2021ApJ...913...53P


Query : 2021ApJ...913...53P

2021ApJ...913...53P - Astrophys. J., 913, 53-53 (2021/May-3)

The gas content and stripping of Local Group dwarf galaxies.

PUTMAN M.E., ZHENG Y., PRICE-WHELAN A.M., GRCEVICH J., JOHNSON A.C., TOLLERUD E. and PEEK J.E.G.

Abstract (from CDS):

The gas content of the complete compilation of Local Group dwarf galaxies (119 within 2 Mpc) is presented using H I survey data. Within the virial radius of the Milky Way (224 kpc here), 53 of 55 dwarf galaxies are devoid of gas to limits of M_H I_ < 104 M. Within the virial radius of M31 (266 kpc), 27 of 30 dwarf galaxies are devoid of gas (with limits typically <105 M). Beyond the virial radii of the Milky Way and M31, the majority of the dwarf galaxies have detected H I gas and H I masses higher than the limits. When the relationship between gas content and distance is investigated using a Local Group virial radius, more of the nondetected dwarf galaxies are within this radius (85 ± 1 of the 93 nondetected dwarf galaxies) than within the virial radii of the Milky Way and M31. Using the Gaia proper-motion measurements available for 38 dwarf galaxies, the minimum gas density required to completely strip them of gas is calculated. Halo densities between 10–5 and 5 x 10–4 cm–3 are typically required for instantaneous stripping at perigalacticon. When compared to halo density with radius expectations from simulations and observations, 80% of the dwarf galaxies with proper motions are consistent with being stripped by ram pressure at Milky Way pericenter. The results suggest that a diffuse gaseous galactic halo medium is important in quenching dwarf galaxies, and that a Local Group medium also potentially plays a role.

Abstract Copyright: © 2021. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Local Group - Dwarf galaxies - Galaxy quenching - Circumgalactic medium - Interstellar medium - Intergalactic medium - Andromeda Galaxy - Milky Way Galaxy

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 123

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Number of rows : 123
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME WLM Galaxy G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 603 2
2 NAME Andromeda XVIII G 00 02 14.5 +45 05 20     16.0     ~ 106 0
3 NAME Tuc IV G 00 02.9 -60 51           ~ 47 0
4 NAME Andromeda XX G 00 07 30.70 +35 07 56.4     18.2     ~ 62 0
5 ESO 410-5 LSB 00 15 31.45 -32 10 47.3   15.32 14.9 14.58   ~ 94 1
6 And XIX G 00 19 32.10 +35 02 37.1     15.6     ~ 122 0
7 IC 10 G 00 20 23.16 +59 17 34.7   13.6 9.5     ~ 1039 0
8 NAME Andromeda XXVI G 00 23 45.6 +47 54 58     17.3     ~ 62 0
9 NAME Cetus Dwarf Galaxy G 00 26 10.8 -11 03 14     13.2     ~ 213 0
10 NAME Andromeda XXV G 00 30 08.9 +46 51 07     14.8     ~ 96 0
11 NGC 147 GiG 00 33 12.120 +48 30 31.46   12.0 9.5     ~ 638 1
12 NAME Andromeda III G 00 35 22.7 +36 30 17     14.4     ~ 280 0
13 NAME Cassiopeia III G 00 35 59.4 +51 33 35           ~ 41 0
14 NAME Andromeda XXX G 00 36 34.90 +49 38 48.0           ~ 46 0
15 NAME Andromeda XVII G 00 37 07.0 +44 19 20     15.8     ~ 85 0
16 NAME Andromeda XXVII G 00 37 27.1 +45 23 13     16.7     ~ 66 0
17 NGC 185 Sy2 00 38 57.970 +48 20 14.56   9.10 9.2     ~ 747 1
18 M 110 GiG 00 40 22.0544552438 +41 41 07.496294862   8.92 8.07     ~ 1239 1
19 M 32 IG 00 42 41.825 +40 51 54.61 9.51 9.03 8.08     ~ 2049 2
20 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11445 1
21 NAME Andromeda I G 00 45 39.8 +38 02 28   13.9 12.7     ~ 316 0
22 NAME Andromeda XI G 00 46 20.0 +33 48 05     17.5     ~ 108 0
23 NAME Andromeda XII G 00 47 27.0 +34 22 29     18.3     ~ 110 0
24 NAME Andromeda XIV G 00 51 35.0 +29 41 49     15.9     ~ 113 0
25 NAME Andromeda XIII G 00 51 51.0 +33 00 16     18.1     ~ 111 0
26 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9907 1
27 NAME Andromeda IX G 00 52 53.0 +43 11 45     16.3     ~ 155 1
28 NAME Pisces V G 00 59 29.8 +32 22 36     14.4     ~ 117 0
29 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1193 4
30 NAME Pisces I G 01 03 56.6 +21 53 41   16.18 14.3     ~ 368 0
31 IC 1613 GiC 01 04 54.2 +02 08 00   10.42 10.01 9.77   ~ 1140 2
32 NAME Andromeda X G 01 06 33.70 +44 48 15.8     16.6     ~ 107 1
33 NAME Andromeda V G 01 10 17.1 +47 37 41     15.3     ~ 195 0
34 NAME Andromeda XV G 01 14 18.7 +38 07 03     14.6     ~ 100 0
35 NAME Andromeda II G 01 16 29.8 +33 25 09     11.7     ~ 356 0
36 NAME Cetus II G 01 17.9 -17 25           ~ 28 0
37 NAME Andromeda XXIV G 01 18 30.0 +46 21 58     16.3     ~ 51 0
38 NAME Andromeda XXII G 01 27 40.0 +28 05 25     18.0     ~ 74 0
39 NAME Andromeda XXIII G 01 29 21.8 +38 43 08     14.2     ~ 70 0
40 NAME Phoenix Dwarf Galaxy Sy1 01 51 06.3 -44 26 41   13.48 13.2 12.69   ~ 485 2
41 NAME Cetus III Dwarf Galaxy G? 02 05 19 -04 16.2           ~ 13 0
42 NAME Tri II G 02 13 17.40 +36 10 42.4           ~ 87 0
43 NAME Segue 2 G 02 19 16.0 +20 10 31     15.2     ~ 210 0
44 NAME Eri III G 02 22 45.480 -52 17 04.92           ~ 48 0
45 DES J0225+0304 G? 02 25 42.40 +03 04 10.1           ~ 13 0
46 NAME Hydrus I G 02 29 33.4 -79 18 32           ~ 32 0
47 NAME Fornax Dwarf Spheroidal G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1562 1
48 NAME Hor I G 02 55 31.7 -54 07 08           ~ 99 0
49 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6022 1
50 NAME Andromeda XXXIII G 03 01 23.6 +40 59 18           ~ 30 0
51 NAME Horologium II G 03 16 32.1 -50 01 05           ~ 40 0
52 NAME Reticulum II G 03 35 42.1 -54 02 57           ~ 222 0
53 NAME Eridanus II G 03 44 21.1 -43 32 00           ~ 119 0
54 NAME Reticulum III G 03 45.4 -60 27           ~ 35 0
55 NAME Pic I G 04 43 47.4 -50 16 59           ~ 40 0
56 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15534 1
57 NAME Col I G 05 31.4 -28 02           ~ 32 0
58 NAME Carina dSph G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1037 0
59 NAME Pic II G 06 44 43 -59 53.8           ~ 18 0
60 NVSS J070023-041255 GiP 07 00 23.33 -04 12 55.1           ~ 5 0
61 LEDA 2807061 G 07 00 29.3 -04 12 30           ~ 36 1
62 NAME Carina II Dwarf Galaxy G 07 36 25.6 -57 59 57           ~ 40 0
63 NAME Car III Dwarf Galaxy G 07 38 31.2 -57 53 59           ~ 35 0
64 NAME UMa II Galaxy G 08 51 30.0 +63 07 48     13.3     ~ 332 0
65 UGC 4879 G 09 16 02.0197873600 +52 50 42.052874443   14.0 13.2     ~ 110 0
66 NAME Leo T G 09 34 53.4 +17 03 05     15.1     ~ 330 0
67 NAME Antlia II Dwarf Galaxy G 09 35 32.8 -36 46 02           ~ 27 0
68 NAME Antlia B G 09 48 56.08 -25 59 24.0           ~ 18 0
69 NAME Leo Dwarf Irregular Galaxy G 09 59 26.46 +30 44 47.0 14.08 13.54 13.26 13.33   ~ 563 0
70 NAME Sextans B H2G 10 00 00.8201300945 +05 20 09.572530884 12.77 12.25 11.89 11.71   ~ 485 0
71 NGC 3109 G 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 711 2
72 NAME Antlia Dwarf Galaxy G 10 04 03.9 -27 20 01 16.73 15.69 15.17 15.00   ~ 200 1
73 NAME Segue 1 G 10 07 03.2 +16 04 25     15.3     ~ 386 1
74 NAME Leo I dSph G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1100 1
75 NAME Sex A H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 674 2
76 NAME Dwarf Elliptical Galaxy in Sex G 10 13 02.9 -01 36 53   12 10.4     ~ 753 0
77 NAME Leo P BiC 10 21 45.123 +18 05 16.89           ~ 168 0
78 NAME UMa I Galaxy G 10 34 52.80 +51 55 12.0     14.4     ~ 286 1
79 NAME Willman 1 G 10 49 21.0 +51 03 00     15.2     ~ 274 0
80 NAME Leo B G 11 13 28.13 +22 09 10.1   12.9 12.0     ~ 771 0
81 NAME Leo V G 11 31 09.60 +02 13 12.0     16.0     ~ 175 0
82 NAME Leo IV Dwarf Galaxy G 11 32 57.0 -00 32 00     15.1     ~ 341 1
83 NAME Crater II Dwarf Galaxy G 11 49 14 -18 24.8           ~ 82 0
84 NAME Hydra II G 12 21 42.1 -31 59 07           ~ 70 0
85 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 6084 0
86 NAME Coma Dwarf Galaxy G 12 26 59.0 +23 54 15     14.1     ~ 408 1
87 NAME CVn II dSph G 12 57 09.6 +34 19 12     16.1     ~ 227 2
88 NAME CVn I dSph G 13 28 03.5 +33 33 21     13.1     ~ 282 1
89 NAME Bootes III G 13 57 07.4 +26 46 30     12.6     ~ 76 1
90 NAME Bootes II G 13 58 00.0 +12 51 00     15.4     ~ 207 0
91 NAME Bootes Dwarf Spheroidal Galaxy G 14 00 00.0 +14 30 00     12.8     ~ 367 0
92 NAME UMi Galaxy G 15 09 11.34 +67 12 51.7   13.60 10.6     ~ 1234 0
93 NAME Draco II Gl? 15 52 47.6 +64 33 55           ~ 73 0
94 LEDA 2801026 LSB 16 13 47.504 +54 22 08.25     15.9     ~ 98 0
95 NAME Hercules Dwarf Galaxy G 16 31 02.0 +12 47 30     14.0     ~ 294 1
96 NAME Dra dSph G 17 20 14.335 +57 55 16.39   12.40 10.6     ~ 1219 1
97 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12381 0
98 NAME SDG G 18 55 03.1 -30 28 42   4.5 3.6     ~ 1869 2
99 NAME Sgr dIG G 19 29 59.0 -17 40 41   15.5 13.6     ~ 286 1
100 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1469 0
101 NAME Laevens 5 Gl? 19 52 40.5 -22 04 05           ~ 44 0
102 NAME Ind II G 20 38.9 -46 10           ~ 21 0
103 NAME Aquarius Dwarf G 20 46 51.7 -12 50 54 15.75 15.18 14.83 14.46   ~ 408 1
104 NAME Indus I Cl* 21 08 49.970 -51 09 48.60           ~ 44 0
105 IC 5152 G 22 02 41.521 -51 17 47.20   11.03 10.9 10.19   ~ 222 1
106 NAME Gru II G 22 04.1 -46 26           ~ 49 0
107 NAME Pegasus III G 22 24 22.6 +05 25 12           ~ 38 0
108 NAME Andromeda XXVIII G 22 32 41.20 +31 12 58.2     15.6     ~ 69 0
109 NAME Aquarius 2 G 22 33 55.5 -09 19 39           ~ 31 0
110 NAME Tuc Galaxy G 22 41 49.6 -64 25 10   15.7 15.2     ~ 277 0
111 NAME Tuc II G 22 51 55.1 -58 34 08           ~ 98 0
112 NAME Grus I G 22 56 42.4 -50 09 48           ~ 64 0
113 NAME Lacerta I G 22 58 16.3 +41 17 28           ~ 38 0
114 NAME Pisces II G 22 58 31.0 +05 57 09     16.3     ~ 225 0
115 NAME Andromeda VII GiG 23 26 31.7 +50 40 33   13.6 11.8     ~ 189 1
116 NAME Peg Dwarf Irregular Galaxy G 23 28 35.2 +14 44 35 13.85 13.16 12.52     ~ 433 1
117 NAME Tuc V G 23 37.4 -63 16           ~ 39 0
118 NAME Phe II G 23 39 59.4 -54 24 22           ~ 53 0
119 NAME Peg dSph GiG 23 51 46.4 +24 35 11   14.5 13.2     ~ 224 2
120 NAME Andromeda XXI G 23 54 47.7 +42 28 15     14.8     ~ 92 0
121 NAME Tuc III G 23 56.6 -59 36           ~ 120 0
122 NAME Andromeda XXIX G 23 58 55.6 +30 45 20     16.0     ~ 48 0
123 NAME Local Group GrG ~ ~           ~ 7354 0

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2021.09.21-15:41:46

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