A candidate quadruple AGN system at z ∼ 3 | Astronomy & Astrophysics (A&A)

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Table 1.

Quasar and AGN candidate properties and the distances between the candidates.

Object	RA (J2000) ^(a)	Dec (J2000) ^(a)	r [mag] ^(b)	z_CIII]	Δv to QSO1 [km s⁻¹]	Δd to QSO1 [″/kpc]
QSO1	10:12:54.74	+03:35:48.93	21.89 ± 0.10 ^(c)	3.1638 ± 0.0004	0	0/0
AGNc1	10:12:54.88	+03:35:49.22	24.36 ± 0.49	3.181 ± 0.008	–1590 ± 766	2.1/16
AGNc2	10:12:54.77	+03:35:46.36	24.74 ± 0.74	3.156 ± 0.001	761 ± 166	2.6/20
QSO2	10:12:51.07 ^(d)	+03:36:16.56 ^(d)	21.65 ± 0.09 ^(c)	3.150 ± 0.001	1347 ± 188	61.6/478

Notes.

^(a)

Coordinates determined from best-fitting Moffat model.

^(b)

Calculated in the MUSE data within an aperture diameter of 1.6″.

^(c)

SDSS magnitude within an aperture of 3″.

^(d)

Coordinate taken from SDSS.

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