English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We have determined the Galactic rotation parameters and the solarGalactocentric distance R_0 by simultaneously solving Bottlinger's kinematicequations using data on masers with known line-of-sight velocities and highlyaccurate trigonometric parallaxes and proper motions measured by VLBI. Oursample includes 73 masers spanning the range of Galactocentric distances from 3to 14 kpc. The solutions found are Omega_0 = 28.86 +/- 0.45 km/s/kpc, Omega'_0= -3.96 +/- 0.09 km/s/kpc^2, Omega"_0 =0.790 +/- 0.027 km/s/kpc^3, and R_0=8.3+/- 0.2 kpc.In this case, the linear rotation velocity at the solar distance Rois V_0=241 +/- 7 km/s. Note that we have obtained the Ro estimate, which is ofgreatest interest, from masers for the first time; it is in good agreement withthe most recent estimates and even surpasses them in accuracy.

Determination of Galactic Rotation Parameters and the Solar Galactocentric Distance Ro from 73 Masers