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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Recent far-UV (FUV) and near-UV (NUV) observations of the nearby galaxyNGC4625 made by the Galaxy Evolution Explorer (GALEX) show the presence of anextended UV disk reaching 4 times the optical radius of the galaxy. TheUV-to-optical colors suggest that the bulk of the stars in the disk of NGC4625are currently being formed, providing a unique opportunity to study today thephysics of star formation under conditions similar to those when the normaldisks of spiral galaxies like the Milky Way first formed. In the case ofNGC4625, the star formation in the extended disk is likely to be triggered byinteraction with NGC4618 and possibly also with the newly discovered galaxyNGC4625A. The positions of the FUV complexes in the extended disk coincide withpeaks in the H I distribution. The masses of these complexes are in the range10^3-10^4 Msun with their Halpha emission (when present) being dominated byionization from single stars.Comment: 12 pages, 4 figures, accepted for publication in ApJ

Discovery of an Extended Ultraviolet Disk in the Nearby Galaxy NGC 4625