Tracing satellite planes in the Sculptor group - II. Discovery of five faint dwarf galaxies in the DESI Legacy Survey

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Volume 705 (January 2026)

A&A, 705 (2026) A77

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Table A.1.

Galaxies in $15 \overset{°}{.} 5$ $15{{\overset{\circ}{.}}}5$ neighborhood around NGC 253

Name	Type	V_h		V_LG		D_TRGB			Θ_N253	R_⊥	R_3D

		(km s⁻¹)				(Mpc)			(deg)	(kpc)
NGC 253	SABc	261	± 5	294	^a	3.70	$_{- 0.03}^{+ 0.03}$ $_{-0.03}^{+0.03}$	^†
Scl-MM-Dw2	dSph					3.53	$_{- 0.11}^{+ 0.12}$ $_{-0.11}^{+0.12}$	^‡	0.82	53	174
Scl-MM-Dw1	dSph					3.52	$_{- 0.50}^{+ 0.58}$ $_{-0.50}^{+0.58}$	^‡	1.10	71	195
Do II	dSph					3.47	$_{- 0.28}^{+ 0.15}$ $_{-0.28}^{+0.15}$	^‡	1.34	87	246
Scl-MM-Dw4	dSph					4.11	$_{- 0.33}^{+ 0.17}$ $_{-0.33}^{+0.17}$	^‡	1.42	92	424
Scl-MM-Dw5	dSph					3.89	$_{- 0.26}^{+ 0.18}$ $_{-0.26}^{+0.18}$	^‡	1.57	101	219
Do IX									1.88	122
LV J0055-2310	dIr	250	± 5	288	^a	3.62	$_{- 0.18}^{+ 0.19}$ $_{-0.18}^{+0.19}$	^♭	2.72	175	190
Do IV	dSph					3.94	$_{- 0.56}^{+ 0.65}$ $_{-0.56}^{+0.65}$	^♯	3.61	233	344
Do V									3.89	251
dw0036−2828	dIr					3.77	$_{- 0.33}^{+ 0.36}$ $_{-0.33}^{+0.36}$	^♯	4.02	260	271
DDO 6	dIr	291.8	± 1.6	344	^b	3.44	$_{- 0.15}^{+ 0.13}$ $_{-0.15}^{+0.13}$	^†	4.31	278	375
Do VI									4.39	283
NGC 247	SABd	153	± 5	208	^a	3.72	$_{- 0.03}^{+ 0.03}$ $_{-0.03}^{+0.03}$	^†	4.53	293	294
Do VII									4.74	306
Do VIII									5.00	323
Do III	dSph					3.37	$_{- 0.17}^{+ 0.18}$ $_{-0.17}^{+0.18}$	^♯	5.31	342	461
Sc 22	dSph					4.29	$_{- 0.06}^{+ 0.08}$ $_{-0.06}^{+0.08}$	^†	5.40	349	697
ESO 540-032	dIr	227.7	± 0.9	285	^c	3.63	$_{- 0.05}^{+ 0.05}$ $_{-0.05}^{+0.05}$	^†	5.42	350	353
KDG 2	dTr	224	± 3	290	^c	3.56	$_{- 0.07}^{+ 0.07}$ $_{-0.07}^{+0.07}$	^†	7.23	466	477
PGC 704814	dIr	270	± 89	299	^d	3.66	$_{- 0.16}^{+ 0.17}$ $_{-0.16}^{+0.17}$	^♭	12.39	798	795
ESO 349-031	dIr	220	± 5	229	^a	3.21	$_{- 0.06}^{+ 0.06}$ $_{-0.06}^{+0.06}$	^†	12.59	811	901
NGC 7793	SAd	224	± 5	247	^a	3.63	$_{- 0.13}^{+ 0.14}$ $_{-0.13}^{+0.14}$	^†	13.09	843	838
DDO 226	Ir	358.6	± 1.6	409	^b	4.92	$_{- 0.26}^{+ 0.30}$ $_{-0.26}^{+0.30}$	^†	3.21	207	1245
Sculptor SR	Tr					19		^♯	3.99	257
NGC 59	dEem	368	± 5	438	^a	4.90	$_{- 0.07}^{+ 0.07}$ $_{-0.07}^{+0.07}$	^†	8.32	537	1349
UGCA 442	SBm	267	± 5	299	^a	4.37	$_{- 0.16}^{+ 0.14}$ $_{-0.16}^{+0.14}$	^†	15.48	996	1271

The columns: (1) galaxy name; (2) morphological type according to the HyperLeda (Makarov et al. 2014) and the Local Volume (Kaisina et al. 2012) databases; (3) V_h — heliocentric velocity in km s⁻¹ with its error; (4) V_LG — radial velocity with respect to the LG centroid (Karachentsev & Makarov 1996); (5) D_TRGB — TRGB–distance in Mpc with a corresponding error; (6) Θ_N253 — angular separation from NGC 253 in degrees; (7) R_⊥ and (8) R_3D — projected and spatial distances to NGC 253 in kpc, correspondingly. Velocity references:

Westmeier et al. (2017),

Begum et al. (2008),

Bouchard et al. (2005),

Colless et al. (2003). TRGB distance references:

^†

Anand et al. (2021),

^‡

Mutlu-Pakdil et al. (2022),

^♭

Karachentsev et al. (2021),

^♯

Mutlu-Pakdil et al. (2024).

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