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

We present a redshift z=6.535 galaxy discovered by its Lyman alpha emissionin a 9180A narrowband image from the Large Area Lyman Alpha (LALA) survey. TheLy-a line luminosity (1.1e43 erg/s) is among the largest known for star forminggalaxies at z=6.5. The line shows the distinct asymmetry that is characteristicof high-redshift Ly-a. The 2 sigma lower bound on the observer-frame equivalentwidth is > 530A. This is hard to reconcile with a neutral intergalactic mediumunless the Ly-a line is intrinsically strong and is emitted from its hostgalaxy with an intrinsic Doppler shift of several hundred km/s. If the IGM isionized, it corresponds to a rest frame equivalent width > 40A after correctingfor Ly-a forest absorption.  We also present complete spectroscopic followup of the remaining candidateswith line flux > 2e-17 erg/cm2/s in our 1200 square arcminute narrowband image.These include another galaxy with a strong emission line at 9136A and nodetected continuum flux, which however is most likely an [OIII] source atz=0.824 based on a weak detection of the [OIII] 4959A line.Comment: Revised version, accepted to The Astrophysical Journal, 22 April 2004  (original version submitted 27 February 2004

A Luminous Lyα‐emitting Galaxy at Redshiftz= 6.535: Discovery and Spectroscopic Confirmation