Faculty

Institution

Unit

Venue

Johnny Powell

Professor

Reed College

Affiliations

Mathematical and Natural Sciences

Physics

Johnny Powell is currently serving as a Mathematical And Natural Sciences Professor at Reed College.

Honors

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Experiences

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Education

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Johnny Powell

Reed College

Professor

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astronomy extragalactic astronomy galaxy formation and evolution computational astrophysics physics astrophysical simulations galaxy formation cosmology high energy density physics large scale structure space weather acta astronautica planetary change observational cosmology numerical simulations planetary sciences star formation high energy physics modern physics synchrotron radiation agora collaboration gravitational lens gravity computational physics theoretical physics cosmic abundance astroinformatics new code groups massive stars star formation thresholds circumgalactic medium hydro codes galaxy mass assembly milky way-mass halo quenched fractions disk formation cosmorun data release cosmological zoom-in simulation satellite galaxy populations high-redshift frontier earth system science scientific computing active galactic nucleus galaxy clusters galactic center nuclear astrophysics interstellar medium experimental physics mathematics space exploration exoplanets physic education atomic spectroscopy radio astronomy cosmic rays observational astronomy astrobiology scientific data stellar evolution science advance aerospace engineering atmospheric research nuclear fusion atmospheric measurement technique planetary systems astroparticle physics astrophysics stellar astrophysics

Notable Scholarly Works

Notable Federal Grants

Collaborators

The Agora High-Resolution Galaxy Simulations Comparison Project. X. Formation and Evolution of Galaxies at the High-Redshift Frontier. The Astrophysical Journal (2026)

physicshigh-redshift frontiercomputational astrophysicsextragalactic astronomyastrophysical simulationshigh energy density physicsastronomysynchrotron radiationgalaxy formationobservational cosmologylarge scale structuregalaxy formation and evolution

The Agora High-Resolution Galaxy Simulations Comparison Project. XI: Solving the Non-Spherical Morphology and Evolution of Dark Matter Halos With Haskap Pie. arXiv (Cornell University) (2026)

physicsmodern physicsplanetary sciencescomputational astrophysicsextragalactic astronomygalactic centerhigh energy physicsacta astronauticahigh energy density physicsspace weathercosmologyplanetary changeastronomysynchrotron radiationgalaxy clustersdark mattergalaxy formation and evolution

The Agora High-Resolution Galaxy Simulations Comparison Project. VIII. Disk Formation and Evolution of Simulated Milky Way Mass Galaxy Progenitors at 1 Z 5. The Astrophysical Journal (2025)

physicscomputational astrophysicsextragalactic astronomyastrophysical simulationsdisk formationhigh energy density physicsplanetary changeastronomygalaxy formationgalaxy formation and evolution

The Agora High-Resolution Galaxy Simulations Comparison Project. Astronomy and Astrophysics (2025)

R. Rodríguez-CardosoS. Roca-FàbregaMinyong JungThinh Hu NguyenJi-hoon KimJoel PrimackOscar AgertzKirk S. BarrowJesus GallegoKentaro NagamineJohnny W. PowellYves RevazHector VelázquezAnna GeninaHyeonyong KimAlessandro LupiTom AbelRenyue CenDaniel CeverinoAvishai DekelBoon Kiat OhThomas R. Quinn

physicscomputational astrophysicsextragalactic astronomyhigh energy physicsastrophysical simulationsmilky way-mass halohigh energy density physicsquenched fractionsastronomygalaxy formationlarge scale structurestar formationgalaxy formation and evolution

The Agora High-Resolution Galaxy Simulations Comparison Project: Cosmorun Data Release. arXiv (Cornell University) (2024)

Roca-Fàbrega, SantiKim, Ji-hoonPrimack, Joel R.Genina, AnnaJung, MinyongLupi, AlessandroNagamine, KentaroPowell, Johnny W.Quinn, Thomas R.Revaz, YvesShimizu, IkkohVelázquez, HéctorCollaboration, the AGORA

computational astrophysicsextragalactic astronomyastrophysical simulationscosmologyastronomynumerical simulationscosmorun data releaseastroinformaticsgalaxy formation and evolution

The Agora High-Resolution Galaxy Simulations Comparison Project. IV. Halo and Galaxy Mass Assembly in a Cosmological Zoom-in Simulation at Z ≤ 2. The Astrophysical Journal (2024)

Roca-Fàbrega, SantiKim, Ji-hoonPrimack, Joel R.Jung, MinyongGenina, AnnaHausammann, LoicKim, HyeonyongLupi, AlessandroNagamine, KentaroPowell, Johnny W.Revaz, YvesShimizu, IkkohStrawn, ClaytonVelázquez, HéctorAbel, TomCeverino, DanielDong, BiliQuinn, Thomas R.Shin, Eun-jinSegovia-Otero, AlvaroAgertz, OscarBarrow, Kirk S.Cadiou, CorentinDekel, AvishaiHummels, CameronOh, Boon KiatTeyssier, Romain

physicsgalaxy mass assemblyhydro codescomputational astrophysicsextragalactic astronomyastrophysical simulationshigh energy density physicsplanetary changeastronomygalaxy formationlarge scale structureagora collaborationgalaxy formation and evolution

The Agora High-Resolution Galaxy Simulations Comparison Project. VI. Similarities and Differences in the Circumgalactic Medium. The Astrophysical Journal (2024)

Clayton StrawnSanti Roca-FàbregaJoel R. PrimackJi-hoon KimAnna GeninaLoic HausammannHyeonyong KimAlessandro LupiKentaro NagamineJohnny W. PowellYves RevazIkkoh ShimizuHéctor VelázquezTom AbelDaniel CeverinoBili DongMinyong JungThomas R. QuinnEun-jin ShinKirk S. S. BarrowAvishai DekelBoon Kiat OhNir MandelkerRomain TeyssierCameron HummelsSoumily MajiAntonio ManPaul Mayerhofer

physicsagora collaborationacta astronauticacomputational astrophysicsextragalactic astronomyastrophysical simulationsstar formation thresholdscosmologyastronomygalaxy formationnumerical simulationscosmic abundanceobservational cosmologylarge scale structurecircumgalactic mediumspace weathergalaxy formation and evolution

The Agora High-Resolution Galaxy Simulations Comparison Project. V. Satellite Galaxy Populations in a Cosmological Zoom-in Simulation of a Milky Way-Mass Halo. Repository for Publications and Research Data (ETH Zurich) (2024)

Minyong JungSanti Roca-FàbregaJi-hoon KimAnna GeninaLoic HausammannHyeonyong KimAlessandro LupiKentaro NagamineJohnny W. PowellYves RevazIkkoh ShimizuHéctor VelázquezDaniel CeverinoJoel R. PrimackThomas R. QuinnClayton StrawnTom AbelAvishai DekelBili DongBoon Kiat OhRomain Teyssier

satellite galaxy populationsextragalactic astronomycosmological zoom-in simulationastronomygalaxy formation and evolution

Simulating Gravitational Motion, Gas Dynamics, and Structure in the Cosmos. American Journal of Physics (2023)

physicstheoretical physicsmodern physicsastrophysicsacta astronauticacomputational astrophysicsplanetary sciencesgravityspace weatherintroduction to general relativityplanetary systemscosmologyplanetary changegravitational lensastronomynumerical simulationscomputational physics

The Agora High-Resolution Galaxy Simulations Comparison Project. III. Cosmological Zoom-in Simulation of a Milky Way–Mass Halo. The Astrophysical Journal (2021)

Santi Roca-FàbregaJi-hoon KimLoic HausammannKentaro NagamineAlessandro LupiJohnny W. PowellIkkoh ShimizuDaniel CeverinoJoel R. PrimackThomas R. QuinnYves RevazHéctor VelázquezTom AbelMichael BuehlmannAvishai DekelBili DongOliver HahnCameron HummelsKi-won KimBritton D. SmithClayton StrawnRomain TeyssierMatthew J. Turk

physicsacta astronauticacomputational astrophysicsextragalactic astronomyastrophysical simulationscosmologymassive starsastronomygalaxy formationnew code groupsobservational cosmologylarge scale structurestar formationspace weathergalaxy formation and evolution

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Johnny Powell

Professor

Reed College

Affiliations

Mathematical and Natural Sciences

Physics

Johnny Powell is currently serving as a Mathematical And Natural Sciences Professor at Reed College.

Honors

Create free account to unlock more features

Experiences

Create free account to unlock more features

Education

Create free account to unlock more features

Johnny Powell

Reed College

Professor

You can click a keyword to filter the displayed items

Notable Scholarly Works

Notable Federal Grants

Collaborators

The Agora High-Resolution Galaxy Simulations Comparison Project. X. Formation and Evolution of Galaxies at the High-Redshift Frontier. The Astrophysical Journal (2026)

The Agora High-Resolution Galaxy Simulations Comparison Project. XI: Solving the Non-Spherical Morphology and Evolution of Dark Matter Halos With Haskap Pie. arXiv (Cornell University) (2026)

The Agora High-Resolution Galaxy Simulations Comparison Project. VIII. Disk Formation and Evolution of Simulated Milky Way Mass Galaxy Progenitors at 1 Z 5. The Astrophysical Journal (2025)

physicscomputational astrophysicsextragalactic astronomyastrophysical simulationsdisk formationhigh energy density physicsplanetary changeastronomygalaxy formationgalaxy formation and evolution

The Agora High-Resolution Galaxy Simulations Comparison Project. Astronomy and Astrophysics (2025)

The Agora High-Resolution Galaxy Simulations Comparison Project: Cosmorun Data Release. arXiv (Cornell University) (2024)

computational astrophysicsextragalactic astronomyastrophysical simulationscosmologyastronomynumerical simulationscosmorun data releaseastroinformaticsgalaxy formation and evolution

The Agora High-Resolution Galaxy Simulations Comparison Project. IV. Halo and Galaxy Mass Assembly in a Cosmological Zoom-in Simulation at Z ≤ 2. The Astrophysical Journal (2024)

The Agora High-Resolution Galaxy Simulations Comparison Project. VI. Similarities and Differences in the Circumgalactic Medium. The Astrophysical Journal (2024)

satellite galaxy populationsextragalactic astronomycosmological zoom-in simulationastronomygalaxy formation and evolution

Simulating Gravitational Motion, Gas Dynamics, and Structure in the Cosmos. American Journal of Physics (2023)

The Agora High-Resolution Galaxy Simulations Comparison Project. III. Cosmological Zoom-in Simulation of a Milky Way–Mass Halo. The Astrophysical Journal (2021)

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