2022MNRAS.516.1741K

Query : 2022MNRAS.516.1741K

2022MNRAS.516.1741K - Mon. Not. R. Astron. Soc., 516, 1741-1751 (2022/October-3)

H I properties of satellite galaxies around local volume hosts.

KARUNAKARAN A., SPEKKENS K., CARROLL R., SAND D.J., BENNET P., CRNOJEVIC D., JONES M.G. and MUTLU-PAKDIL B.

Abstract (from CDS):

We present neutral atomic hydrogen (H I) observations using the Robert C. Byrd Green Bank Telescope along the lines of sight to 49 confirmed or possible dwarf satellite galaxies around eight Local Volume systems (M104, M51, NGC 1023, NGC 1156, NGC 2903, NGC 4258, NGC 4565, and NGC 4631). We detect the H I reservoirs of two candidates (dw0934+2204 and dw1238-1122) and find them to be background sources relative to their nearest foreground host systems. The remaining 47 satellite candidates are not detected in H I, and we place stringent 5σ upper limits on their H I mass. We note that some (15/47) of our non-detections stem from satellites being occluded by their putative host's H I emission. In addition to these new observations, we compile literature estimates on the H I mass for an additional 17 satellites. We compare the H I properties of these satellites to those within the Local Group, finding broad agreement between them. Crucially, these observations probe a 'transition' region between -10 ≳ MV ≳ -14 where we see a mixture of gas-rich and gas-poor satellites. While there are many gas-poor satellites within this region, some are gas-rich and this suggests that the transition towards predominantly gas-rich satellites occurs at LV ∼ 107L⊙, in line with simulations. The observations presented here are a key step toward characterizing the properties of dwarf satellite galaxies around Local Volume systems and future wide-field radio surveys with higher angular resolution (e.g. WALLABY) will vastly improve upon the study of such systems.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): galaxies: dwarf - galaxies: evolution - Local Group - radio lines: galaxies

Simbad objects: 76

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Number of rows : 76
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 [CGB2020] dw0233+3852 G 02 33 42.7 +38 52 20           ~ 3 0
3 [CGB2020] dw0235+3850 G 02 35 54.2 +38 50 10           ~ 3 0
4 IC 239 GiG 02 36 27.8262034392 +38 58 09.083372052   12.1   12.75   ~ 115 0
5 LEDA 2802360 G 02 37 18.6 +38 55 59       14.92   ~ 6 0
6 [CGB2020] dw0237+3836 G 02 37 39.5 +38 36 01       18.39   ~ 4 0
7 [CGB2020] dw0238+3805 G? 02 38 41.00 +38 05 06.5           ~ 2 0
8 MATLAS-189 LSB 02 39 19.8 +39 26 02       18.90   ~ 6 0
9 MATLAS-191 GiG 02 39 47.0 +39 02 50           ~ 6 0
10 NGC 1023 AG? 02 40 24.0133575864 +39 03 47.663392896 10.91 10.35 9.35 7.83   ~ 689 2
11 Z 523-84 GiG 02 40 25.123 +38 33 48.02   14.9   13.99   ~ 27 0
12 NGC 1023D GiG 02 40 32.99 +38 54 00.9       16.51   ~ 18 0
13 NGC 1023A GiG 02 40 37.1 +39 03 33       14.52   ~ 52 1
14 NGC 1023C GiG 02 40 39.59 +39 22 47.2       16.31   ~ 14 0
15 NGC 1023B AG? 02 41 00.00 +39 04 19.0       16.35   ~ 12 0
16 MCG+06-06-074 GiG 02 41 15.50 +38 44 36.0   16.0   13.70   ~ 14 0
17 [CGB2020] dw0241+3829 G? 02 41 54.20 +38 29 53.6           ~ 2 0
18 [CGB2020] dw0243+3915 G? 02 43 55.00 +39 15 20.7           ~ 2 0
19 NGC 1156 GiG 02 59 42.8528847264 +25 14 28.352017320 12.13 12.32 11.74     ~ 323 1
20 [CGB2020] dw0300+2514 LSB 03 00 18.2 +25 14 56   19.6       ~ 7 0
21 [CGB2020] dw0301+2446 G? 03 01 32.20 +24 46 59.4           ~ 2 0
22 SDSS J093039.96+214324.7 G 09 30 39.956 +21 43 24.73           ~ 15 0
23 NGC 2903 AGN 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1204 3
24 UGC 5086 LSB 09 32 48.815 +21 27 56.25   18       ~ 43 0
25 [CGB2020] dw0934+2204 G? 09 34 22.00 +22 04 53.9           ~ 2 0
26 NGC 4248 GiG 12 17 49.8429850848 +47 24 33.085192824   13.12 12.53     ~ 129 1
27 LEDA 4320422 LSB 12 18 11.07 +46 55 00.7           ~ 26 1
28 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
29 SDSS J121906.49+474348.8 LSB 12 19 06.493 +47 43 48.87     17.5   17.2 ~ 20 0
30 MCG+08-22-105 LSB 12 19 09.0802283352 +47 05 23.244084960   17       ~ 62 0
31 SMDG J1220144+492251 LSB 12 20 14.40 +49 22 51.6           ~ 5 0
32 SDSS J122054.98+464950.4 G 12 20 54.987 +46 49 50.41           ~ 10 0
33 LEDA 2832112 G 12 23 46.2 +47 39 32           ~ 14 0
34 [CGB2020] dw1233+2535 G? 12 33 11.00 +25 35 55.2           ~ 2 0
35 [CGB2020] dw1233+2543 G? 12 33 18.40 +25 43 35.1           ~ 2 0
36 SDSS J123424.15+253120.2 AG? 12 34 24.1578123144 +25 31 20.236932156           ~ 5 0
37 [CGB2020] dw1234+2618 G 12 34 57.60 +26 18 50.8           ~ 3 0
38 [CGB2020] dw1235+2616 G? 12 35 22.30 +26 16 14.2           ~ 2 0
39 NGC 4562 GiG 12 35 34.5672266616 +25 50 58.387185060   14.6       ~ 95 0
40 IC 3571 AG? 12 36 19.991 +26 05 01.58           ~ 30 0
41 NGC 4565 Sy2 12 36 20.804 +25 59 14.61   13.61 12.43     ~ 991 0
42 [CGB2020] dw1236+2634 G? 12 36 58.60 +26 34 42.8           ~ 2 0
43 SDSSCGB 34318.1 G 12 37 01.2193050168 +26 02 08.453080680           ~ 5 0
44 [CGB2020] dw1237-1125 G 12 37 11.6 -11 26 00           ~ 4 0
45 [CGB2020] dw1237+2605 G? 12 37 26.80 +26 05 08.7           ~ 2 0
46 SMDG J1237428+263727 G 12 37 42.7954 +26 37 27.322           ~ 4 0
47 [CGB2020] dw1238-1122 G? 12 38 33.70 -11 22 05.1           ~ 2 0
48 SMDG J1239050+323016 LSB 12 39 05.1 +32 30 17           ~ 8 0
49 [CGB2020] dw1239-1159 G 12 39 09.0 -11 59 12           ~ 4 0
50 [C83] NGC 4594 DW1 G 12 39 15.36 -11 43 11.4   17.18 16.56     ~ 9 0
51 [CGB2020] dw1239+3251 G 12 39 19.6 +32 51 39           ~ 3 0
52 [CGB2020] dw1239-1113 LSB 12 39 32.8 -11 13 36           ~ 8 0
53 [CGB2020] dw1239-1120 LSB 12 39 51.5 -11 20 29           ~ 7 0
54 LEDA 3097710 LSB 12 39 54.9 -11 44 46           ~ 20 0
55 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1465 2
56 LEDA 42428 G 12 40 09.4 -11 18 50           ~ 9 0
57 [CGB2020] dw1240-1140 G 12 40 17.6 -11 40 45           ~ 4 0
58 SMDG J1240530+321655 LSB 12 40 53.0 +32 16 56           ~ 13 0
59 [CGB2020] dw1240+3247 G 12 40 58.5 +32 47 25   16.1       ~ 7 0
60 [CGB2020] dw1241-1131 G 12 41 02.8 -11 31 44           ~ 4 0
61 WISEA J124112.02-115329.9 G 12 41 12.0 -11 53 30           ~ 6 0
62 LEDA 3097712 G 12 41 18.7 -11 55 31           ~ 17 0
63 CAIRNS J124147.13+325124.9 GiC 12 41 47.300 +32 51 28.54           ~ 23 0
64 NGC 4627 GiG 12 41 59.9679553813 +32 34 24.810713707 13.16 13.06 12.43     ~ 156 1
65 [CGB2020] dw1242+3237 G 12 42 06.10 +32 37 14.8   18.5       ~ 8 0
66 NGC 4631 GiC 12 42 08.009 +32 32 29.44   9.78 9.19 9.10   ~ 1154 3
67 SMDG J1242314+315809 LSB 12 42 31.4 +31 58 09           ~ 13 0
68 [CGB2020] dw1242-1116 G? 12 42 43.80 -11 16 26.0           ~ 2 0
69 SDSS J124324.90+322854.2 AG? 12 43 24.900 +32 28 54.27           ~ 16 0
70 NGC 4656 GiP 12 43 57.6889089768 +32 10 13.345914504   10.96 10.52     ~ 385 3
71 MATLAS-1534 LSB 13 28 24.7 +47 03 55           ~ 8 0
72 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
73 NGC 5195 GiG 13 29 59.590 +47 15 58.06 10.76 10.45 9.55 9.31   ~ 816 3
74 [CGB2020] dw1330+4731 G? 13 30 33.90 +47 31 33.1           ~ 2 0
75 NGC 5229 LSB 13 34 02.831 +47 54 55.68   14.6       ~ 149 0
76 NAME Local Group GrG ~ ~           ~ 9325 0

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