Kavli Affiliate: Joshua Berke, Loren Frank, and Razi Haque | Authors: Xulu Sun, Alison E. Comrie, Ari E. Kahn, Emily J. Monroe, Abhilasha Joshi, Jennifer A. Guidera, Eric L. Denovellis, Timothy A. Krausz, Jenny Zhou, Paige Thompson, Jose Hernandez, Allison Yorita, Razi Haque, Joshua D. Berke, Nathaniel D. Daw and Loren M. Frankn | Summary: […]
Kavli Affiliate: John Carlstrom | Summary:Event Horizon Telescope (EHT) images of the supermassive black hole M87* depict an asymmetric ring of emission. General relativistic magnetohydrodynamic (GRMHD) models of M87* and its accretion disk predict that the amplitude and location of the ring’s peak brightness asymmetry should fluctuate due to turbulence in the source plasma. We […]
Kavli Affiliate: Thomas Crawford | Summary:Event Horizon Telescope (EHT) images of the supermassive black hole M87* depict an asymmetric ring of emission. General relativistic magnetohydrodynamic (GRMHD) models of M87* and its accretion disk predict that the amplitude and location of the ring’s peak brightness asymmetry should fluctuate due to turbulence in the source plasma. We […]
Kavli Affiliate: Sara Seager | Summary:Early JWST observations of TRAPPIST-1 have revealed an unexpected puzzle: energetic white-light flares ($rmE > 10^30$ erg) reach temperatures of only $sim$3500–4000,K, nearly three times cooler than typical solar flares, which peak around 9000–10000,K. Here we explain this difference by identifying the physical mechanism that regulates flare temperatures on late […]