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 done a statistical analysis of Very Long Baseline Array (VLBA) dataof water masers in the star-forming regions (SFRs) Cepheus A and W75 N, usingcorrelation functions to study the spatial clustering and Doppler-velocitydistribution of these masers. Two-point spatial correlation functions show acharacteristic scale size for clusters of water maser spots < or ~1 AU, similarto the values found in other SFRs. This suggests that the scale for water maserexcitation tends to be < or ~1 AU. Velocity correlation functions showpower-law dependences with indices that can be explained by regular velocityfields, such as expansion and/or rotation. These velocity fields are similar tothose indicated by the water maser proper-motion measurements; therefore, thevelocity correlation functions appear to reveal the organized motion of watermaser spots on scales larger than 1 AU.

Statistical Analysis of Water Masers in Star-Forming Regions: Cepheus A and W75 N