Results 51 to 60 of about 109,816 (295)

2a Results: galaxy to cloud scales

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Simulations from the scales of isolated galaxies to clouds have been instrumental in informing us about molecular cloud formation and evolution. Simulations are able to investigate the roles of gravity, feedback, turbulence, heating and cooling, and ...
Clare Dobbs
doaj   +1 more source

The Galactic Branches as a Possible Evidence for Transient Spiral Arms

open access: yes, 2015
With the use of a background Milky-Way-like potential model, we performed stellar orbital and magnetohydrodynamic (MHD) simulations. As a first experiment, we studied the gaseous response to a bisymmetric spiral arm potential: the widely employed cosine ...
Gómez, Gilberto C.   +2 more
core   +1 more source

Star formation and ISM morphology in tidally induced spiral structures [PDF]

open access: yes, 2017
Tidal encounters are believed to be one of the key drivers of galactic spiral structure in the Universe. Such spirals are expected to produce different morphological and kinematic features compared to density wave and dynamic spiral arms. In this work we
Benincasa, Samantha M.   +4 more
core   +2 more sources

Arm classifications for spiral galaxies

open access: yesThe Astrophysical Journal, 1987
On presente la classification de 762 galaxies.
Debra Meloy Elmegreen   +1 more
openaire   +1 more source

Validation of the Pediatric Arthritis Ultrasound Scoring System for the Elbow, Wrist, and Finger Joints in Children With Juvenile Idiopathic Arthritis

open access: yesArthritis Care &Research, EarlyView.
Objective We aimed to validate the Pediatric Arthritis Ultrasound Scoring System (PAUSS) for upper extremity joints in children with juvenile idiopathic arthritis (JIA). Methods Children with JIA were evaluated for elbow, wrist, or finger arthritis by clinical examination (CE) and musculoskeletal ultrasound (MSUS) with images scored according to the ...
Patricia Vega‐Fernandez   +12 more
wiley   +1 more source

A Multiwavelength Investigation of Spiral Structures in z > 1 Galaxies with JWST

open access: yesThe Astrophysical Journal Letters
Recent JWST observations have revealed the prevalence of spiral structures at z > 1. Unlike in the local Universe, the origin and the consequence of spirals at this epoch remain unexplored. We use public JWST/NIRCam data from the COSMOS-Web survey to map
Boris S. Kalita   +20 more
doaj   +1 more source

Examination of the Functional Form of the Light and Mass Distribution in Spiral Arms

open access: yesGalaxies
Spiral arms are a common feature of local galaxies, but the exact form of the distribution of mass and light in them is not well known. In this work, we aim to measure this distribution as accurately as possible, focusing on individual spiral arms and ...
Ilia V. Chugunov   +2 more
doaj   +1 more source

Zoom-in cosmological hydrodynamical simulation of a star-forming barred, spiral galaxy at redshift z=2 [PDF]

open access: yes, 2019
Accepted for publication in MNRASWe present gas and stellar kinematics of a high-resolution zoom-in cosmological chemodynamical simulation, which fortuitously captures the formation and evolution of a star-forming barred spiral galaxy, from redshift $z ...
Kobayashi, Chiaki   +2 more
core   +5 more sources

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

open access: yesAdvanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut   +16 more
wiley   +1 more source

Revealing the Bifurcations of the Milky Way Spiral Arms Based on Hi-GAL and ATLASGAL Clumps

open access: yesThe Astronomical Journal
The spiral structure of the Milky Way remains under debate. Y. Xu et al. proposed, for the first time, a multiple-arm morphology for our Galaxy, with two spiral arms in the inner disk bifurcating outward alongside additional independent arms in the outer
Deyun Kong   +6 more
doaj   +1 more source

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