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

ASTEP South is an Antarctic Search for Transiting Exo- Planets in the Southpole field, from the Concordia station, Dome C, Antarctica. The instrumentconsists of a thermalized 10 cm refractor observing a fixed 3.88\degree x3.88\degree field of view to perform photometry of several thousand stars atvisible wavelengths (700-900 nm). The first winter campaign in 2008 led to theretrieval of nearly 1600 hours of data. We derive the fraction of photometricnights by measuring the number of detectable stars in the field. The method issensitive to the presence of small cirrus clouds which are invisible to thenaked eye. The fraction of night-time for which at least 50% of the stars aredetected is 74% from June to September 2008. Most of the lost time (18.5% outof 26%) is due to periods of bad weather conditions lasting for a few days("white outs"). Extended periods of clear weather exist. For example, betweenJuly 10 and August 10, 2008, the total fraction of time (day+night) for whichphotometric observations were possible was 60%. This confirms the very highquality of Dome C for nearly continuous photometric observations during theAntarctic winter.

Photometric quality of Dome C for the winter 2008 from ASTEP South