Tsinghua_Uni.
cita.utoronto.ca
CITA researchers have the calculations and simulations to explain mysterious flashes from the galaxy OJ 287 Roughly twice every 12 years, from 3.5 billion light years away,…
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On Oct. 21 the @ShawPrize presented its awards to the four 2025 Shaw Laureates with a special ceremony in the Grand Hall of the Hong Kong Convention and Exhibition Centre. Professor George Efstathiou and @CITA_ICAT Professor John Richard Bond shared the Shaw Prize in Astrophysics
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@CITA_ICAT faculty member @mayaKfish commented for @SkyandTelescope on the proposed budget cuts for @LIGO: "Closing one facility would be a senseless, irrational thing to do". “It’s like trying to fly a plane with only one wing.” https://t.co/gjMHIWW4Zf
skyandtelescope.org
One of two Nobel Prize-winning Laser Interferometer Gravitational-wave Observatory (LIGO) sites is on the budgetary chopping block.
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The energy is palpable on Day 2 of our workshop, 'Unstable and Time-Variable Accretion Flows' at @CITA_ICAT, @UofT! 🌟 Researchers from around the globe are fuelling a whirlwind of heated discussions. So much incredible science happening! #Astrophysics #AccretionFlows #UofT
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The WORKSHOP on 'Unstable and Time-Variable Accretion Flows from Core to Disk to Star' is starting tomorrow, October 15 at @CITA_ICAT's IdeaLab: https://t.co/3YIagQyoYw
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'Can LIGO Detect Daylight Savings Time?' asks a new paper by CITA faculty Reed Essick. https://t.co/zdBleVmcy9
phys.org
Interference from human activity has always been a sticking point in astronomical observations. Radio astronomy is notoriously sensitive to unintentional interference—hence why there are "radio...
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#UofTArtSci alumni Adiv Paradise and Emily Tyhurst used their U of T degrees in astronomy and astrophysics to help cities worldwide save millions of litres of water. Learn how: https://t.co/mVNFjNzQRu
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Honouring the legacy of the Martin Family and proud to have one of them among us. Professor Peter Martin, son of Mary and Ron Martin, is a founding faculty member of @CITA_ICAT. This year's Martin Lecture by Geoffrey Hinton is available here:
For six years, the Mary Louise & Ronald Laidlaw Martin Graduate Scholarships have been changing the lives of deserving @UofTArtSci graduate students. Read about Mary and Ron Martin's legacy of supporting education: https://t.co/ND6N7SFfBW
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New observations of supermassive black hole reveal magnetic field reversals, signs of jet activity #UofT 🔭 https://t.co/r6jujQJkHQ
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New EHT Images Reveal Unexpected Polarization Flips at M87* @CITA_ICAT Fellow Dr. Sebastiano von Fellenberg is a key contributor to the latest @ehtelescope publication. He lead the calibration of the new 2021 observations. https://t.co/JxYSj2BbXG
eventhorizontelescope.org
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@CITA_ICAT's Gravitational Wave Group (with Reed Essick (@thisaintessic), Maya Fishbach (@mayaKfish), Aditya Vijaykumar, Aryanna Schiebelbein-Zwack, Utkarsh Mali, Amanda Farah and Tom Wu) spearheads astrophysical interpretation of @LIGO-VIRGO-@KAGRA_PR observational run #GWTC-4.0
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🚀 New AAS Journal Author Series Video! Daniel Tamayo (Harvey Mudd College) & Samuel Hadden (@CITA_ICAT) dive into their research on mean motion resonances & discuss what’s next now that their article is published. #ExploreAstronomy #TheGoodStuff 📺Watch: https://t.co/WfqTcsGeOB
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