Astrophysics

Abstract: Remarkable experimental advances enabled creation of  highly tunable and controllable quantum systems of ultracold atoms, trapped ions, and superconducting quantum bits. These platforms proved to be uniquely suited for probing non...

We believe that supermassive black holes reside at the center of massive galaxies, where they can shine as an active galactic nucleus (AGN) when supplied with gas to accrete.  These black holes are believed to be important for regulating gas cooling...

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We develop a general approach to "interpret" what a network has learned by introducing strong inductive biases. In particular, we focus on Graph Neural Networks.
The technique works as follows: we first encourage sparse latent representations when...

Abstract: Observations have shown that nearly all galaxies harbor massive or supermassive black holes at their centers. Gravitational wave (GW) observations of these black holes will shed light on their growth and evolution, and the merger histories...

Abstract: I will review the state of the field of gravitational wave astrophysics, framing the challenges, current observations, and future prospects within the context of the predictions of Einstein's theory of general relativity.

Accretion is a ubiquitous process is the universe, shaping objects from planets to supermassive black holes. For accreters which posses a material surface, the accretion flow rapidly change configurations from a rotationally supported disk to the...

Finding low-scatter relationships in properties of complex systems (e.g., stars, supernovae, galaxies) is important to gain physical insights into them and/or to estimate their distances/masses. As the size of simulation/observational datasets grow...