Results 11 to 20 of about 10,292,209 (120)

Galaxy Zoo:dust in spiral galaxies [PDF]

open access: yes, 2010
We investigate the effect of dust on spiral galaxies by measuring the inclination dependence of optical colours for 24 276 well-resolved Sloan Digital Sky Survey (SDSS) galaxies visually classified via the Galaxy Zoo project.
Masters, Karen L.   +32 more
core   +1 more source

Morphology in the era of large surveys [PDF]

open access: yes, 2013
The study of galaxies has changed dramatically over the past few decades with the advent of large-scale astronomical surveys. These large collaborative efforts have made available high-quality imaging and spectroscopy of hundreds of thousands of systems,
Masters, Karen L.   +17 more
core   +1 more source

Galaxy Zoo and SPARCFIRE: constraints on spiral arm formation mechanisms from spiral arm number and pitch angles [PDF]

open access: yes, 2017
In this paper, we study the morphological properties of spiral galaxies, including measurements of spiral arm number and pitch angle. Using Galaxy Zoo 2, a stellar mass-complete sample of 6222 SDSS spiral galaxies is selected.
Masters, Karen L.   +40 more
core   +1 more source

A direct test of density wave theory in grand-design spiral galaxies [PDF]

open access: yes, 2018
The exact nature of the arms of spiral galaxies is still an open question1. It has been widely assumed that spiral arms in galaxies with two distinct symmetrical arms are the products of density waves that propagate around the disk, with the spiral arms ...
Masters, Karen L.   +13 more
core   +1 more source

The lifetime of grand design [PDF]

open access: yes, 2005
The lifetime of the structure in grand design spiral galaxies is observationally ill-determined, but is essentially set by how accurately the rotation of the pattern can be characterized by a single angular pattern speed. This paper derives a generalized
M. R. Merrifield   +5 more
core   +2 more sources

Origin and Evolution of Large-scale Magnetic Fields [PDF]

open access: yes, 2015
Magnetic elds are ubiquitous at all scales in the Universe and have been observed in galaxies and clusters of galaxies via observations of di use radio emission and Faraday Rotation Measures.
Barnes, DJ
core  

The Flocculent Structure of the Inner Milky Way Disk

open access: yesThe Astronomical Journal
Observations of H i published in 1957 by Westerhout and Schmidt were presented as showing a global face-on view of the spiral structure in the Milky Way. Since then, many studies have attempted to improve on the early map, perhaps presupposing our Galaxy
Dana S. Balser, W. B. Burton
doaj   +1 more source

Optimized Wavy Thermal Radiative Analysis of Electrochemically Ternary Hybrid Nanomaterials Affected by an Induced Magnetic Force: An ANN‐Based Levenberg–Marquardt Backpropagation Approach

open access: yesAdvanced Physics Research, EarlyView.
This diagram illustrates the wavy flow configuration of the model in a Cartesian coordinate system. It represents the heat and mass transfer characteristics of ternary hybrid nanofluids over a vertically wavy surface in the presence of an induced magnetic field and double‐diffusive mixed convection.
Latif Ahmad   +4 more
wiley   +1 more source

Galaxy Zoo:the dependence of morphology and colour on environment [PDF]

open access: yes, 2008
We analyse the relationships between galaxy morphology, colour, environment and stellar mass using data for over 100,000 objects from Galaxy Zoo, the largest sample of visually classified morphologies yet compiled.
Murray, P   +32 more
core   +1 more source

Targeting Amastigote and Trypomastigote Phases: Multi‐Epitope Vaccine Strategy Against Trypanosoma cruzi

open access: yesBiotechnology and Applied Biochemistry, EarlyView.
ABSTRACT Effective vaccines against Trypanosoma cruzi, the causative agent of Chagas disease, are urgently needed. Here, we report the design and in silico validation of a novel multiepitope vaccine construct targeting the key surface proteins ASP‐2 and gp82. Using a comprehensive immunoinformatics pipeline, we identified and selected 38 potent T‐cell (
Maria Karolaynne da Silva   +8 more
wiley   +1 more source

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