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astro-ph2000
Spiral structure parameters in the solar neighbourhood
D. Fernandez, X. Luri, F. Figueras +1
Two samples of O- and B-type stars and Cepheids with Hipparcos data have been used to characterize galactic rotation and spiral arm kinematics in the solar neighbourhood. An extens…
astro-ph2000★ 6 cited
The velocity field of young stars in the solar neighbourhood
J. Torra, D. Fernandez, F. Figueras +1
A sample of O- and B-type stars with Hipparcos astrometric data, ages computed from Strömgren photometry and radial velocities, has been used to characterize the structure, age and…
astro-ph2000★ 7 cited
Kinematics of young stars (I): Local irregularities
J. Torra, D. Fernandez, F. Figueras
The local velocity field of young stars is dominated by the galactic rotation, the kinematics of the Gould Belt and the nearest OB associations and open clusters, and the kinematic…