2020MNRAS.491.1901H


Query : 2020MNRAS.491.1901H

2020MNRAS.491.1901H - Mon. Not. R. Astron. Soc., 491, 1901-1919 (2020/January-2)

Newly discovered dwarf galaxies in the MATLAS low-density fields.

HABAS R., MARLEAU F.R., DUC P.-A., DURRELL P.R., PAUDEL S., POULAIN M., SANCHEZ-JANSSEN R., SREEJITH S., RAMASAWMY J., STEMOCK B., LEACH C., CUILLANDRE J.-C., GWYN S., AGNELLO A., BILEK M., FENSCH J., MULLER O., PENG E.W. and VAN DER BURG R.F.J.

Abstract (from CDS):

We present the photometric properties of 2210 newly identified dwarf galaxy candidates in the Mass Assembly of early Type gaLAxies with their fine Structures (MATLAS) fields. The MATLAS deep imaging survey mapped ∼142 deg2 of the sky around nearby isolated early type galaxies using MegaCam on the Canada-France-Hawaii Telescope, reaching surface brightnesses of ∼28.5-29 in the g band. The dwarf candidates were identified through a direct visual inspection of the images and by visually cleaning a sample selected using a partially automated approach, and were morphologically classified at the time of identification. Approximately 75 per cent of our candidates are dEs, indicating that a large number of early type dwarfs also populate low-density environments, and 23.2 per cent are nucleated. Distances were determined for 13.5 per cent of our sample using pre-existing zspec measurements and H I detections. We confirm the dwarf nature for 99 per cent of this sub-sample based on a magnitude cut Mg = -18. Additionally, most of these (∼90 per cent) have relative velocities suggesting that they form a satellite population around nearby massive galaxies rather than an isolated field sample. Assuming that the candidates over the whole survey are satellites of the nearby galaxies, we demonstrate that the MATLAS dwarfs follow the same scaling relations as dwarfs in the Local Group as well as the Virgo and Fornax clusters. We also find that the nucleated fraction increases with Mg, and evidence of a morphology-density relation for dwarfs around isolated massive galaxies.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: dwarf - galaxies: fundamental parameters - galaxies: photometry - galaxies: structure

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

Simbad objects: 31

goto Full paper

goto View the reference in ADS

Number of rows : 31
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 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11370 1
2 NAME Scl Group GrG 01 00 06 -33 44.2           ~ 472 0
3 NGC 448 GiP 01 15 16.530 -01 37 33.98   13.2       ~ 88 0
4 ACO S 373 ClG 03 38 30 -35 27.3           ~ 1624 0
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15461 1
6 NGC 2685 Sy2 08 55 34.7056265191 +58 44 03.877798862   13.68 12.70     ~ 410 1
7 IC 560 GiG 09 45 53.336 -00 16 08.84   14.6       ~ 50 0
8 M 81 Sy2 09 55 33.17306143 +69 03 55.0609270   7.89 6.94     ~ 4069 5
9 NGC 3109 G 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 709 2
10 IC 598 LIN 10 12 48.5665334629 +43 08 43.969430940   13.8       ~ 48 0
11 NAME M96 Group GrG 10 48 +13.3           ~ 286 0
12 NGC 3499 GiG 11 03 11.0433045432 +56 13 18.395450138   14.3       ~ 67 0
13 IC 676 GiG 11 12 39.8140774166 +09 03 19.836734750   13.4       ~ 125 0
14 [JMK2016] NGC 3625-DGSAT-2 LSB 11 21 22.91 +57 34 50.1           ~ 2 0
15 [JMK2016] NGC 3625-DGSAT-1 LSB 11 21 28.45 +57 43 55.2           ~ 2 0
16 [JMK2016] NGC 3625-DGSAT-4 LSB 11 21 40.79 +57 24 37.0           ~ 2 0
17 [JMK2016] NGC 3625-DGSAT-3 LSB 11 22 12.03 +58 02 11.9           ~ 2 0
18 M 85 GiP 12 25 24.053 +18 11 27.89   10.2       ~ 612 0
19 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 6068 0
20 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4368 2
21 NAME Cen A Group GrG 13 20 33.9 -44 58 51           ~ 238 0
22 NAME Centaurus A Sy2 13 25 27.61509104 -43 01 08.8056025   8.18 6.84 6.66   ~ 4110 3
23 M 83 SBG 13 37 00.919 -29 51 56.74 8.85 8.11 7.52 7.21   ~ 2308 2
24 NGC 5308 GiP 13 47 00.4356033187 +60 58 23.332964486   12.5       ~ 192 0
25 NAME M101 Group GrG 14 03 +54.3           ~ 90 1
26 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2631 2
27 [MVA2014] DF 7 LSB 14 05 47.50 +55 07 57.3   20.4       ~ 11 0
28 [MVA2014] DF 4 LSB 14 07 33.80 +54 42 39.2   18.8       ~ 12 0
29 [MVA2014] DF 6 LSB 14 08 18.70 +55 11 30.6   20.1       ~ 10 0
30 IC 1024 GiG 14 31 27.221 +03 00 32.78   13.87       ~ 106 1
31 NAME Local Group GrG ~ ~           ~ 7313 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2020MNRAS.491.1901H and select 'bookmark this link' or equivalent in the popup menu


2021.07.26-07:00:02

© Université de Strasbourg/CNRS

    • Contact