Results 71 to 80 of about 5,472,881 (330)

Forecasts for Warm Dark Matter from Photometric Galaxy Surveys

open access: yes, 2018
We present a Fisher matrix forecast for the sensitivity on the mass of a thermal warm dark matter (WDM) particle from current (DES-like) and future (LSST-like) photometric galaxy surveys using the galaxy angular power spectrum.
Martins, Jéssica S.   +2 more
core   +1 more source

Fast Neutron Detector Based on Hybrid 2D Perovskite Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
This work presents the direct detection of fast neutrons using flexible hybrid 2D perovskite (PEA2PbBr4) thin‐film detectors. Thanks to their high low‐Z elements content and good charge transport, these materials enable efficient neutron detection. The thin film configuration allowed the operation at low voltage, and offer scalability, flexibility, and
Ilaria Fratelli   +11 more
wiley   +1 more source

A Coscaling Grid for Athena++. II. Magnetohydrodynamics

open access: yesThe Astrophysical Journal Supplement Series
We extend the coscaling formalism of Habegger & Heitsch implemented in Athena++ to magnetohydrodynamics. The formalism relies on flow symmetries in astrophysical problems involving expansion, contraction, and center-of-mass motion. The formalism is fully
Fabian Heitsch, Roark Habegger
doaj   +1 more source

Ultra-diffuse galaxies in the Auriga simulations [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
We investigate the formation of ultra-diffuse galaxies (UDGs) using the Auriga high-resolution cosmological magnetohydrodynamical simulations of Milky Way–sized galaxies.
Shihong Liao   +9 more
semanticscholar   +1 more source

Non Thermal‐Driven Photocatalytic Ammonia Decomposition at Near‐Room Temperature on a Plasmonic Nanocone Array

open access: yesAdvanced Functional Materials, EarlyView.
Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui   +17 more
wiley   +1 more source

Mars Orientation Parameters Estimation with Simulated Same Beam Interferometry

open access: yesThe Astronomical Journal
The accurate determination of Mars orientation parameters (MOP) is essential for investigating the internal structure, seasonal variations of polar dry ice, and dynamic evolution of Mars.
Yixiao Liu   +5 more
doaj   +1 more source

Observable tests of self-interacting dark matter in galaxy clusters: cosmological simulations with SIDM and baryons [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
We present bahamas-SIDM, the first large-volume, $(400 \, h^{-1} \mathrm{\, Mpc})^{3}$, cosmological simulations including both self-interacting dark matter (SIDM) and baryonic physics.
A. Robertson   +7 more
semanticscholar   +1 more source

Flux‐Regulated Crystallization of Perovskites Using Machine Learning‐Predicted Solvent Evaporation Rates for X‐Ray Detectors

open access: yesAdvanced Functional Materials, EarlyView.
By integrating machine learning into flux‐regulated crystallization (FRC), accurate prediction of solvent evaporation rates in real time, improving crystallization control and reducing crystal growth variability by over threefold, is achieved. This enhances the reproducibility and quality of perovskite single crystals, leading to reproducible ...
Tatiane Pretto   +8 more
wiley   +1 more source

An Efficient Algorithm for Astrochemical Systems Using Stoichiometry Matrices

open access: yesThe Astrophysical Journal Supplement Series
Astrochemical simulations are a powerful tool for revealing chemical evolution in the interstellar medium. Astrochemical calculations require efficient processing of large matrices for the chemical networks.
Kazutaka Motoyama   +4 more
doaj   +1 more source

The Progenitors of Superluminous Type Ia Supernovae

open access: yesThe Astrophysical Journal, 2023
Recent observations of type Ia supernovae (SNe Ia) have discovered a subclass of “super-Chandrasekhar” SNe Ia (SC SNe Ia) whose high luminosities and low ejecta velocities suggest that they originate from the explosions of white dwarfs (WDs) with masses ...
Margot Fitz Axen, Peter Nugent
doaj   +1 more source

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