Astrophysics

The Bahcall Lunch follows the astrophysics colloquium lecture. 

The gas-star formation-feedback "matter cycle" acts in many ways as the engine of galaxy evolution. Over the last decade, the PHANGS surveys have carried out surveys across the electromagnetic spectrum aimed at resolving galaxies into the...

Tidal effects serve as a useful tool to study compact objects. In this talk, I will present how the worldline effective field theory (EFT) can be applied to examine the tidal responses of compact objects. This approach offers a robust framework for...

Abstract: Current gravitational-wave detectors are being upgraded, and plans are developing for future detectors with greater sensitivity over broader frequency bands.  As instruments improve and develop, more cycles of sources’ gravitational...

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...

In 1970, Allan Sandage famously described Cosmology as "A search for two numbers". In the half-century since that description of the field was penned, as Stage III cosmic surveys come to an end and Stage-IV surveys begin taking data, the field finds...

The discovery of the Higgs boson by the ATLAS and CMS experiments at CERN’s Large Hadron Collider (LHC) marks a breakthrough in particle physics, and it stands with the greatest scientific discoveries of all time. The Higgs boson is a ripple of a...

Precision observations of the cosmos have established the concordance model of cosmology, but deep questions remain about the origin of cosmic structure and the fundamental nature of the dark sector. Further, significant discrepancies have arisen in...