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Table 3.

Data of the optical observations.

Telescope (Instrument) Filter Binning Spatial scalea (″ pixel−1) Total exp. timeb (# × time) Field of viewc (′×′/kpc × kpc) SB limit (mag arcsec−2) Seeing (″)
CAHA2.2m Cousins R 2 × 2 1.04 3h 56m 12 × 12 27.5 1.59
(CAFOS) (71 × 200 s) 71 × 71

CAHA1.23m B, G, R 1 × 1 1.04 3h 38m 15 × 16 1.56
(DLR-MKIII) Photographicd (30B, 37G, 42R × 120 s)e 88 × 94

VST SDSS r 2 × 2 0.21 5h 10m 60 × 60 28.7 1.10
(OmegaCAM) (122 × 154 s) 350 × 350

Notes.

(a)

Spatial scale according to the binning used.

(b)

Total number of exposures × exposure time of each exposure.

(c)

The top value of each telescope is the field of view in square arcminutes; the bottom value is the field of view according to the distance to the galaxy (see Table 1).

(d)

CAHA1.23m images in photographic B and R filters were converted to SDSS g and r, respectively (see Sect. 2.4.2).

(e)

The subindex indicates the filter of each corresponding number of exposures. Regardless of the filter, each one has an exposure time of 120 s.

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