Measuring the polarization state of gravitational waves Alternative theories of gravity predict additional polarization states to the two tensor modes of general relativity. LIGO/Virgo have provided the first observation constraints on polarization. Pulsar Timing and Astrometry can be used to set even stronger constraints. I will give an update of the current status of polarization … Continue reading "CRA Seminar: Neil Cornish (Montana State)"

Title: Stellar Physics: from Plasma Dynamics to Stellar Evolution Abstract: New data available from recent space-missions Kepler and GAIA, as well as up-coming missions TESS and PLATO, has introduced a new era for stellar physics. New theoretical/computational models are needed to interpret the wealth of detailed new data. This includes fundamental theories of stellar convection, … Continue reading "CRA Seminar: Dr Jane Pratt"

Title: Dynamical Assembly of Black Hole Binaries in Dense Star Systems Abstract: The discovery of merging black hole (BH) binaries by the LIGO and Virgo experiments has initiated the era of gravitational wave (GW) astrophysics. Detailed comparisons between theoretical and observed waveforms have already tested classical general relativity, and placed stringent constraints on alternative theories … Continue reading "CRA Seminar (Dr. Nicholas Stone, Columbia University)"