There&#x27;s another good article on this at the Keck Observatory site [1] and it has a great graphic [2].<p>The site of the &quot;<i>Astrophysical Journal Letters</i>&quot; journal (iop.org) has a public abstract&#x2F;article for mentioned paper, &quot;<i>Lyα EMISSION FROM A LUMINOUS z = 8.68 GALAXY: IMPLICATIONS FOR GALAXIES AS TRACERS OF COSMIC REIONIZATION</i>&quot; [3], but the paper itself seems to be paywalled [4].<p>[1]
<a href="http:&#x2F;&#x2F;www.keckobservatory.org&#x2F;recent&#x2F;entry&#x2F;new_record_keck_observatory_confirms_most_distant_galaxy" rel="nofollow">http:&#x2F;&#x2F;www.keckobservatory.org&#x2F;recent&#x2F;entry&#x2F;new_record_keck_...</a><p>[2] 
<a href="http:&#x2F;&#x2F;www.keckobservatory.org&#x2F;images&#x2F;press_images&#x2F;Adi3.001.jpg" rel="nofollow">http:&#x2F;&#x2F;www.keckobservatory.org&#x2F;images&#x2F;press_images&#x2F;Adi3.001....</a><p>[3]
<a href="http:&#x2F;&#x2F;iopscience.iop.org&#x2F;2041-8205&#x2F;810&#x2F;1&#x2F;L12&#x2F;article" rel="nofollow">http:&#x2F;&#x2F;iopscience.iop.org&#x2F;2041-8205&#x2F;810&#x2F;1&#x2F;L12&#x2F;article</a><p>[4]
<a href="http:&#x2F;&#x2F;iopscience.iop.org&#x2F;2041-8205&#x2F;810&#x2F;1&#x2F;L12&#x2F;pdf&#x2F;2041-8205_810_1_L12.pdf" rel="nofollow">http:&#x2F;&#x2F;iopscience.iop.org&#x2F;2041-8205&#x2F;810&#x2F;1&#x2F;L12&#x2F;pdf&#x2F;2041-8205_...</a>