The MUSE Hubble Ultra Deep Field Survey - XIV. Evolution of the Lyα emitter fraction from z = 3 to z = 6

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Volume 638 (June 2020)

A&A, 638 (2020) A12

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Table 1.

Subsample criteria.

z range	Mean z	M₁₅₀₀ range (mag)	N₁₅₀₀(z_p, M₁₅₀₀)	EW(Lyα) cut (Å)
Subsamples for Fig. 7: X_LAE vs. z
2.91 < z ≤ 3.68	3.3	−21.75 ≤ M₁₅₀₀ ≤ −17.75 ^(a)	228	45 ^(b), 65
3.68 < z ≤ 4.44	4.1	−21.75 ≤ M₁₅₀₀ ≤ −17.75 ^(a)	119	45 ^(b), 65
4.44 < z ≤ 5.01	4.7	−21.75 ≤ M₁₅₀₀ ≤ −17.75 ^(a)	98	45 ^(b), 65
5.01 < z ≤ 6.12	5.6	−21.75 ≤ M₁₅₀₀ ≤ −17.75 ^(a)	89	45 ^(b), 65

Subsamples for Figs. 8, 11, and 12: X_LAE vs. z for comparison with previous work
2.91 < z ≤ 3.68	3.3	−20.25 ≤ M₁₅₀₀ ≤ −18.75	87	25, 55
3.68 < z ≤ 4.44	4.1	−20.25 ≤ M₁₅₀₀ ≤ −18.75	40	25, 55
4.44 < z ≤ 5.01	4.7	−20.25 ≤ M₁₅₀₀ ≤ −18.75	28	25, 55
5.01 < z ≤ 6.12	5.6	−20.25 ≤ M₁₅₀₀ ≤ −18.75	35	25, 55

Subsamples for Figs. 5 and 10: X_LAE vs. M₁₅₀₀
2.91 < z ≤ 3.68	3.3	−21.5 ≤ M₁₅₀₀ ≤ −20.0	31	25, 45, 65, 85
2.91 < z ≤ 3.68	3.3	−20.0 < M₁₅₀₀ ≤ −19.0	58	25, 45, 65, 85
2.91 < z ≤ 3.68	3.3	−19.0 < M₁₅₀₀ ≤ −18.0	106	45, 65, 85
2.91 < z ≤ 3.68	3.3	−18.0 < M₁₅₀₀ ≤ −17.0	197	85

Subsamples for Fig. 6: X_LAE and M₁₅₀₀ for comparison with previous work
2.91 < z ≤ 3.68	3.3	−21.5 ≤ M₁₅₀₀ ≤ −20.0	31	50
2.91 < z ≤ 3.68	3.3	−20.0 < M₁₅₀₀ ≤ −19.0	58	50
2.91 < z ≤ 3.68	3.3	−19.0 < M₁₅₀₀ ≤ −18.0	106	50
3.68 < z ≤ 4.44	4.1	−21.5 ≤ M₁₅₀₀ ≤ −20.0	8	50
3.68 < z ≤ 4.44	4.1	−20.0 < M₁₅₀₀ ≤ −19.0	23	50
3.68 < z ≤ 4.44	4.1	−19.0 < M₁₅₀₀ ≤ −18.0	56	50

Notes. Subsample criteria of redshift and M₁₅₀₀ for the continuum-selected parent sample. The mean redshift, sample size (N₁₅₀₀(z_p, M₁₅₀₀)), and EW(Lyα) cut are also shown. To increase the sample size used in Figs. 7, 8, 11, and 12, we combine the two highest redshift bins used to compute the UV magnitude and Lyα completeness.

^(a)

We also calculate X_LAE for the −21.75 ≤ M₁₅₀₀ ≤ −18.75 mag and −18.75 < M₁₅₀₀ ≤ −17.75 mag subsamples.

^(b)

The 45 Å EW(Lyα) cut is only applied to the −21.75 < M₁₅₀₀ ≤ −18.75 mag subsamples.

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