Results 71 to 80 of about 5,320,922 (369)

Constructing a Galaxy Cluster Catalog in IllustrisTNG300 Using the Mulguisin Algorithm

open access: yesThe Astrophysical Journal
We present a new simulated galaxy cluster catalog based on the IllustrisTNG simulation. We use the Mulguisin (MGS) algorithm to identify galaxy overdensities.
Lael Shin   +4 more
doaj   +1 more source

Grouped star formation: converting sink particles to stars in hydrodynamical simulations [PDF]

open access: yes, 2022
This is the final version. Available from Oxford University Press via the DOI in this recordData availability: The data underlying this paper will be shared on reasonable request to the corresponding author.Modelling star formation and resolving ...
Dobbs, CL   +3 more
core   +1 more source

A profile in FIRE: resolving the radial distributions of satellite galaxies in the Local Group with simulations [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
While many tensions between Local Group (LG) satellite galaxies and Λ cold dark matter cosmology have been alleviated through recent cosmological simulations, the spatial distribution of satellites remains an important test of physical models and ...
J. Samuel   +11 more
semanticscholar   +1 more source

CosmoHub: Interactive exploration and distribution of astronomical data on Hadoop [PDF]

open access: yesAstronomy and Computing, 2020
We present CosmoHub (this https URL), a web application based on Hadoop to perform interactive exploration and distribution of massive cosmological datasets.
P. Tallada   +15 more
semanticscholar   +1 more source

A Lightweight Procedural Layer for Hybrid Experimental–Computational Workflows in Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
We unveil a prototype hybrid‐workflow framework that fuses automatedcomputation with hands‐on experiments. Built atop pyiron, a lightweight, parameterized layer translates procedure descriptions into executable manual steps, syncing instrument settings, human interventions, and data capture in real‐time today.
Steffen Brinckmann   +8 more
wiley   +1 more source

Do Minihalos Affect Cosmic Reionization?

open access: yesThe Astrophysical Journal
The role of unresolved structures (“minihalos”) in determining the consumption of ionizing photons during cosmic reionization remains an unsolved problem in modeling cosmic reionization, despite recent extensive studies with small-box high-resolution ...
Nickolay Y. Gnedin
doaj   +1 more source

Discovering the unexpected in astronomical survey data

open access: yes, 2017
Most major discoveries in astronomy are unplanned, and result from surveying the Universe in a new way, rather than by testing a hypothesis or conducting an investigation with planned outcomes.
Norris, Ray P. (R17893)
core   +1 more source

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

open access: yesAdvanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi   +8 more
wiley   +1 more source

Merger-tree-based Galaxy Matching: A Comparative Study across Different Resolutions

open access: yesThe Astrophysical Journal
We introduce a novel halo/galaxy matching technique between two cosmological simulations with different resolutions, which utilizes the positions and masses of halos along their subhalo merger tree. With this tool, we conduct a study of resolution biases
Minyong Jung   +5 more
doaj   +1 more source

Spatially contrasted response of Devonian anoxia to astronomical forcing [PDF]

open access: yesClimate of the Past
The Devonian period, spanning from 419 to 359 million years ago, was marked by a warmer-than-present climate and recurring ocean anoxic events, with evidence increasingly suggesting a link between these events and astronomical forcing.
J. Gérard   +5 more
doaj   +1 more source

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