2023A&A...676A..33H

Query : 2023A&A...676A..33H

2023A&A...676A..33H - Astronomy and Astrophysics, volume 676A33 (2023/8-1)

Radial velocities and stellar population properties of 56 MATLAS dwarf galaxies observed with MUSE.

HEESTERS N., MULLER O., MARLEAU F.R., DUC P.-A., SANCHEZ-JANSSEN R., POULAIN M., HABAS R., LIM S. and DURRELL P.R.

Abstract (from CDS):

Dwarf galaxies have been extensively studied in the Local Group, in nearby groups, and selected clusters, giving us a robust picture of their global stellar and dynamical properties, such as their circular velocity, stellar mass, surface brightness, age, and metallicity in particular locations in the Universe. Intense study of these properties has revealed correlations between them, called the scaling relations, including the well-known universal stellar mass-metallicity relation. However, since dwarfs play a role in a vast range of different environments, much can be learned about galaxy formation and evolution through extending the study of these objects to various locations. We present MUSE spectroscopy of a sample of 56 dwarf galaxies as a follow-up to the MATLAS survey in low- to moderate-density environments beyond the Local Volume. The dwarfs have stellar masses in the range of M*/M⊙ = 106.1-109.4 and show a distance range of D = 14-148 Mpc, the majority of which (75%) are located in the range targeted by the MATLAS survey (10-45 Mpc). We thus report a 75% success rate for the semi-automatic identification of dwarf galaxies (79% for dwarf ellipticals) in the MATLAS survey on the subsample presented here. Using pPXF full spectrum fitting, we determine their line-of-sight velocity and can match the majority of them with their massive host galaxy. Due to the observational setup of the MATLAS survey, the dwarfs are located in the vicinity of massive galaxies. Therefore, we are able to confirm their association through recessional velocity measurements. Close inspection of their spectra reveals that ∼30% show clear emission lines, and thus star formation activity. We estimate their stellar population properties (age and metallicity) and compare our results with other works investigating Local Volume and cluster dwarf galaxies. We find that the dwarf galaxies presented in this work show a systematic offset from the universal stellar mass-metallicity relation toward lower metallicities at the same stellar mass. A similar deviation is present in other works in the stellar mass range probed in this work and might be attributed to the use of different methodologies for deriving the metallicity.

Abstract Copyright: © The Authors 2023

Journal keyword(s): galaxies: dwarf - galaxies: stellar content - dark matter - cosmology: observations

Simbad objects: 92

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Number of rows : 92
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 LEDA 1117874 G 01 15 10.8 -01 28 18           ~ 5 0
3 NGC 448 EmG 01 15 16.5193587096 -01 37 34.484096784   13.2       ~ 112 0
4 MATLAS-15 G 01 15 49.8 -01 23 29           ~ 2 0
5 MATLAS-20 LSB 01 18 20.2 +03 26 00           ~ 6 0
6 NGC 474 GiP 01 20 06.6870520512 +03 24 55.861973100 12.75 12.37 11.51 11.42 10.56 ~ 371 1
7 MATLAS-29 G 01 20 35.2 +03 08 44           ~ 3 0
8 MATLAS-35 G 01 21 58.7 +03 58 16           ~ 4 0
9 MATLAS-205 G 02 49 18.4 -01 34 17           ~ 2 0
10 SDSS J025159.74-011028.9 G 02 51 59.7 -01 10 29           ~ 5 0
11 MATLAS-222 G 02 52 40.0 -01 09 36           ~ 2 0
12 MATLAS-223 G 02 52 43.0 -01 19 36           ~ 2 0
13 NGC 1253 Sy2 03 14 09.045 -02 49 22.62   11.8   11.19 11.5 ~ 112 0
14 MATLAS-269 G 03 14 25.1 -02 55 25           ~ 3 0
15 MATLAS-273 G 03 15 38.4 -02 57 03           ~ 2 0
16 NGC 1266 Sy1 03 16 00.7739640240 -02 25 37.827013584   14   12.46   ~ 332 2
17 MATLAS-290 G 03 18 02.6 -01 39 12           ~ 4 0
18 NGC 1289 GiG 03 18 49.7937804216 -01 58 23.745958356   13.8       ~ 74 0
19 MATLAS-300 G 03 19 48.5 -02 18 32           ~ 2 0
20 MATLAS-303 G 03 20 14.8 -01 42 46           ~ 2 0
21 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
22 MATLAS-313 G 04 46 31.5 -05 14 26           ~ 2 0
23 MATLAS-318 G 04 48 25.7 -03 52 24           ~ 3 0
24 MCG-01-13-011 EmG 04 48 34.3914276240 -03 52 01.495685820   14.3   13.35 13.6 ~ 56 0
25 MATLAS-320 G 04 49 40.1 -04 13 58           ~ 2 0
26 MATLAS-321 G 04 49 50.6 -03 35 38           ~ 2 0
27 MATLAS-323 G 04 50 27.2 -03 36 49           ~ 2 0
28 MATLAS-324 G 04 50 41.5 -03 49 46           ~ 2 0
29 MATLAS-420 G 08 53 26.4 -02 30 34           ~ 2 0
30 NGC 2695 GiG 08 54 27.0744277224 -03 04 00.993904032   13.3       ~ 115 0
31 MATLAS-428 G 08 54 40.5 -03 06 32           ~ 3 0
32 MATLAS-429 G 08 54 57.8 -02 56 20           ~ 2 0
33 NGC 2699 GiG 08 55 48.7851438216 -03 07 39.575588736   13.6       ~ 110 0
34 MATLAS-443 G 08 56 46.5 -03 15 09           ~ 3 0
35 MATLAS-444 G 08 56 50.2 -02 54 55           ~ 3 0
36 MATLAS-445 G 08 56 51.9 -03 15 38           ~ 3 0
37 MATLAS-448 G 08 57 06.2 -03 20 33           ~ 2 0
38 DELS 8000361164001713 G 09 40 29.4 +05 13 53           ~ 4 0
39 NGC 2962 GiP 09 40 53.9321546928 +05 09 57.032828496   13.1       ~ 210 0
40 MATLAS-553 G 09 41 41.3 -03 43 55           ~ 2 0
41 NGC 2974 Sy2 09 42 33.2918467632 -03 41 57.038311068   12.19   10.77   ~ 463 0
42 MATLAS-574 G 09 44 27.6 -03 18 17           ~ 2 0
43 MATLAS-578 G 09 44 50.4 +00 08 40           ~ 2 0
44 MATLAS-585 LSB 09 45 49.1 -00 32 49           ~ 5 0
45 IC 560 GiG 09 45 53.336 -00 16 08.84   14.6       ~ 66 0
46 MATLAS-642 G 10 12 32.9 +03 42 28           ~ 3 0
47 NGC 3156 GiG 10 12 41.2457368824 +03 07 45.701284764   12.8       ~ 241 0
48 MATLAS-645 LSB 10 13 23.2 +03 18 35           ~ 5 0
49 LEDA 29873 LSB 10 14 31.8 +03 22 01           ~ 7 0
50 MATLAS-829 G 10 56 56.1 +09 29 56           ~ 2 0
51 LEDA 135781 LSB 11 19 19.8 +02 47 30   18.9       ~ 4 0
52 NGC 3640 GiG 11 21 06.852 +03 14 05.15 11.89 11.36 10.44     ~ 291 3
53 NGC 3641 GiG 11 21 08.8111086864 +03 11 40.530956028   14.10 13.20     ~ 113 1
54 MATLAS-974 G 11 21 50.1 +02 56 43           ~ 2 0
55 MATLAS-992 G 11 22 53.6 +03 14 52           ~ 2 0
56 NGC 4215 GiG 12 15 54.5328986304 +06 24 04.120817832   13.0       ~ 133 0
57 LEDA 39345 G 12 16 42.561 +06 41 21.80           ~ 9 0
58 NGC 4255 GiG 12 18 56.1463134360 +04 47 10.064149440   13.5       ~ 108 0
59 LEDA 39614 LSB 12 19 02.7 +05 05 53           ~ 12 0
60 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
61 NGC 4546 Sy2 12 35 29.4931619736 -03 47 35.383858656 11.89 11.30 10.32     ~ 230 1
62 MATLAS-1393 G 12 39 37.2 -04 48 55           ~ 2 0
63 NGC 4602 Sy2 12 40 36.848 -05 07 58.84   12.34   11.40 11.8 ~ 156 0
64 LEDA 42498 G 12 40 50.986 +07 55 50.95   19       ~ 15 0
65 MATLAS-1408 LSB 12 41 11.2 -05 05 52           ~ 7 0
66 NGC 4623 GiG 12 42 10.6913697096 +07 40 37.130799216   13.24       ~ 210 1
67 LEDA 1073696 AG? 12 46 07.250 -03 16 08.91   17.852   16.886   ~ 11 0
68 LEDA 1090310 G 12 46 49.5 -02 30 02   18.046   17.469   ~ 5 0
69 MATLAS-1497 G 12 47 36.0 -01 39 03           ~ 2 0
70 NGC 4690 GiG 12 47 55.5227576592 -01 39 21.805729344   14.0       ~ 69 0
71 NGC 4691 Sy1 12 48 13.60 -03 19 57.7 11.59 11.66 11.08 11.8 11.3 ~ 263 2
72 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
73 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
74 NAME M101 Group GrG 14 03 +54.3           ~ 112 1
75 MATLAS-1781 G 14 11 12.0 -05 06 13           ~ 2 0
76 NGC 5493 GiG 14 11 29.3792026752 -05 02 36.999208608   13.5       ~ 110 0
77 NGC 5507 EmG 14 13 19.8600321120 -03 08 56.000082660   13.30 12.46     ~ 120 0
78 MATLAS-1793 G 14 13 38.7 -03 20 07           ~ 3 0
79 SDSS J150520.28+014846.6 LSB 15 05 20.28768 +01 48 46.6111       17.81   ~ 46 0
80 NGC 5839 GiG 15 05 27.4892848248 +01 38 05.284771152   13.9 12.19 11.67 10.72 ~ 113 0
81 NGC 5845 GiG 15 06 00.7823239488 +01 38 01.704838596   13.8 11.20 12.06 9.94 ~ 403 0
82 NGC 5846 rG 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 891 2
83 MATLAS-2086 LSB 15 07 27.8 +01 21 54       19.16   ~ 5 0
84 MATLAS-2088 GiG 15 07 35.4 +01 59 40       19.08   ~ 4 0
85 MATLAS-2091 LSB 15 08 02.8 +02 14 07       18.50   ~ 5 0
86 MATLAS-2094 G 15 53 14.8 +00 42 35           ~ 2 0
87 NGC 6010 AG? 15 54 19.1553713880 +00 32 34.949952168   13.3       ~ 94 0
88 MATLAS-2098 G 15 55 03.3 +00 27 59           ~ 2 0
89 MATLAS-2103 LSB 15 56 20.1 +06 11 18           ~ 6 0
90 NGC 6017 AG? 15 57 15.4406348832 +05 59 54.256163604   13.8       ~ 75 0
91 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 1164 0
92 NAME Local Group GrG ~ ~           ~ 9325 0

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