Astrophysics

Observations of fluctuations in the CMB provide information about primordial inhomogeneities in the universe. However, the B-mode polarization of the inflationary gravitational wave is contaminated by the Galactic dust and synchrotron foreground...

Most space and astrophysical plasmas are considered to be in turbulent state, often characterized by stochastic fluctuations. Many laboratory experiments and numerical simulations have revealed chaotic behavior in turbulent plasmas, but in-situ...

The Bahcall Lunch follow the astrophysics colloquium lecture. Registration is required by noon the previous Thursday so a meal can be provided.

The discovery of numerous relatively close planets orbiting low-mass stars signals a major planetary population that may be the primary environment explored in the search for life beyond the Solar System. The environments of these types of stars are...

The direct detection of gravitational waves in 2015, thanks to the LIGO and Virgo interferometers, opened a new window on our Universe. The discoveries during the first three observing runs already had an extraordinary impact on astrophysics...

Abstract: I will review a series of results regarding the extremal limit of generic black holes in both Einstein and Einstein-Maxwell theory. We will see that in AdS, at low temperatures, large tidal forces arise at the horizon. These tidal forces...