Kinematics of the Galaxy from Cepheids with proper motions from the Gaia DR1 catalogue

Abstract

The sample of classic Cepheids with known distances and line-of-sight velocities is supplemented by the proper motions from the Gaia DR1 catalog. From spatial velocities of 260 stars the components of the peculiar Solar velocity: (U,V,W)_\odot=(7.90,11.73,7.39)+/-(0.65,0.77,0.62) km/s, parameters of the Galactic rotation curve: Ω_0 =28.840+/-.33 km/s/kpc, Ω'_0=-4.05+/-0.10 km/s/kpc^2, Ω''_0=0.805+/-0.067 km/s/kpc^3 are obtained. For the adopted Galactocentric Solar distance R_0=8 kpc the linear circular velocity of the Local Standard of Rest is found as V_0=231+/-6 km/s.

11 pages, 4 figures, 2 tables. arXiv admin note: text overlap with arXiv:1611.00794

References in corpus (7)

• Trigonometric Parallaxes of High Mass Star Forming Regions: the Structure and Kinematics of the Milky Way
• Classical Cepheids and the spiral structure of the Milky Way
• Classical Cepheids in the Galactic outer ring R1R2'
• Estimation of the Galactic Spiral Pattern Speed from Cepheids
• Cepheid Kinematics and the Galactic Warp
• Determination of Galactic Rotation Parameters and the Solar Galactocentric Distance Ro from 73 Masers
• Orientation Parameters of the Cepheid System in the Galaxy

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