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

A narrowband imaging survey of 276 square minutes of arc was carried out atnear infrared wavelengths to search for emission line objects at highredshifts. Most of the fields contained a known quasar or radio galaxy at aredshift that placed one of the strong, restframe optical emission lines(H-alpha, [O III], H-beta, or [O II]) in the bandpass of the narrowband filter.The area weighted line flux limit over the entire survey was 3.4x10e-16erg/cm2/s (3-sigma), while the most sensitive limits reached 1.4x10e-16erg/cm2/s. Integrating the volume covered by all four optical emission lines ineach image yields a total comoving volume surveyed of 1.4x10e5 cubicmegaparsecs. Considering only H-alpha emission in the K band (2.05 < z < 2.65),where the survey is most sensitive, the survey covered a comoving volume of3.0x10e4 cubic megaparsecs to a volume-weighted average star formation rate of112 M-solar/yr (for Ho = 50 km/s/Mpc, Omega = 1). This is the most extensivenear-infrared survey which is deep enough to have a reasonable chance atdetecting strong line emission from an actively star-forming population ofgalaxies, when d against simple models of galaxy formation. One emission linecandidate was identified in this survey, and subsequently confirmedspectroscopically.Comment: To appear in the Astronomical Journal, November 1996. 23 pages,  including 2 tables and 7 figure

A Narrowband Imaging Survey for High Redshift Galaxies in the Near Infrared