Investigation of Negative K-Effect Using the Osaca Catalogue

Abstract

We created and are constantly updating the Orion Spiral Arm CAtalogue (OSACA) for stars with known coordinates, parallaxes, proper motions and radial velocities. It is shown that there is an effect of contraction appearing in motion of giants of A0--A5 spectral classes which attains a value of K=-13+-2 km/s/kpc. We try to link this effect to the periodic structure of residual velocity field of stars in the solar neighborhood, which is caused by spiral density waves.

3 pages

References in corpus (2)

• Kinematics of young stars. II. Galactic spiral structure
• The Shape and Scale of Galactic Rotation from Cepheid Kinematics

Cited by in corpus (6)

• H-alpha Activity of Old M Dwarfs: Stellar Cycles and Mean Activity Levels For 93 Low-Mass Stars in the Solar Neighborhood
• A Gaia study of the Hyades open cluster
• Secretly Eccentric: The Giant Planet and Activity Cycle of GJ 328
• Galactic Rotation Parameters from Data on Open Star Clusters
• Kinematics of Tycho-2 Red Giant Clump Stars
• Milky Way Globular Clusters: close encounter rates with each other and with the Central Supermassive Black Hole