Kavli Affiliate: Roberto Maiolino | First 5 Authors: Jenny T. Wan, Sandro Tacchella, Benjamin D. Johnson, Kartheik G. Iyer, Joshua S. Speagle | Summary: The amount of power contained in the variations in galaxy star-formation histories (SFHs) across a range of timescales encodes key information about the physical processes which modulate star formation. Modelling the […]
Kavli Affiliate: Paul L. Schechter | First 5 Authors: Paul L. Schechter, Dominique Sluse, Erik A. Zaborowski, Alex Drlica-Wagner, Cameron Lemon | Summary: A quadruply lensed source, J125856.3-031944, has been discovered using the DELVE survey and WISE W1 – W2 colors. Followup direct imaging carried out with the MPIA 2.2 m and the Baade 6.5 […]
Kavli Affiliate: Lee McCuller | First 5 Authors: James W. Gardner, Tuvia Gefen, Simon A. Haine, Joseph J. Hope, John Preskill | Summary: Although measuring the deterministic waveform of a weak classical force is a well-studied problem, estimating a random waveform, such as the spectral density of a stochastic signal field, is much less well-understood […]
Kavli Affiliate: Luis C. Ho | First 5 Authors: Muxin Liu, Lile Wang, Xiaoting Fu, Luis C. Ho, | Summary: Outflowing stars impinging upon ambient gas experience accelerations due to the gravitational feedback from the morphology of the interaction betweem the outflow and the ambient gas. Such "negative dynamical friction" (NDF), in contrast to the […]
Kavli Affiliate: Luis C. Ho | First 5 Authors: Muxin Liu, Lile Wang, Xiaoting Fu, Luis C. Ho, | Summary: Outflowing stars impinging upon ambient gas experience accelerations due to the gravitational feedback from the interaction morphology between the outflow and the ambient gas. Such “negative dynamical friction” (NDF), in contrast to the conventional “dynamical […]
Kavli Affiliate: Toshiya Namikawa | First 5 Authors: Toshiya Namikawa, , , , | Summary: We calculate the cosmic microwave background (CMB) $B$-mode power spectrum resulting from anisotropic cosmic birefringence, without relying on the thin approximation of the last scattering surface. Specifically, we consider the influence of anisotropic cosmic birefringence arising from massless axion-like particles. […]
Kavli Affiliate: Erin Kara | First 5 Authors: Minghao Yue, Anna-Christina Eilers, Tonima Tasnim Annana, Christos Panagiotou, Erin Kara | Summary: Recent {em James Webb Space Telescope (JWST)} observations have revealed a population of compact extragalactic objects at $zgtrsim4$ with red near-infrared colors, which have been dubbed as “Little Red Dots" (LRDs). The spectroscopically-selected LRDs […]
Kavli Affiliate: Erin Kara | First 5 Authors: Minghao Yue, Anna-Christina Eilers, Tonima Tasnim Ananna, Christos Panagiotou, Erin Kara | Summary: Recent {em James Webb Space Telescope (JWST)} observations have revealed a population of compact extragalactic objects at $zgtrsim4$ with red near-infrared colors, which have been dubbed as “Little Red Dots" (LRDs). The spectroscopically-selected LRDs […]
Kavli Affiliate: Erin Kara | First 5 Authors: Minghao Yue, Anna-Christina Eilers, Tonima Tasnim Ananna, Christos Panagiotou, Erin Kara | Summary: Recent James Webb Space Telescope (JWST) observations have revealed a population of compact extragalactic objects at $zgtrsim4$ with red near-infrared colors, which have been dubbed as “Little Red Dots" (LRDs). The spectroscopically-selected LRDs exhibit […]
Kavli Affiliate: Claudio Ricci | First 5 Authors: John Orlowski-Scherer, Thomas J. Maccarone, Joe Bright, Tomasz Kaminski, Michael Koss | Summary: The study of transient and variable events, including novae, active galactic nuclei, and black hole binaries, has historically been a fruitful path for elucidating the evolutionary mechanisms of our universe. The study of such […]