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

Gaia is a space mission currently measuring the five astrometric parametersas well as spectrophotometry of at least 1 billion stars to G = 20.7 mag withunprecedented precision. The sixth parameter in phase space (radial velocity)is also measured thanks to medium-resolution spectroscopy being obtained forthe 150 million brightest stars. During the commissioning phase, two fields,one around each ecliptic pole, have been repeatedly observed to assess and toimprove the overall satellite performances as well as the associated reductionand analysis software. A ground-based photometric and spectroscopic survey wastherefore initiated in 2007, and is still running in order to gather as muchinformation as possible about the stars in these fields. This work is ofparticular interest to the validation of the Radial Velocity Spectrometer (RVS)outputs. The paper presents the radial velocity measurements performed for theSouthern targets in the 12 - 17 R magnitude range on high- to mid-resolutionspectra obtained with the GIRAFFE and UVES spectrographs.

A test field for Gaia. Radial velocity catalogue of stars in the South Ecliptic Pole