2016A&A...590A.125C


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.18CEST11:24:17

2016A&A...590A.125C - Astronomy and Astrophysics, volume 590A, 125-125 (2016/6-1)

Neutral gas outflows in nearby [U]LIRGs via optical NaD feature.

CAZZOLI S., ARRIBAS S., MAIOLINO R. and COLINA L.

Abstract (from CDS):

We studied the properties of the neutral gas in a sample of 38 local luminous and ultra luminous infrared galaxies ([U]LIRGs, 51 individual galaxies at z<=0.09), which mainly covers the less explored LIRG luminosity range. This study is based on the analysis of the spatially integrated and spatially resolved spectra of the NaDλλ 5890, 5896Å feature obtained with the integral field unit (IFU) of VIMOS at the Very Large Telescope. Analyzing spatially integrated spectra, we find that the contribution of the stars to the observed NaD equivalent width is small (<35%) for about half of the sample, and therefore this feature is dominated by inter stellar medium (ISM) absorption. After subtracting the stellar contribution, we find that the pure-ISM integrated spectra generally show blueshifted NaD profiles, indicating neutral gas outflow velocities, V, in the range 65-260km/s. Excluding the galaxies with powerful AGNs, V shows a dependency with the star formation rate (SFR) of the type V∝SFR0.15, which is in rather good agreement with previous results. The spatially resolved analysis could be performed for 40 galaxies, 22 of which have neutral gas velocity fields dominated by noncircular motions with signatures of cone-like winds. However, a large number of targets (11/40) show disk rotation signatures. Based on a simple model, we found that the wind masses are in the range 0.4-7.5x108M, reaching up to ∼3% of the dynamical mass of the host. The mass rates are typically only ∼0.2-0.4 times the corresponding global SFR indicating that, in general, the mass loss is too small to slow down the star formation significantly. In the majority of cases, the velocity of the outflowing gas is not sufficient to escape the host potential well and, therefore, most of the gas rains back into the galaxy disk. On average V/vesc is higher in less massive galaxies, confirming that the galaxy mass has a primary role in shaping the recycling of gas and metals. The comparison between the wind power and kinetic power of the starburst associated with SNe indicates that only the starburst could drive the outflows in nearly all the [U]LIRGs galaxies, as the wind power is generally lower than 20% of the kinetic power supplied by the starburst. The contribution of an active galactic nuclei (AGN) is, in principle, significant in two cases.

Abstract Copyright: © ESO, 2016

Journal keyword(s): galaxies: starburst - ISM: jets and outflows - ISM: kinematics and dynamics - techniques: spectroscopic

Simbad objects: 38

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Number of rows : 38

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 MCG-07-03-014 GiP 01 18 08.370 -44 27 43.29   14.43   13.06   ~ 73 0
2 NGC 633 EmG 01 36 23.418 -37 19 17.64   13.50   12.50   ~ 79 1
3 NGC 1614 AGN 04 34 00.027 -08 34 44.57   14.66 13.99     ~ 614 0
4 2MASX J05210136-2521450 Sy2 05 21 01.3987198411 -25 21 45.269338983   15.47 14.75     ~ 441 0
5 2MASX J06025406-7103104 LIN 06 02 54.066 -71 03 10.48   15.6       ~ 77 1
6 IRAS 06076-2139 EmG 06 09 45.7859423135 -21 40 23.516504022   15.64   14.46   ~ 65 0
7 2MASX J06210118-6317238 Sy2 06 21 01.188 -63 17 23.81   16.70   15.27   ~ 56 1
8 ESO 255-7 IG 06 27 22.588 -47 10 46.45   14.48   13.60   ~ 61 0
9 ESO 557-2 EmG 06 31 47.217 -17 37 17.09   15.03   13.21   ~ 58 0
10 IRAS 06592-6313 G 06 59 40.2744312709 -63 17 53.028333205   15.61   14.28   ~ 48 0
11 2MASX J07032428-6015221 Sy2 07 03 24.2520923348 -60 15 22.465765682   16.02   14.72   ~ 51 1
12 NGC 2369 GiG 07 16 37.753 -62 20 37.51   13.23   11.56 12.3 ~ 117 0
13 2MASX J08370182-4954302 G 08 37 01.827 -49 54 30.27           ~ 51 0
14 ESO 432-6 IG 08 44 28 -31 41.8   16.4       ~ 27 0
15 2MASX J08523204-6901557 G 08 52 32.047 -69 01 55.74   16.01   15.17   ~ 31 0
16 2MASX J09041268-3627007 G 09 04 12.689 -36 27 00.76           ~ 67 0
17 IC 563 IG 09 46 20.361 +03 02 43.86   14.7       ~ 78 1
18 NGC 3110 H2G 10 04 02.124 -06 28 29.12   13.4   13.3 12.5 ~ 146 3
19 IC 2545 IG 10 06 04.581 -33 53 05.55   15.27 14.27 14.25   ~ 95 0
20 NGC 3256 IG 10 27 51.284 -43 54 13.55   11.83 11.33 10.62 11.9 ~ 771 2
21 ESO 264-36 GiG 10 43 07.676 -46 12 44.50   14.34   12.55   ~ 65 0
22 ESO 264-57 G 10 59 01.794 -43 26 25.81   15.02   13.22   ~ 63 0
23 ESO 319-22 G 11 27 54.0796301424 -41 36 52.248094984   14.56   16.21   ~ 51 0
24 ESO 320-30 H2G 11 53 11.722 -39 07 48.72   13.30   11.86   ~ 159 1
25 ESO 440-58 IG 12 06 51.8 -31 56 47   15.44   14.89   ~ 51 0
26 ESO 267-30 G 12 14 12.839 -47 13 43.42   14.20   12.69 12.9 ~ 67 0
27 2MASX J12142211-5632332 G 12 14 22.0941848886 -56 32 33.341502495   16.8       ~ 50 0
28 MCG-02-33-098 G 13 02 19.5 -15 46 05   14       ~ 78 0
29 ESO 507-70 SyG 13 02 52.354 -23 55 17.65   14.77 14.78 13.24   ~ 104 0
30 NGC 5135 Sy2 13 25 44.059 -29 50 01.24   12.58 13.35 11.53 12.2 ~ 436 1
31 IC 4518 Sy2 14 57 45.6 -43 07 58   14.5       ~ 65 0
32 LEDA 59990 H2G 17 16 35.7 -10 20 38   15.53       ~ 110 0
33 IC 4687 AGN 18 13 39.829 -57 43 31.25   14.35 14.3 12.78   ~ 119 1
34 2MASX J21161852-4433374 G 21 16 18.5751356914 -44 33 37.140155607   17.48   16.24   ~ 25 1
35 NGC 7130 AGN 21 48 19.490 -34 57 04.73   12.86 13.87 11.57   ~ 396 0
36 IC 5179 EmG 22 16 09.1156883076 -36 50 37.102745221   12.29 11.89 11.38   ~ 180 1
37 NAME South America H2G 22 51 49.307 -17 52 23.96   16.97       ~ 290 3
38 ESO 148-2 Sy2 23 15 46.772 -59 03 15.94   14.94 14.73 13.95   ~ 236 1

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2021.04.18-11:24:17

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