1999 · 25 citations · 1 references
Natural SciencesAstronomyPhysicsAstrophysicsSolar AstronomyStellar AstronomyGalactic DiskSolar AstrophysicsSolar PhysicsSolar RotationSpiral StructureStellar RotationCorotation ResonancesDisk RotationDisplacementResonanceSpiral Density WavesSpiral MorphologySpiral WavesVelocity Field Characterization
The total component velocity field of Cepheids was analysed in terms of a disk galaxy model perturbed by spiral density waves. The main result is: the Sun is situated very close to the corotation resonance where the rotation velocities of the disk and of the spiral pattern coincide. The displacement R of the Sun from the corotation circle is: R 0:1 kpc.
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Technometrics · 2005 · 18.1K citations
Business, Biostatistics, Mathematics +17