Euclid Quick Data Release (Q1) - XXIV. Extending the quest for little red dots to z < 4

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Volume 711 (July 2026)

A&A, 711 (2026) A24

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Euclid Quick Data Release (Q1)

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Table 6.

UV luminosity function of LRD candidates.

M_UV	0.6 ≤ z < 1.0	1.0 ≤ z < 1.5	1.5 ≤ z < 2.0	2.0 ≤ z < 2.5	2.5 ≤ z < 4.0
−22.75	$- 7 . 18_{- 0.57}^{+ 1.01}$ $Mathematical equation: $ -7.18 _{- 0.57 }^{+ 1.01 } $$
−22.25				$- 7 . 95_{- 0.57}^{+ 1.03}$ $Mathematical equation: $ -7.95 _{- 0.57 }^{+ 1.03 } $$	$- 7 . 45_{- 0.57}^{+ 1.1}$ $Mathematical equation: $ -7.45 _{- 0.57 }^{+ 1.1 } $$
−21.75		$- 7 . 82_{- 0.40}^{+ 2.22}$ $Mathematical equation: $ -7.82 _{- 0.40 }^{+ 2.22 } $$	$- 7 . 06_{- 0.19}^{+ 0.47}$ $Mathematical equation: $ -7.06 _{- 0.19 }^{+ 0.47 } $$	$- 7 . 52_{- 0.25}^{+ 1.23}$ $Mathematical equation: $ -7.52 _{- 0.25 }^{+ 1.23 } $$
−21.25		$- 7 . 52_{- 0.38}^{+ 1.61}$ $Mathematical equation: $ -7.52 _{- 0.38 }^{+ 1.61 } $$	$- 6 . 61_{- 0.11}^{+ 0.34}$ $Mathematical equation: $ -6.61 _{- 0.11 }^{+ 0.34 } $$	$- 6 . 94_{- 0.22}^{+ 0.24}$ $Mathematical equation: $ -6.94 _{- 0.22 }^{+ 0.24 } $$	$- 7 . 35_{- 0.45}^{+ 0.51}$ $Mathematical equation: $ -7.35 _{- 0.45 }^{+ 0.51 } $$
−20.75			$- 6 . 45_{- 0.15}^{+ 0.39}$ $Mathematical equation: $ -6.45 _{- 0.15 }^{+ 0.39 } $$	$- 6 . 80_{- 0.12}^{+ 0.4}$ $Mathematical equation: $ -6.80 _{- 0.12 }^{+ 0.4 } $$	$- 8 . 34_{- 0.57}^{+ 1.19}$ $Mathematical equation: $ -8.34 _{- 0.57 }^{+ 1.19 } $$
−20.25		$- 7 . 39_{- 1.66}^{+ 4.01}$ $Mathematical equation: $ -7.39 _{- 1.66 }^{+ 4.01 } $$	$- 5 . 83_{- 0.20}^{+ 0.35}$ $Mathematical equation: $ -5.83 _{- 0.20 }^{+ 0.35 } $$	$- 6 . 15_{- 0.10}^{+ 0.32}$ $Mathematical equation: $ -6.15 _{- 0.10 }^{+ 0.32 } $$	$- 8 . 03_{- 0.57}^{+ 1.40}$ $Mathematical equation: $ -8.03 _{- 0.57 }^{+ 1.40 } $$
−19.75		$- 6 . 55_{- 0.80}^{+ 1.33}$ $Mathematical equation: $ -6.55 _{- 0.80 }^{+ 1.33 } $$	$- 5 . 33_{- 0.14}^{+ 0.21}$ $Mathematical equation: $ -5.33 _{- 0.14 }^{+ 0.21 } $$	$- 5 . 77_{- 0.04}^{+ 0.13}$ $Mathematical equation: $ -5.77 _{- 0.04 }^{+ 0.13 } $$	$- 6 . 11_{- 0.52}^{+ 0.58}$ $Mathematical equation: $ -6.11 _{- 0.52 }^{+ 0.58 } $$
−19.25		$- 5 . 67_{- 0.07}^{+ 0.07}$ $Mathematical equation: $ -5.67 _{- 0.07 }^{+ 0.07 } $$	$- 5 . 01_{- 0.06}^{+ 0.02}$ $Mathematical equation: $ -5.01 _{- 0.06 }^{+ 0.02 } $$	$- 5 . 72_{- 0.06}^{+ 0.10}$ $Mathematical equation: $ -5.72 _{- 0.06 }^{+ 0.10 } $$
−18.75		$- 5 . 32_{- 0.23}^{+ 0.19}$ $Mathematical equation: $ -5.32 _{- 0.23 }^{+ 0.19 } $$	$- 5 . 02_{- 0.14}^{+ 0.11}$ $Mathematical equation: $ -5.02 _{- 0.14 }^{+ 0.11 } $$	$- 5 . 92_{- 0.11}^{+ 0.29}$ $Mathematical equation: $ -5.92 _{- 0.11 }^{+ 0.29 } $$
−18.25		$- 5 . 55_{- 0.18}^{+ 0.12}$ $Mathematical equation: $ -5.55 _{- 0.18 }^{+ 0.12 } $$	$- 5 . 33_{- 0.14}^{+ 0.09}$ $Mathematical equation: $ -5.33 _{- 0.14 }^{+ 0.09 } $$	$- 7 . 32_{- 1.28}^{+ 2.94}$ $Mathematical equation: $ -7.32 _{- 1.28 }^{+ 2.94 } $$
−17.75		$- 5 . 88_{- 0.15}^{+ 0.07}$ $Mathematical equation: $ -5.88 _{- 0.15 }^{+ 0.07 } $$	$- 6 . 12_{- 0.25}^{+ 0.45}$ $Mathematical equation: $ -6.12 _{- 0.25 }^{+ 0.45 } $$
−17.25		$- 6 . 60_{- 0.27}^{+ 0.77}$ $Mathematical equation: $ -6.60 _{- 0.27 }^{+ 0.77 } $$	$- 6 . 98_{- 1.35}^{+ 2.39}$ $Mathematical equation: $ -6.98 _{- 1.35 }^{+ 2.39 } $$
−16.75		$- 7 . 15_{- 0.59}^{+ 1.77}$ $Mathematical equation: $ -7.15 _{- 0.59 }^{+ 1.77 } $$
−16.25	$- 7 . 18_{- 0.57}^{+ 1.07}$ $Mathematical equation: $ -7.18 _{- 0.57 }^{+ 1.07 } $$

Notes. The first column shows the central value of the UV absolute magnitude bins, which are 0.5 mag wide. The other columns show the logarithm of the number density in Mpc⁻³ mag⁻¹ in different redshift bins, reported in the first row.

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