Gusty winds, flappy wings

Gusty, gaseous flows of FIRE: galactic winds in cosmological simulations with explicit stellar feedback

We present an analysis of the galaxy-scale gaseous outflows from the Feedback in Realistic Environments (FIRE) simulations. This suite of hydrodynamic cosmological zoom simulations resolves formation of star-forming giant molecular clouds to z = 0, and features an explicit stellar feedback model on small scales. Our simulations reveal that high-redshift galaxies undergo bursts of star formation...

Flappy Bird Game AI using Neural Networks

Deep Reinforcement Learning for Flappy Bird

Reinforcement learning is essential for applications where there is no single correct way to solve a problem. In this project, we show that deep reinforcement learning is very effective at learning how to play the game Flappy Bird, despite the high-dimensional sensory input. The agent is not given information about what the bird or pipes look like it must learn these representations and directl...

Physical effects on the Lyα forest flux power spectrum: damping wings, ionizing radiation fluctuations, and galactic winds

We explore several physical effects on the power spectrum of the Lyα forest transmitted flux. The effects we investigate here are usually not part of hydrodynamic simulations and so need to be estimated separately. The most important effect is that of high column density absorbers with damping wings, which add power on large scales. We compute their effect using the observational constraints on...

Clipping Wings