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

Formation and evolution of galaxies have been a central driving force in thestudies of galaxies and cosmology. Recent studies provided a global picture ofcosmic star formation history. However, what drives the evolution of starformation activities in galaxies has long been a matter of debate. The keyfactor of the star formation is the transition of hydrogen from atomic tomolecular state, since the star formation is associated with the molecularphase. This transition is also strongly coupled with chemical evolution,because dust grains, i.e., tiny solid particles of heavy elements, play acritical role in molecular formation. Therefore, a comprehensive understandingof neutral-molecular gas transition, star formation and chemical enrichment isnecessary to clarify the galaxy formation and evolution. Here we present theactivity of SKA-JP galaxy evolution sub-science working group (subSWG) Ouractivity is focused on three epochs: z \sim 0, 1, and z > 3. At z \sim 0, wetry to construct a unified picture of atomic and molecular hydrogen throughnearby galaxies in terms of metallicity and other various ISM properties. Up tointermediate redshifts z \sim 1, we explore scaling relations including gas andstar formation properties, like the main sequence and the Kennicutt-Schmidt lawof star forming galaxies. To connect the global studies with spatially-resolvedinvestigations, such relations will be plausibly a viable way. For highredshift objects, the absorption lines of HI 21-cm line will be a verypromising observable to explore the properties of gas in galaxies. By thesestudies, we will surely witness a real revolution in the studies of galaxies bySKA.

Formation, Evolution, and Revolution of Galaxies by SKA: Activities of SKA-Japan Galaxy Evolution Sub-SWG