The JWST-PRIMAL archival survey - A JWST/NIRSpec reference sample for the physical properties and Lyman-α absorption and emission of ∼600 galaxies at z = 5.0 − 13.4

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Volume 693 (January 2025)

A&A, 693 (2025) A60

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Table 4.

Lyα absorption vs. emission statistics.

Redshift range	5.0 − 6.0	6.0 − 7.0	7.0 − 8.0	8.0 − 10.0	10.0 − 13.4
LAEs	36/354 ( $10_{- 1}^{+ 2} %$ $10^{+2}_{-1}\%$ )	12/169 ( $7_{- 2}^{+ 3} %$ $7^{+3}_{-2}\%$ )	7/103 ( $7_{- 2}^{+ 3} %$ $7^{+3}_{-2}\%$ )	1/46 (2%)	0/17 (0%)
Lyα exc.	46/354 ( $13_{- 2}^{+ 2} %$ $13^{+2}_{-2}\%$ )	17/169 ( $9_{- 2}^{+ 3} %$ $9^{+3}_{-2}\%$ )	6/103 ( $4_{- 1}^{+ 3} %$ $4^{+3}_{-1}\%$ )	2/46 (4%)	2/17 (6%)
IGM abs.	93/354 ( $26_{- 2}^{+ 3} %$ $26^{+3}_{-2}\%$ )	39/169 ( $17_{- 3}^{+ 3} %$ $17^{+3}_{-3}\%$ )	26/103 ( $22_{- 3}^{+ 5} %$ $22^{+5}_{-3}\%$ )	6/46 (7%)	7/17 (29%)

DLAs	179/318 ( $56_{- 3}^{+ 3} %$ $56^{+3}_{-3}\%$ )	101/157 ( $64_{- 4}^{+ 4} %$ $64^{+4}_{-4}\%$ )	64/96 ( $67_{- 5}^{+ 4} %$ $67^{+4}_{-5}\%$ )	37/45 ( $82_{- 7}^{+ 4} %$ $82^{+4}_{-7}\%$ )	8/17 ( $47_{- 11}^{+ 12} %$ $47^{+12}_{-11}\%$ )

Notes. Errorbars denote the 1σ confidence interval (c = 0.683) on the computed fraction derived from the formalism by Cameron (2011). DLA fractions are computed by excluding the strong LAEs from the sample at each redshift bin.

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