Results 161 to 170 of about 476,460 (296)
Spiral Structures of Disk Galaxies as Non-Axisymmetric Perturbations [PDF]
Satoshi Yabushita
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A Milky Way-like barred spiral galaxy at a redshift of 3. [PDF]
Costantin L +32 more
europepmc +1 more source
Comparison of HI spiral pattern by optical structure of other galaxies [PDF]
G. de Vaucouleurs
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Examination of the Functional Form of the Light and Mass Distribution in Spiral Arms
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
Gas Streaming in Barred Spiral Galaxies [PDF]
K. C. Freeman, L. Mestel
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Velocity Field in a Model of a Spiral Galaxy [PDF]
John M. Wallace, Judith A. Copeland
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The most important theory of the spiral arms of galaxies is the density wave theory based on the Lin-Shu dispersion relation. However, the density waves move with the group velocity towards the inner Lindblad resonance and tend to disappear. Various mechanisms to replenish the spiral waves have been proposed.
openaire +2 more sources
Polarized thermal emission from dust in a galaxy at redshift 2.6. [PDF]
Geach JE +7 more
europepmc +1 more source
Spirality: A Novel Way to Measure Spiral Arm Pitch Angle
We present the MATLAB code Spirality, a novel method for measuring spiral arm pitch angles by fitting galaxy images to spiral templates of known pitch. Computation time is typically on the order of 2 minutes per galaxy, assuming at least 8 GB of working ...
Boe, Benjamin +8 more
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