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Johnjbarton (talk | contribs) →Highest redshifts: Add a reference to this claim. Note: date is 2024 and no citations. Nature peer review and team authors. |
Johnjbarton (talk | contribs) →Highest redshifts: citations needed. Too much focus on Guiness Record keeping, not enough on encyclopedia. |
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[[File:Comoving distance and lookback time (Planck 2018).png|thumb|upright=1.8|[[Comoving and proper distances|Comoving distance]] and [[lookback time]] for the Planck 2018 cosmology parameters, from redshift 0 to 15, with distance (blue solid line) on the left axis, and time (orange dashed line) on the right. Note that the time that has passed (in giga years) from a given redshift until now is not the same as the distance (in giga light years) light would have traveled from that redshift, due to the expansion of space over the intervening period.]]
Currently, the objects with the highest known redshifts are galaxies and the objects producing gamma ray bursts.{{cn}} The most reliable redshifts are from [[spectroscopic]] data,{{cn}} and the highest-confirmed spectroscopic redshift of a galaxy is that of [[JADES-GS-z14-0]] with a redshift of {{math|''z'' {{=}} 14.32}}, corresponding to 290 million years after the Big Bang.<ref>{{Cite journal |last=Carniani |first=Stefano |last2=Hainline |first2=Kevin |last3=D’Eugenio |first3=Francesco |last4=Eisenstein |first4=Daniel J. |last5=Jakobsen |first5=Peter |last6=Witstok |first6=Joris |last7=Johnson |first7=Benjamin D. |last8=Chevallard |first8=Jacopo |last9=Maiolino |first9=Roberto |last10=Helton |first10=Jakob M. |last11=Willott |first11=Chris |last12=Robertson |first12=Brant |last13=Alberts |first13=Stacey |last14=Arribas |first14=Santiago |last15=Baker |first15=William M. |date=2024-07-29 |title=Spectroscopic confirmation of two luminous galaxies at a redshift of 14 |url=https://www.nature.com/articles/s41586-024-07860-9 |journal=Nature |language=en |pages=1–3 |doi=10.1038/s41586-024-07860-9 |issn=1476-4687}}</ref> The previous record was held by [[GN-z11]],<ref>{{cite journal
| title=A Remarkably Luminous Galaxy at z=11.1 Measured with Hubble Space Telescope Grism Spectroscopy
| last1=Oesch | first1=P. A. | last2=Brammer | first2=G.
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