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
Center for Computational Astrophysics
The Planet Huntress
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Is there another Earth out there? Flatiron Institute astronomer Megan Bedell is on the hunt for Earth 2.0. And she’s making new discoveries about sunlike stars in the process.
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
Upcoming Events
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03 Mon -
Event 9:00 a.m. - 4:00 p.m.
Hack the Hackathon
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Event 9:00 a.m. - 4:00 p.m.
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14 Fri -
Event 3:30 - 4:30 p.m.
CCA Colloquium: Cassandra Hall
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Event 3:30 - 4:30 p.m.
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04 Fri -
Event 3:30 - 4:30 p.m.
CCA Colloquium: Anastasios Fragkos
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Event 3:30 - 4:30 p.m.
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18 Fri -
Event 3:30 - 4:30 p.m.
CCA Colloquium: Kate Daniel
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Event 3:30 - 4:30 p.m.
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28 Mon -
Event 9:00 a.m. - 6:00 p.m.
CAMELS Workshop
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Event 9:00 a.m. - 6:00 p.m.
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01 Thu -
Workshop 8:00 a.m. - 5:00 p.m.
CAMELS Workshop
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Workshop 8:00 a.m. - 5:00 p.m.
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02 Fri -
Event 3:30 - 4:30 p.m.
CCA Colloquium: Xavier Prochaska
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Event 3:30 - 4:30 p.m.
Event Videos
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Dan Huber: The Demographic of Star and Exoplanets in the Era of TESS Gaia
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CCA N Body Workshop – Session 6: Galaxies
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CCA N Body Workshop – Session 7: Planetary Science
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CCA N Body Workshop – Session 8: Dwarf Galaxies & Star Formation
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Research Highlights
Chemodynamical Signatures of Bar Resonances in the Galactic Disk: Current Data and Future Prospects
A. Wheeler , I. Abril-Cabezas, W. H. Trick, F. Fragkoudi, M. Ness
The Galactic disk exhibits complex chemical and dynamical substructure thought to be induced by the bar, spiral arms, and satellites.…
The Astrophysical JournalThe Open Cluster Chemical Abundances and Mapping Survey. VI. Galactic Chemical Gradient Analysis from APOGEE DR17
N. Meyers, J. Donor, T. Spoo, P. M. Frinchaboy, K. Cunha, A. Price-Whelan, S. R. Majewski, R. L. Beaton, G. Zasowski, J. O'Connell, A. E. Ray, D. Bizyaev, C. Chiappini, D. A. García-Hernández, D. Geisler, H. Jönsson, R. R. Lane, P. Longa-Peña, I. Minchev, D. Minniti, C. Nitschelm, A. Roman-Lopes
The goal of the Open Cluster Chemical Abundances and Mapping (OCCAM) survey is to constrain key Galactic dynamic and chemical…
The Astronomical JournalModules for Experiments in Stellar Astrophysics (MESA): Time-Dependent Convection, Energy Conservation, Automatic Differentiation, and Infrastructure
A. Jermyn, E. B. Bauer, J. Schwab, R. Farmer, W. H. Ball, E. P. Bellinger, A. Dotter, M. Joyce, P. Marchant, J. S. G. Mombarg, W. M. Wolf, T. L. S. Wong, G. C. Cinquegrana, E. Farrell, R. Smolec, A. Thoul, M. Cantiello, F. Herwig, O. Toloza, L. Bildsten, R. H. D. Townsend, F. X. Timmes
We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics (MESA). The new auto_diff module…
arXiv: 2208.03651Director
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.