The Center for Computational Astrophysics executes research programs on systems ranging in scales from planets to cosmology, creating and using computational tools for data analysis and theory. It also supports, trains, and equips diverse members of the global astrophysics community and convenes events and workshops in New York City.
Featured News
The international team behind the Event Horizon Telescope, including the Flatiron Institute’s Jordy Davelaar, created a never before seen picture of the supermassive black hole at the center of our galaxy.
Our Mission:
▪ Solve important, hard problems in computational astrophysics. Focus on problems that we at Flatiron are uniquely positioned to solve. ▪ Invent and propagate better data-analysis practices, analytical methods and computational methods for the global astrophysics community, with a focus on rigor. ▪ Develop, maintain and contribute to open-source software packages, open data and their communities. ▪ Create and support a community of astrophysics doers, learners and mentors in New York City and beyond. ▪ Train and launch diverse early-career researchers in astrophysics with unique capabilities in computational methods.
Groups
Collaborative Work
This collaboration, directed by Greg Bryan of Columbia University, aims to understand and determine the evolution and initial conditions of our universe, using observations via a Bayesian forward modeling approach.
- CCA
- | Columbia University
- | Lawrence Berkeley National Lab
- | Harvard University
- | Stockholm University
- | Institute D'Astrophysique de Paris
- | Université de Montreal
- | Princeton University
- | Carnegie Mellon University
- | Max-Planck Institute for Astrophysics
Projects
Major research efforts currently supported by
CCA in partnership with other institutions.
Upcoming Events
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29 Fri -
Colloquium 3:00 - 4:00 p.m.
CCA Colloquium
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Colloquium 3:00 - 4:00 p.m.
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01 Mon -
Colloquium 3:00 - 4:00 p.m.
CCA Colloquium Schedule
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Colloquium 3:00 - 4:00 p.m.
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05 Fri -
Colloquium 3:00 - 4:00 p.m.
CCA Colloquium: Zhaohuan Zhu
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Colloquium 3:00 - 4:00 p.m.
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12 Fri -
Colloquium 3:00 - 4:00 p.m.
CCA Colloquium: Meridith Joyce
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Colloquium 3:00 - 4:00 p.m.
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24 Wed -
Meeting 9:00 a.m. - 5:00 p.m.
Ramses User Meeting 2024
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Meeting 9:00 a.m. - 5:00 p.m.
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26 Fri -
Colloquium 3:00 - 4:00 p.m.
CCA Colloquium
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Colloquium 3:00 - 4:00 p.m.
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01 Wed -
Colloquium 3:00 - 4:00 p.m.
CCA Colloquium Schedule
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Colloquium 3:00 - 4:00 p.m.
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03 Fri -
Colloquium 3:00 - 4:00 p.m.
CCA Colloquium: Vicky Kalogera
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Colloquium 3:00 - 4:00 p.m.
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10 Fri -
Colloquium 3:00 - 4:00 p.m.
CCA Colloquium: Cora Dvorkin
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Colloquium 3:00 - 4:00 p.m.
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17 Fri -
Colloquium 3:00 - 4:00 p.m.
CCA Colloquium: Nick Scoville
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Colloquium 3:00 - 4:00 p.m.
Event Videos
View all videos →
Plenary Discussion
March 13, 2024
Stable Mass Transfer in Binaries: from onset to remnants
Monica Gallegos-Garcia: Stable Mass Transfer as a Formation Channel for Gravitational-Wave Sources
March 13, 2024
Stable Mass Transfer in Binaries: from onset to remnants
Simon J. Murphy & Amadeusz Miszuda: Asteroseismic Signatures of Mass Transfer and The Products of Mass Transfer
March 13, 2024
Stable Mass Transfer in Binaries: from onset to remnants
Amedeo Romagnolo: Black Hole Binaries: Which Ones May Come from Stable Mass Transfer Events?
March 13, 2024
Stable Mass Transfer in Binaries: from onset to remnants
Research Highlights
A unified model for the co-evolution of galaxies and their circumgalactic medium: the relative roles of turbulence and atomic cooling physics
The circumgalactic medium (CGM) plays a pivotal role in regulating gas flows around galaxies and thus shapes their evolution. However,…
arXiv:2211.09755Backward Population Synthesis: Mapping the Evolutionary History of Gravitational-wave Progenitors
One promising way to extract information about stellar astrophysics from a gravitational-wave catalog is to compare the catalog to the…
APJCode Comparison in Galaxy-scale Simulations with Resolved Supernova Feedback: Lagrangian versus Eulerian Methods
We present a suite of high-resolution simulations of an isolated dwarf galaxy using four different hydrodynamical codes: {\sc Gizmo}, {\sc…
APJDirector
Software
Gala
Galactic Dynamics is the study of the formation, history, and evolution of galaxies using the orbits of objects — numerically-integrated trajectories of stars, dark matter particles, star clusters, or galaxies themselves.
STARRY
starry enables the computation of fast and precise light curves for various applications in astronomy: transits and secondary eclipses of exoplanets, light curves of eclipsing binaries, rotational phase curves of exoplanets, light curves of planet-planet and planet-moon occultations, and more.
George
George is a fast and flexible Python library for Gaussian Process Regression. It capitalizes on the Hierarchical Off-Diagonal Low-Rank formalism to make controlled approximations for fast execution.
celerite
celerite is a library for fast and scalable Gaussian Process (GP) Regression in one dimension with implementations in C++, Python, and Julia.
Astrometry.net
If you have astronomical imaging of the sky with celestial coordinates you do not know—or do not trust—then Astrometry.net is for you. Input an image and we'll give you back astrometric calibration meta-data, plus lists of known objects falling inside the field of view.
DAFT
Daft is a Python package that uses matplotlib to render pixel-perfect probabilistic graphical models for publication in a journal or on the internet.
emcee
emcee is an extensible, pure-Python implementation of Goodman & Weare's Affine Invariant Markov chain Monte Carlo (MCMC) Ensemble sampler. It's designed for Bayesian parameter estimation.