Results 141 to 150 of about 72,560 (265)
, 2022 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
The Redshift of GRB 190829A/SN 2019oyw: A Case Study of GRB-SN Evolution
The Astrophysical JournalThe nearby long gamma-ray burst (GRB) 190829A was observed using the Hubble Space Telescope/Wide Field Camera 3/infrared grisms about four weeks to 500 days after the burst.
Kornpob Bhirombhakdi +9 more
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Distribution of Dust and H II Regions in Spiral Galaxies [PDF]
, 1972 B. T. Lynds
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Can the Dynamo of Spiral-arm Galaxies Be Explained by Anisotropic Conductivity?
The Astrophysical JournalThe possibility of generating a magnetic field by a dynamo effect with anisotropic electrical conductivity rather than turbulent flow has been demonstrated theoretically and experimentally.
Paul Gomez +2 more
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Polarized thermal emission from dust in a galaxy at redshift 2.6. [PDF]
Nature, 2023 Geach JE +7 more
europepmc +1 more source
Remarks on the reduction of radial velocities within spiral galaxies
, 1955 Jürgen Stock
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The Astrophysical JournalWe analyze bars formed in N -body simulations to investigate two key aspects of stellar kinematic structure of barred galaxies: the angular distributions of the radial and azimuthal components of stellar velocities, and the impact of bars on rotation ...
Seungwon Baek +3 more
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Spiral structure of the Galaxy Derived from the Hat Creek survey of neutral hydrogen [PDF]
, 1970 Harold F. Weaver
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Radio Properties of Active Nearby Spiral Galaxies [PDF]
, 1978 A. G. de Bruyn
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