Title: Change and Observables in Hamiltonian General Relativity   Abstract: Canonical (Hamiltonian) General Relativity and the associated project in quantum gravity are said to suffer from a problem of missing change, especially in "observables": part of the "problem of time." This talk addresses this problem by reflecting on definitions of observables. Typically observables in Hamiltonian … Continue reading "CRA Seminar: Dr. J. Brian Pitts (University of Cambridge)"

## Scalable Space-time adaptivity for Simulations of Binary Black Hole Intermediate-Mass-Ratio-Inspirals We present a highly scalable framework that targets problems of interest to the numerical relativity and broader astrophysics communities. … Continue reading "CRA seminar (Hari Sundar)"

Title: Wind noise mitigation in LIGO India structure. Abstract: We will discuss the observations that necessitate a detail study of wind noise effects on the LIGO-India structure and different ways … Continue reading "CRA seminar (Prof. Rahul Prasad Nigam)"

Title/Abstract: 1. 10,000 solar mass black hole in NGC 4395 - primordial or no AGN feedback? I will present the reverberation-mapping study of the lowest-luminosity Seyfert 1 galaxy NGC 4395, … Continue reading "CRA seminar (Prof. Jong-Hak Woo)"

Web: https://ccrg.rit.edu/user/jacob.lange Title: RIFT'ing the Waves: An algorithm to perform Rapid parameter inference on gavitational wave sources via Iterative FiTing Abstract: As the gravitational wave (GW) observatories get more sensitive, … Continue reading "CRA Seminar by Jacob Lange (RIT)"

Web: "https://space.mit.edu/people/london-lionel-t" Title: On the gravitational wave multipole moments of systems with angular momentum Abstract: Since Einstein's quadrupole formalism, multipolar analysis has played a central role in gravitational wave theory. … Continue reading "CRA seminar by Dr. Lionel London (MIT)"

Web:https://phys.washington.edu/people/sanjay-reddy Title: Neutron stars in the multi-messenger era Abstract: About 50 years after their discovery, neutron stars are poised to take center stage in this era of multi-messenger astrophysics.  I … Continue reading "CRA seminar by Dr. Sanjay Reddy (University of Washington)"