2015MNRAS.450.3503J


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.24CEST03:32:58

2015MNRAS.450.3503J - Mon. Not. R. Astron. Soc., 450, 3503-3513 (2015/July-2)

Discovery of kpc-scale line emission in barred galaxies, not linked to AGN or star formation.

JAMES P.A. and PERCIVAL S.M.

Abstract (from CDS):

We present an analysis of the optical line emission from nearby barred galaxies, and in particular look at the radial range occupied by the bar. In many cases, this region is marked by what we term a `star formation desert', with a marked deficit of HII regions in optical narrow-band H α imaging. Here we present long-slit spectroscopy revealing that such regions do have line emission, but that it is low-level, spatially smooth and almost ubiquitous. The relative strengths of the H α and the spectrally adjacent [Nii] lines in the regions are completely discrepant from those associated with star formation regions, and more closely match expectations for `LINER' regions. We quantify the total line emission from these extended, kpc-scale regions, and determine the spurious contribution it would make to the determined star formation rate of these galaxies if interpreted as normal H α emission. We concur with previous studies that link this `LINER' emission to old stellar populations, e.g. post-asymptotic giant branch stars, and propose strongly barred early-type spirals as a prime location for further tests of such emission.

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

Journal keyword(s): galaxies: active - galaxies: spiral - galaxies: stellar content - galaxies: structure

Simbad objects: 22

goto Full paper

goto View the reference in ADS

Number of rows : 22

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 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11053 1
2 NGC 864 H2G 02 15 27.641 +06 00 09.43   12.00       ~ 204 1
3 UGC 3685 GiG 07 09 05.9239782981 +61 35 44.052450522   13.1       ~ 47 0
4 NGC 2268 GiG 07 14 17.441 +84 22 56.18   12.1       ~ 131 0
5 NGC 2543 GiP 08 12 57.955 +36 15 16.23   12.70       ~ 136 1
6 NGC 2595 H2G 08 27 41.986 +21 28 44.73   13.9       ~ 166 0
7 NGC 2712 G 08 59 30.458 +44 54 50.40   12.30       ~ 155 0
8 NGC 3185 GiP 10 17 38.5632620545 +21 41 17.601414448   12.99 12.17 12.37   ~ 260 1
9 NAME NGC 3190 Group GrG 10 18.5 +21 54           ~ 6 0
10 M 95 GiP 10 43 57.733 +11 42 13.00 10.71 10.51 9.73 9.48   ~ 951 2
11 NGC 3367 Sy1 10 46 34.9540814677 +13 45 03.084131268 11.89 12.05 11.50     ~ 253 1
12 NAME M96 Group GrG 10 48 +13.3           ~ 281 0
13 NGC 3811 G 11 41 16.655 +47 41 26.62   13.0       ~ 150 0
14 NGC 4051 Sy1 12 03 09.6098828919 +44 31 52.693714606   11.08 12.92 9.94   ~ 2007 1
15 NGC 4210 LIN 12 15 15.8479940774 +65 59 07.089820067   13.4       ~ 111 0
16 NGC 5698 rG 14 37 14.6986316520 +38 27 15.372418369   14.0       ~ 56 0
17 NGC 5806 AGN 15 00 00.432 +01 53 28.56   12.40 11.70 10.94 11.6 ~ 240 1
18 NAME NGC 5846 Group GrG 15 05 47.0 +01 34 25   10.0       ~ 131 0
19 NGC 5846 BiC 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 780 1
20 NGC 5850 LIN 15 07 07.676 +01 32 39.41   11.5   10.79 11.1 ~ 281 1
21 UGC 10888 G 17 29 59.385 +60 21 00.41   14.27       ~ 37 1
22 UGC 11680 Sy2 21 07 44.1 +03 52 31           ~ 87 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2015MNRAS.450.3503J and select 'bookmark this link' or equivalent in the popup menu


2020.10.24-03:32:58

© Université de Strasbourg/CNRS

    • Contact