2021 – Page 52 – Kavli Institute Pre-Print Publications

Design and production of the high voltage electrode grids and electron extraction region for the LZ dual-phase xenon time projection chamber

Posted by klaurent June 11, 2021Stanford

Kavli Affiliate: T. A. Shutt | First 5 Authors: R. Linehan, R. L. Mannino, A. Fan, C. M. Ignarra, S. Luitz | Summary: The dual-phase xenon time projection chamber (TPC) is a powerful tool for direct-detection experiments searching for WIMP dark matter, other dark matter models, and neutrinoless double-beta decay. Successful operation of such a […]

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Cosmology with Love: Measuring the Hubble constant using neutron star universal relations

Posted by klaurent June 11, 2021Chicago

Kavli Affiliate: Daniel E. Holz | First 5 Authors: Deep Chatterjee, Abhishek Hegade K. R., Gilbert Holder, Daniel E. Holz, Scott Perkins | Summary: Gravitational-wave cosmology began in 2017 with the observation of the gravitational waves emitted in the merger of two neutron stars, and the coincident observation of the electromagnetic emission that followed. Although […]

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Chandra/LETGS Studies of the Collisional Plasma in 4U 1626-67

Posted by klaurent June 11, 2021MIT

Kavli Affiliate: Norbert Schulz | Summary:We present an analysis of chandra/LETGS observations of the ultracompact X-ray binary (UCXB) 4U 1626$-$67, continuing our project to analyze the existing Chandra gratings data of this interesting source. The extremely low mass, hydrogen-depleted donor star provides a unique opportunity to study the properties and structure of the metal-rich accreted […]

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Chandra/LETGS Studies of the Collisional Plasma in 4U 1626-67

Posted by dbos June 11, 2021MIT

Kavli Affiliate: Norbert S. Schulz | First 5 Authors: Paul B. Hemphill, Norbert S. Schulz, Herman M. Marshall, Deepto Chakrabarty, | Summary: We present an analysis of chandra/LETGS observations of the ultracompact X-ray binary (UCXB) 4U 1626$-$67, continuing our project to analyze the existing Chandra gratings data of this interesting source. The extremely low mass, […]

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Chandra/LETGS Studies of the Collisional Plasma in 4U 1626-67

Posted by dbos June 11, 2021MIT

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The Multiverse in an Inverted Island

Posted by klaurent June 9, 2021Tokyo

Kavli Affiliate: 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. Consequently, the semiclassical physics of the multiverse, which is all we need […]

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The Multiverse in an Inverted Island

Posted by klaurent June 9, 2021Tokyo

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. […]

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The Cosmic Ultraviolet Baryon Survey (CUBS) — III. Physical properties and elemental abundances of Lyman limit systems at $z<1$

Posted by klaurent June 8, 2021MIT

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 […]

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Detecting and Characterizing Young Quasars II: Four Quasars at $zsim 6$ with Lifetimes $<10^4$ years

Posted by klaurent June 8, 2021MIT

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’ […]

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Indirect dark matter searches at ultrahigh energy neutrino detectors

Posted by klaurent June 8, 2021Chicago

Kavli Affiliate: Angela V. Olinto | First 5 Authors: Claire Guépin, Roberto Aloisio, Luis A. Anchordoqui, Austin Cummings, John F. Krizmanic | Summary: High to ultrahigh energy neutrino detectors can uniquely probe the properties of dark matter $chi$ by searching for the secondary products produced through annihilation and/or decay processes. We evaluate the sensitivities to […]

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