Kavli Affiliate: Salvatore Vitale | First 5 Authors: Sylvia Biscoveanu, Maximiliano Isi, Vijay Varma, Salvatore Vitale, | Summary: An accurate and precise measurement of the spins of individual merging black holes is required to understand their origin. While previous studies have indicated that most of the spin information comes from the inspiral part of the […]
Kavli Affiliate: Yukinobu Toda | First 5 Authors: Yukinobu Toda, , , , | Summary: We show the existence of semiorthogonal decompositions of Donaldson-Thomas categories for $(-1)$-shifted cotangent derived stacks associated with $Theta$-stratifications on them. Our main result gives an analogue of window theorem for categorical DT theory, which has applications to d-critical analogue of […]
Kavli Affiliate: Yukinobu Toda | First 5 Authors: Yukinobu Toda, , , , | Summary: We prove two kinds of $mathbb{Z}/2$-periodic Koszul duality equivalences for triangulated categories of matrix factorizations associated with $(-1)$-shifted cotangents over quasi-smooth affine derived schemes. We use this result to define $mathbb{Z}/2$-periodic version of Donaldson-Thomas categories for local surfaces, whose $mathbb{C}^{ast}$-equivariant […]
Kavli Affiliate: Austin J. Minnich | First 5 Authors: Nachiket R. Naik, Austin J. Minnich, , , | Summary: Silicon-germanium heterojunction bipolar transistors (HBTs) are of interest as low-noise microwave amplifiers due to their competitive noise performance and low cost relative to III-V devices. The fundamental noise performance limits of HBTs are thus of interest, […]
Kavli Affiliate: Yasunori Nomura | First 5 Authors: Kevin Langhoff, Chitraang Murdia, Yasunori Nomura, , | Summary: We study the redundancies in the global spacetime description of the eternally inflating multiverse using the quantum extremal surface prescription. We argue that a sufficiently large spatial region in a bubble universe has an entanglement island surrounding it. […]
Kavli Affiliate: Scott K. Cushing | First 5 Authors: Hanzhe Liu, Isabel M. Klein, Jonathan M. Michelsen, Scott K. Cushing, | Summary: Transient X-ray absorption techniques can measure ultrafast dynamics of the elemental edges in a material or multiple layer junction, giving them immense potential for deconvoluting concurrent processes. However, the interpretation of the photoexcited […]
Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Fakhri S. Zahedy, Hsiao-Wen Chen, Thomas M. Cooper, Erin T. Boettcher, Sean D. Johnson | Summary: (Abridged) We present a systematic investigation of physical conditions and elemental abundances in four optically thick Lyman-limit systems (LLSs) at $z=0.36-0.6$ discovered within the Cosmic Ultraviolet Baryon Survey (CUBS). CUBS […]
Kavli Affiliate: Lars Bildsten | First 5 Authors: Curtis McCully, Saurabh W. Jha, Richard A. Scalzo, D. Andrew Howell, Ryan J. Foley | Summary: Type Iax supernovae represent the largest class of peculiar white-dwarf supernovae. The type Iax SN~2012Z in NGC 1309 is the only white dwarf supernova with a detected progenitor system in pre-explosion […]
Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Anna-Christina Eilers, Joseph F. Hennawi, Frederick B. Davies, Robert A. Simcoe, | Summary: The extents of proximity zones of high-redshift quasars enable constraints on the timescales of quasar activity, which are fundamental for understanding the growth of the supermassive black holes (SMBHs) that power the quasars’ […]
Kavli Affiliate: George Ricker | First 5 Authors: Étienne Artigau, Guillaume Hébrard, Charles Cadieux, Thomas Vandal, Neil J. Cook | Summary: We present the discovery of an $18.5pm0.5$M$_{rm Jup}$ brown dwarf (BD) companion to the M0V star TOI-1278. The system was first identified through a percent-deep transit in TESS photometry; further analysis showed it to […]