Astrophysics

Stars orbiting sufficiently close to massive black holes inevitably inspiral towards the black hole due to gravitational wave radiation. The fate of such stars is subtle and depends on an interplay between tidal heating of the star, mass transfer...

In the last few decades, statistical analysis of cosmic microwave background (CMB) temperature fluctuations has established the standard model of cosmology with high precision. The next frontier lies in measuring the spectral shape of the CMB and...

Abstract: Reconnection is regularly observed at current sheets in the solar wind at 1AU, and the scalings of these current sheets suggest that they are dynamically formed by the turbulence itself. Theoretical considerations suggest that reconnection...

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

We present results from the James Webb Space Telescope (JWST) Prime Extragalactic Areas and Reionization and Lensing Science (PEARLS) program in the direction of galaxy clusters, from the spectacle of "first light" observations to the scene of vast...

The cosmic velocity field is an unbiased probe of the total matter distribution but is challenging to measure directly at intermediate and high redshifts. The large-scale velocity field imprints a signal in the cosmic microwave background (CMB)...

Abstract: We focus on understanding how the synchrotron emission morphology of astrophysical jet phenomena is influenced by physical properties of the relativistic plasma within the jet stream. To achieve this, we compare observational data in multi...

Each week, we hold a relatively informal seminar/discussion series with an emphasis on extra-galactic and large-scale structure astrophysics.

During Galread a leader/visitor presents a recent paper to the discussion group. The PDF of the paper is...