2011A&A...527A..60R


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.22CET12:22:29

2011A&A...527A..60R - Astronomy and Astrophysics, volume 527A, 60-60 (2011/3-1)

VLT-VIMOS integral field spectroscopy of luminous and ultraluminous infrared galaxies. III. The atlas of the stellar and ionized gas distribution.

RODRIGUEZ-ZAURIN J., ARRIBAS S., MONREAL-IBERO A., COLINA L., ALONSO-HERRERO A. and ALFONSO-GARZON J.

Abstract (from CDS):

Luminous and ultraluminous infrared galaxies (LIRGs and ULIRGs) are much more numerous at higher redshifts than locally, dominating the star-formation rate density at redshifts ∼1-2. Therefore, they are important objects in order to understand how galaxies form and evolve through cosmic time. Local samples provide a unique opportunity to study these objects in detail. We aim to characterize the morphologies of the stellar continuum and the ionized gas (Hα) emissions from local sources, and investigate how they relate with the dynamical status and IR-luminosity of the sources. We use optical (5250-7450Å) integral field spectroscopic (IFS) data for a representative sample of 38 sources (31 LIRGs and 7 ULIRGs), taken with the VIMOS instrument on the VLT.We present an atlas of IFS images of continuum emission, Hα emission, and Hα equivalent widths for the sample. The morphologies of the Hα emission are substantially different from those of the stellar continuum. The Hα images frequently reveal extended structures that are not visible in the continuum, such as HII regions in spiral arms, tidal tails, rings, bridges, of up to few kpc from the nuclear regions. The morphologies of the continuum and Hα images are studied on the basis of the C2kpc parameter, which measures the concentration of the emission within the central 2kpc. The C2kpc values found for the Hα images are higher than those of the continuum for the majority (85%) of the objects in our sample. On the other hand, most of the objects in our sample (∼62%) have more than half of their Hα emission outside the central 2kpc. No clear trends are found between the values of C2kpc and the IR-luminosity of the sources. On the other hand, our results suggest that the star formation in advance mergers and early-stage interactions is more concentrated than in isolated objects. Finally, we compared the Hα and infrared emissions as tracers of the star-formation activity. We find that the star-formation rates derived using the Hα luminosities generally underpredict those derived using the IR luminosities, even after accounting for reddening effects.

Abstract Copyright:

Journal keyword(s): galaxies: interactions - galaxies: starburst - techniques: spectroscopic

Simbad objects: 49

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Number of rows : 49

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 ESO 244-12 PaG 01 18 08.31 -44 27 43.4           ~ 82 1
2 MCG-07-03-014 GiP 01 18 08.370 -44 27 43.29   14.43   13.06   ~ 71 0
3 NGC 633 EmG 01 36 23.418 -37 19 17.64   13.50   12.50   ~ 75 1
4 ESO 297-12 EmG 01 36 24.1494524571 -37 20 25.707473821   15.06   13.76 14.7 ~ 40 1
5 NGC 1614 AGN 04 34 00.027 -08 34 44.57   14.66 13.99     ~ 594 0
6 2MASX J05210136-2521450 Sy2 05 21 01.3987198411 -25 21 45.269338983   15.47 14.75     ~ 420 0
7 2MASX J06025406-7103104 LIN 06 02 54.066 -71 03 10.48   15.6       ~ 76 1
8 IRAS 06076-2139 EmG 06 09 45.7859423135 -21 40 23.516504022   15.64   14.46   ~ 60 0
9 2MASX J06210118-6317238 Sy2 06 21 01.188 -63 17 23.81   16.70   15.27   ~ 56 1
10 ESO 255-7 IG 06 27 22.588 -47 10 46.45   14.48   13.60   ~ 60 0
11 ESO 557-2 EmG 06 31 47.217 -17 37 17.09   15.03   13.21   ~ 56 0
12 IRAS 06592-6313 G 06 59 40.2744312709 -63 17 53.028333205   15.61   14.28   ~ 47 0
13 2MASX J07032428-6015221 Sy2 07 03 24.2520923348 -60 15 22.465765682   16.02   14.72   ~ 49 1
14 NGC 2369 GiG 07 16 37.753 -62 20 37.51   13.23   11.56 12.3 ~ 110 0
15 2MASX J08370182-4954302 G 08 37 01.827 -49 54 30.27           ~ 48 0
16 LEDA 24552 G 08 44 27.2 -31 41 51   16.4       ~ 23 0
17 ESO 432-6 IG 08 44 28 -31 41.8   16.4       ~ 27 0
18 2MASX J08442894-3141307 G 08 44 28.949 -31 41 30.75           ~ 25 0
19 ESO 60-16 G 08 52 30.77 -69 01 59.8           ~ 39 0
20 2MASX J08523204-6901557 G 08 52 32.047 -69 01 55.74   16.01   15.17   ~ 30 0
21 2MASX J09041268-3627007 G 09 04 12.689 -36 27 00.76           ~ 64 0
22 IC 563 IG 09 46 20.361 +03 02 43.86   14.7       ~ 73 1
23 IC 564 rG 09 46 21.094 +03 04 16.86   14.1       ~ 77 0
24 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5229 6
25 NGC 3110 H2G 10 04 02.124 -06 28 29.12   13.4   13.3 12.5 ~ 140 3
26 IC 2545 IG 10 06 04.581 -33 53 05.55   15.27 14.27 14.25   ~ 93 0
27 NGC 3256 IG 10 27 51.284 -43 54 13.55   11.83 11.33 10.62 11.9 ~ 734 2
28 ESO 264-36 GiG 10 43 07.676 -46 12 44.50   14.34   12.55   ~ 63 0
29 ESO 264-57 G 10 59 01.794 -43 26 25.81   15.02   13.22   ~ 61 0
30 ESO 319-22 G 11 27 54.0796301424 -41 36 52.248094984   14.56   16.21   ~ 49 0
31 ESO 320-30 H2G 11 53 11.722 -39 07 48.72   13.30   11.86   ~ 146 1
32 ESO 440-58 IG 12 06 51.8 -31 56 47   15.44   14.89   ~ 49 0
33 ESO 267-29 G 12 13 52.2951904691 -47 16 25.696718007   14.18   12.93   ~ 57 0
34 ESO 267-30 G 12 14 12.839 -47 13 43.42   14.20   12.69 12.9 ~ 64 0
35 2MASX J12142211-5632332 G 12 14 22.0941848886 -56 32 33.341502495   16.8       ~ 48 0
36 MCG-02-33-098 G 13 02 19.5 -15 46 05   14       ~ 76 0
37 MCG-02-33-099 GiG 13 02 20.372 -15 45 59.49   18   13.16   ~ 26 0
38 ESO 507-70 SyG 13 02 52.354 -23 55 17.65   14.77 14.78 13.24   ~ 100 0
39 NGC 5135 Sy2 13 25 44.059 -29 50 01.24   12.58 13.35 11.53 12.2 ~ 415 1
40 IC 4518 Sy2 14 57 45.6 -43 07 58   14.5       ~ 62 0
41 LEDA 59990 H2G 17 16 35.7 -10 20 38   15.53       ~ 107 0
42 IC 4686 G 18 13 38.7780782848 -57 43 57.282812413   14.67   13.52   ~ 54 1
43 IC 4687 AGN 18 13 39.829 -57 43 31.25   14.35 14.3 12.78   ~ 114 1
44 IC 4689 IG 18 13 40.334 -57 44 54.25   15.07   13.48   ~ 40 0
45 2MASX J21161852-4433374 G 21 16 18.5751356914 -44 33 37.140155607   17.48   16.24   ~ 24 1
46 NGC 7130 AGN 21 48 19.490 -34 57 04.73   12.86 13.87 11.57   ~ 375 0
47 IC 5179 EmG 22 16 09.1156883076 -36 50 37.102745221   12.29 11.89 11.38   ~ 171 1
48 NAME South America H2G 22 51 49.307 -17 52 23.96   16.97       ~ 282 3
49 ESO 148-2 Sy2 23 15 46.772 -59 03 15.94   14.94 14.73 13.95   ~ 232 1

    Equat.    Gal    SGal    Ecl

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2019.11.22-12:22:29

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