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- Lawrence Berkeley National LaboratoryUS199 papers
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61 papers · 1 filter
Revised Mass-to-Light Ratios For Nearby Galaxy Groups and Clusters
Yutong Shan, Michael McDonald, Stephane Courteau
We present a detailed investigation of the cluster stellar mass-to-light (M*/L) ratio and cumulative stellar masses, derived on a galaxy-by-galaxy basis, for 12 massive (M500 ~ 10^…
Invariant characterization of the Kerr spacetime: Locating the horizon and measuring the mass and spin of rotating black holes using curvature invariants
Majd Abdelqader, Kayll Lake
We provide an invariant characterization of the physical properties of the Kerr spacetime. We introduce two dimensionless invariants, constructed out of some known curvature invari…
Oscillations of coefficients of Dirichlet series attached to automorphic forms
Jaban Meher, M. Ram Murty
For , let be an irreducible cuspidal automorphic representation of with unitary central character. Let be the coeffici…
Central density cusps in the Lemaître-Tolman solutions
Kayll Lake
The character of the central density profile in the Lemaître-Tolman (LT) solutions plays a fundamental role in their application as cosmological models. This same character is stud…
Theory of phonon-modified quantum dot photoluminescence intensity in structured photonic reservoirs
Kaushik Roy-Choudhury, Stephen Hughes
The spontaneous emission rate of a quantum dot coupled to a structured photonic reservoir is determined by the frequency dependence of its local density of photon states. Through p…
The calibration system for the photomultiplier array of the SNO+ experiment
R. Alves, S. Andringa, S. Bradbury +20
A light injection system using LEDs and optical fibres was designed for the calibration and monitoring of the photomultiplier array of the SNO+ experiment at SNOLAB. Large volume,…