| October 2025 |
| Monday | Tuesday | Wednesday | Thursday | Friday |
| 29 Grant Remmen, Strings from almost nothing (12:30 PM - 1:30 PM) | 30 Isabel Sands, Astro-particle Phenomena from Dark Matter and Cosmic Rays in MHD Galaxy Formation Simulations (2:00 PM - 3:15 PM) + Abstract | 1 Fabrizio Rompineve, Gravitational waves from the early Universe and cosmic Domain Walls (2:00 PM - 3:15 PM) + Abstract Mathew Calkins (4:00 PM - 5:30 PM) | 2 Astro Journal Club, Ian Williams & Arjun Suresh (11:00 AM - 12:00 PM) Daniel Harlow, Quantum black holes and the emergence of space and time (4:00 PM - 5:30 PM) + Abstract | 3 Andrea Cappelli, Hydrodynamics with anomalies and effective field theory (1:30 PM - 2:30 PM) + Abstract |
| 6 Gus Beane, How To Simulate a Galaxy (12:30 PM - 1:30 PM) | 7 Gabriele Franciolini, Searching for subsolar mass primordial black holes with gravitational waves (2:00 PM - 3:15 PM) + Abstract | 8 Oliver Janssen, A prior on initial conditions in inflation from the gravitational path integral? (2:00 PM - 3:00 PM) + Abstract Mathew Calkins (4:00 PM - 5:30 PM) | 9 Astro Journal Club, Ian Williams & Arjun Suresh (11:00 AM - 12:00 PM) Marcelo Rozenberg, Simple Memristive Circuits for Brain-Inspired Computing (4:00 PM - 5:30 PM) + Abstract | 10 Lukas Lindwasser, Where is the KdV equation? Mapping the space of integrable equations (12:00 PM - 1:00 PM) + Abstract |
| 13 | 14 Eliot Quataert, The Fates of Stars Orbiting too Close to Massive Black Holes (2:00 PM - 3:15 PM) + Abstract | 15 Maryum Sayeed, Looking for Companionship: Testing Binarity of Lithium-Rich Red Giants (11:00 AM - 11:30 AM) + Abstract Maria Nocchi, A double-copy picture of strings in AdS (2:00 PM - 3:00 PM) + Abstract Mathew Calkins (4:00 PM - 5:30 PM) | 16 Astro Journal Club, Ian Williams & Arjun Suresh (11:00 AM - 12:00 PM) Simon Sponberg, Supra-resonant Dynamics and Self-excited Oscillations in Insect Flight (4:00 PM - 5:30 PM) + Abstract | 17 Eliezer Rabinovici, On Persistent Symmetry Breaking (2:00 PM - 3:00 PM) + Abstract |
| 20 Itai Linial, Dynamics and Formation of Energetic Transients near Massive Black Holes (12:30 PM - 1:30 PM) | 21 Colin Hill, Uncovering Physics Beyond the Standard Model in the Cosmic Microwave Background (2:00 PM - 3:15 PM) + Abstract | 22 Badal Bhalla, Three-body Encounters with Primordial Black Holes (11:00 AM - 12:00 PM) -- Abstract: Stellar binaries have historically provided a rich target in the search for exotic compact objects such as primordial black holes (PBHs) or MACHOs. In a three-body interaction involving a PBH and a binary star system, the binary can either lose or gain a significant amount of energy from the PBH, leading to a change in its orbital period. We show that a few fast-moving perturbers can leave stochastic perturbations in systems that are measured with great precision. This opens a new class of dynamical probes with potential applications to asteroid-mass DM candidates. PBHs could also participate in exchange processes, in which one component of a binary system is ejected and replaced by the black hole itself. We study the rate of exchange processes and find that many such PBH binaries plausibly exist in the Solar neighborhood, and show that this process can account for observed binary systems whose properties run counter to the predictions of isolated binary evolution. Elizabeth Himwich, w(1+infinity) Symmetry in 4D Gravitational Scattering and Celestial Holography (2:00 PM - 3:15 PM) + Abstract Mathew Calkins (4:00 PM - 5:30 PM) | 23 Astro Journal Club, Ian Williams & Arjun Suresh (11:00 AM - 12:00 PM) Priyamvada Natarajan, New Insights Into the Formation of the First Black Holes (4:00 PM) + Abstract | 24 |
| 27 Hector Afonso Cruz, The First Billion Years in Seconds: A Fast Analytical Model for the 21-cm Cosmology with Population III Stars (12:30 PM - 1:30 PM) Marc Henneaux, The Wheeler-DeWitt equation and the BMS symmetry (2:00 PM - 2:50 PM) + Abstract | 28 Alvise Raccanelli, Learning clustering in Plato’s cave (11:00 AM - 12:00 PM) + Abstract Neelima Sehgal, Discoveries from CMB-HD (2:00 PM - 3:15 PM) + Abstract Javad Shabani, Chalk Talk: 2025 Nobel Prize Winners Research (3:30 PM - 4:45 PM) + Abstract | 29 Saniya Heeba, Dark Matter @ Finite Temperature (2:00 PM - 3:15 PM) + Abstract Mathew Calkins (4:00 PM - 5:30 PM) | 30 Astro Journal Club, Ian Williams & Arjun Suresh (11:00 AM - 12:00 PM) Thibault Damour, High-Precision Gravitational Scattering (2:00 PM - 3:00 PM) Stefano Martiniani, Though This Be Disorder, Yet There Is Order in’t (4:00 PM - 5:30 PM) + Abstract | 31 Sebastian-Philip Harris, Holographic Interfaces in Symmetric Product Orbifolds (11:00 AM - 12:15 PM) + Abstract Chrysoula Markou, Building string spectra (12:30 PM - 1:30 PM) + Abstract |