Evidence item

The spectroscopy detected multiple metal-ion phases in three very high-redshift galaxies and the authors interpret their shared blueshifted structure as disturbed galaxy-associated gas. MEASUREMENT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 16367

Source: Early metal-enriched baryon cycling before the midpoint of cosmic reionization · locator {} · excerpt hash sha256:bf63dbd096e53626fa13e79ad6f77aa408381b0ab8bde770fbd6aa96c1878875

Using JWST/NIRSpec rest-frame ultraviolet spectroscopy from SPURS, we detect blueshifted metal absorption in three galaxies at 7.2 < z < 9.3. The ionic coexistence, overlapping velocity structure and equivalent-width ratios are consistent with outflowing or otherwise kinematically disturbed galaxy-associated gas.