There will be an in-person viewing of the online seminar held in the CRA Visualization Lab (Boggs 1-44). Title: Astrometric Methods for Star-Based Navigation Abstract: Humans have used stars for … Continue reading "CRA Seminar: Dr. John Christian"
Title: Tilted Planets: Exciting Exoplanetary Obliquities via Spin-Orbit Resonances Abstract: The obliquity of a planet, the tilt between its spin and orbital axes, reflects the evolutionary history of the planet. … Continue reading "CRA Seminar: Yubo Su (Princeton University)"
Title: Black hole mergers in AGN disks and Few-body code SpaceHub Abstract: Active galactic nucleus (AGN) disks may be important sites for stellar mass binary black hole (BBH) mergers, but … Continue reading "CRA Seminar: Yihan Wang (Nevada Center for Astrophysics)"
Title: Intermediate-mass black holes: past, present, future Abstract: Despite their key importance from stellar to cosmological scales, intermediate-mass black holes (IMBHs) are one of the unsolved puzzles of modern astronomy … Continue reading "CRA Seminar: Giacomo Fragione (Northwestern)"
Title: Formation of Black Hole Binaries in AGN disks through Close Encounters Abstract: The possibility of binary black hole (BH) mergers in active galactic nucleus (AGN) accretion disks has recently … Continue reading "CRA Seminar: Jiaru Li (Cornell)"
Title: The role of AGN accretion disks in the formation of characteristic, low-frequency GW sources Accretion disks in active galactic nuclei (AGN) can enhance the formation of gravitational wave (GW) sources via the interaction of embedded stars and BHs with the surrounding gas. This can produce a substantial population of ‘gas-embedded’ GW sources across a range … Continue reading "CRA Seminar: Andrea Derdzinski (U. of Zurich)"
Title: Searches for gravitational-waves beyond compact binary coalescences Abstract: The Advanced LIGO and Virgo detectors have now completed three observing runs, and reported dozens of detections form compact binary mergers. As we observe more of the gravitational-wave universe, we may detect signals from novel sources. For example, core-collapse supernovae or cosmic string cusps may produce … Continue reading "CRA Seminar: Meg Millhouse (GaTech)"
Title: Multiscale Simulations of Star Formation from Molecular Clouds Abstract: Star formation lies at the center of many fundamental topics in astrophysics. No comprehensive, quantitative theory of star formation has been established due to the complex physics involved and the huge dynamic range of the problem. Using a series of MHD simulations of star formation … Continue reading "CRA Seminar: ChongChong He (U. of Maryland)"
Title: Hydrodynamical Evolution of Binary Black Holes Embedded in AGN Disks Abstract: Stellar-mass binary black holes (BBHs) embedded in active galactic nucleus (AGN) disks are promising progenitors of black hole mergers detected in gravitational waves (GW) by LIGO-VIRGO-KAGRA. Current observed mergers show distinct properties that may only be explained by this AGN channel, with a … Continue reading "CRA Seminar: Rixin Li (Cornell)"
Title: Neutrino astronomy with IceCube Connecting Photoelectrons to Supermassive Black Holes Abstract: The IceCube Neutrino Observatory, deployed beneath the South Pole, is the largest optical neutrino telescope in the World. … Continue reading "CRA Seminar: Hans Niederhausen"
