2015MNRAS.449.3568M

Query : 2015MNRAS.449.3568M

2015MNRAS.449.3568M - Mon. Not. R. Astron. Soc., 449, 3568-3580 (2015/June-1)

What controls the ionized gas turbulent motions in dwarf galaxies?

MOISEEV A.V., TIKHONOV A.V. and KLYPIN A.

Abstract (from CDS):

Using three-dimensional (3D) spectroscopy with a scanning Fabry-Perot interferometer, we study the kinematics of ionized gas in 59 nearby dwarf galaxies. Combining our results with data from the literature, we provide a global relation between the gas velocity dispersion σ and the star formation rate (SFR) and Hα luminosity for galaxies with a very broad range of star formation rates: SFR = 0.001-300M☉/yr. We find that the SFR-σ relation for the combined sample of dwarf galaxies, star-forming, local luminous and ultraluminous infrared galaxies can be fitted in the form σ∝SFR5.3±0.2. This implies that the slope of the L-σ relation inferred from a sample of rotation-supported disc galaxies (including mergers) is similar to the L-σ relation of individual giant HII regions. We present arguments that the velocity dispersion of the ionized gas does not reflect virial motions in the gravitational potential of dwarf galaxies and instead is determined mainly by the energy injected into the interstellar medium by ongoing star formation.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): ISM: bubbles - galaxies: dwarf - galaxies: ISM - galaxies: kinematics and dynamics

CDS comments: KK 149 = [KK98a] 149. Anon J0125+07 not identified (not enough information).

Simbad objects: 62

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Number of rows : 62
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 IC 10 G 00 20 25.50 +59 17 17.0   13.6 9.5     ~ 1118 1
2 NGC 100 LSB 00 24 02.837 +16 29 11.00   14.6       ~ 129 0
3 UGC 260 GiP 00 27 02.911 +11 35 01.72   14.0       ~ 76 1
4 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1235 2
5 UGC 772 LSB 01 13 40.450 +00 52 39.16   17       ~ 63 0
6 UGC 891 AG? 01 21 18.90 +12 24 43.0 15.36 14.82 14.36 12.87   ~ 106 0
7 UGC 993 H2G 01 25 34.1903008704 +07 59 24.703412028   15.6       ~ 44 0
8 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5838 1
9 UGC 1281 LSB 01 49 31.71 +32 35 16.2   13.0       ~ 167 0
10 NGC 784 LSB 02 01 16.932 +28 50 14.13 12.97 12.50 12.07 11.83   ~ 196 0
11 LEDA 2807107 G 02 27 26.9 +57 29 17   17.8       ~ 23 0
12 UGC 1924 GiG 02 27 49.7635 +31 43 30.264   15.4   14.2   ~ 40 0
13 NGC 1036 AG? 02 40 28.982 +19 17 49.48   13.5       ~ 117 0
14 Mrk 600 AG? 02 51 04.57 +04 27 13.9 14.76 15.07 14.70 14.50 14.29 ~ 123 0
15 NGC 1156 rG 02 59 42.8528847264 +25 14 28.352017320 12.13 12.32 11.74     ~ 313 1
16 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7065 0
17 [PBT2001] SBSG 0335-052 W G 03 37 38.40 -05 02 37.5   19.14     18.85 ~ 107 1
18 SBSG 0335-052B G 03 37 44.04 -05 02 40.2   16.77 16.65   16.79 ~ 185 1
19 UGCA 92 AG? 04 32 03.8366 +63 36 51.243   16.15       ~ 125 0
20 UGCA 116 H2G 05 55 42.645 +03 23 32.23 10.74 11.68 11.46   11.82 ~ 538 0
21 LEDA 95594 G 05 59 40.4 +73 25 40   17.1       ~ 44 0
22 UGC 3476 AG? 06 30 28.30 +33 18 02.0   15.7       ~ 39 0
23 Mrk 5 H2G 06 42 15.53 +75 37 32.6   17.0       ~ 110 0
24 UGC 3672 AG? 07 06 27.336 +30 19 23.61   17       ~ 40 0
25 LEDA 2790884 bCG 08 25 55.5166210656 +35 32 31.833368556   18.2       ~ 120 1
26 SDSS J082605.73+353525.1 AG? 08 26 05.732 +35 35 25.16   17.56 17.65     ~ 14 0
27 UGC 4459 GiG 08 34 07.20 +66 10 54.0 15.39 15.03 14.70 14.49   ~ 338 2
28 NGC 2976 GiP 09 47 15.458 +67 54 58.97 11.77 11.03 10.16 9.51   ~ 673 1
29 UGC 5340 AG? 09 56 46.047 +28 49 43.77 14.82 14.74 14.59 14.55   ~ 227 1
30 UGC 5427 AG? 10 04 40.949 +29 21 51.54   15.2       ~ 68 0
31 NAME M81 dwB LSB 10 05 30.45024 +70 21 51.4253 15.95 15.56 15.09 14.87   ~ 203 1
32 Mrk 33 AG? 10 32 31.956 +54 24 03.53 13.29 13.66 13.13 12.71 12.27 ~ 368 1
33 [ITS2007] 52339-578-60 EmG 10 44 57.797 +03 53 13.15           ~ 48 0
34 NGC 3353 AGN 10 45 22.390 +55 57 37.36 12.90 13.25 12.79     ~ 359 1
35 Mrk 36 SBG 11 04 58.298 +29 08 16.54   15.5 15.29     ~ 225 0
36 NAME Arp's Galaxy AG? 11 19 34.344 +51 30 12.17   17.3       ~ 71 0
37 UGC 6456 bCG 11 27 59.90 +78 59 39.0   14.50       ~ 335 1
38 UGC 6817 AG? 11 50 52.984 +38 52 50.92   13.72 13.9 13.39   ~ 166 0
39 LEDA 2815986 AG? 12 02 02.4750603336 +54 15 51.049196784   18.0       ~ 76 0
40 NGC 4068 AG? 12 04 03.265 +52 35 26.05   13.29   12.77   ~ 180 0
41 Z 269-49 AG? 12 15 46.626 +52 23 13.91   15.3       ~ 70 0
42 UGC 7577 GiG 12 27 40.90 +43 29 44.0 13.75 13.10 12.7 12.33   ~ 255 0
43 NGC 4460 H2G 12 28 45.557 +44 51 51.25   12.5       ~ 140 0
44 MCG+07-26-011 AG? 12 28 52.298 +42 10 40.09   15       ~ 38 0
45 NGC 4485 GiP 12 30 31.113 +41 42 04.22 12.10 12.42 11.93 11.93   ~ 284 2
46 NGC 4490 GiP 12 30 34.5 +41 38 26 10.03 10.22 9.79     ~ 574 3
47 NAME CVn I dwA GiC 12 38 40.06 +32 46 00.5 16.91 16.66 16.73 16.62   ~ 232 0
48 UGC 8313 LSB 13 13 53.848 +42 12 30.89   14.45   13.49   ~ 68 1
49 UGC 8508 AG? 13 30 44.8682655624 +54 54 38.522749824 14.72 14.25 13.90 13.75   ~ 195 0
50 UGC 8638 EmG 13 39 19.348 +24 46 27.77 15.21 14.84 14.46 14.29   ~ 88 0
51 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2914 2
52 UGC 9240 AG? 14 24 43.21 +44 31 41.8 14.24 13.54 13.17 13.07   ~ 200 0
53 Mrk 829 GiP 14 50 56.495 +35 34 18.27   14.5 14.83     ~ 209 0
54 NGC 6052 AG? 16 05 12.8715178104 +20 32 32.607297132 13.01 13.44 13.00     ~ 351 2
55 NGC 6789 AG? 19 16 41.169 +63 58 23.90   13.76       ~ 113 1
56 UGC 11583 LSB 20 30 15.30 +60 26 25.0   17       ~ 64 0
57 LEDA 2801050 LSB 20 48 24.1 +58 37 06   17.6       ~ 19 0
58 HS 2236+1344 bCG 22 38 31.1192205216 +14 00 29.770282476           ~ 37 0
59 NGC 7625 AG? 23 20 30.132 +17 13 32.16 13.31 13.23 11.98 11.25   ~ 264 0
60 Mrk 324 AG? 23 26 32.783 +18 16 00.07   15.5       ~ 66 0
61 LEDA 71605 EmG 23 30 09.7 +25 31 56   15.0       ~ 54 0
62 UGC 12713 AG? 23 38 14.758 +30 42 33.24   15.1       ~ 56 0

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