2024AJ....168..212F


Query : 2024AJ....168..212F

2024AJ....168..212F - Astron. J., 168, 212 (2024/November-0)

All Puffed Up: Exploring Ultra-diffuse Galaxy Origins Through Galaxy Interactions.

FIELDER C., JONES M.G., SAND D.J., BENNET P., CRNOJEVIC D., KARUNAKARAN A., MUTLU-PAKDIL B. and SPEKKENS K.

Abstract (from CDS):

We present new follow-up observations of two ultra-diffuse galaxies (UDGs) selected for their distorted morphologies and tidal features, suggestive of tidal influence. Using Hubble Space Telescope Advanced Camera for Surveys F555W and F814W imaging, we identify 8 ± 2 globular clusters in KUG 0203-Dw1 and 6 ± 2 in KDG 013, abundances typical for normal dwarf galaxies of similar stellar mass. Jansky Very Large Array data reveal a clear H I detection of KUG 0203-Dw1 with a gas mass estimate of $\mathrm{log}{M}_{{\rm{H}}\,{\rm{I}}}/{M}_{\odot }\lesssim 7.4$ and evidence of active stripping by the host, while KDG 013 has no clear gas detection. The UDGs likely originated as normal dwarf galaxies that have been subjected to significant stripping and tidal heating, causing them to become more diffuse. These two UDGs complete a sample of five exhibiting tidal features in the full Canada-France-Hawaii Telescope Legacy Survey area (∼1502 deg). These tidally influenced UDGs exhibit diverse properties; one stands out as a potential result of a dwarf merger, while the remainder suggest tidal heating origins. We also cannot conclusively rule out that these galaxies became UDGs in the field before processing by the group environment, underscoring the need for broader searches of diffuse galaxies to better understand the impact of galaxy interactions.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Dwarf galaxies - Low surface brightness galaxies - Galaxy formation - H I line emission - Globular star clusters - Galaxy tides - Galaxy interactions - Galaxy groups - Extragalactic astronomy

Status at CDS : All or part of tables of objects will be ingested in SIMBAD with priority 1. // All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 26

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Number of rows : 26
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 NAME DGSAT I G 01 17 35.590 +33 31 42.37           ~ 48 0
2 SMDG J0205464-095030 LSB 02 05 46.45 -09 50 29.8           ~ 3 0
3 MCG-02-06-026 AG? 02 05 49.081 -09 49 17.62   15.14   16.77 15.2 ~ 40 0
4 LEDA 2832051 LSB 02 08 33.36600 -07 51 00.3492           ~ 6 0
5 LEDA 1011229 AG? 02 08 38.01 -07 54 14.0           ~ 5 0
6 NGC 829 GiG 02 08 42.1499246184 -07 47 26.871348660   14.2   13.27 14.0 ~ 36 0
7 Mrk 1019 H2G 02 08 43.606 -07 49 50.10   16.5       ~ 22 0
8 LEDA 1012109 AG? 02 08 52.24 -07 50 46.0   16.85   15.96   ~ 8 0
9 NGC 830 GiG 02 08 58.6778480352 -07 46 00.497976240   15.0       ~ 43 1
10 NAME Psc-Per Supercluster SCG 02 33.2 +41 37           ~ 444 1
11 SMDG J0239150-080657 LSB 02 39 15.11 -08 06 58.6     16.5   16.2 ~ 116 0
12 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
13 NAME NGC 1052 Group GrG 02 41 09.3 -08 07 10           ~ 90 0
14 LEDA 3097693 LSB 02 41 46.80 -08 24 09.3     16.2   15.8 ~ 183 0
15 NGC 2708 Sy2 08 56 08.0718678384 -03 21 36.487371348   12.6   12.5 11.9 ~ 102 1
16 MATLAS-437 LSB 08 56 12.8 -03 25 17           ~ 7 0
17 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 905 1
18 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
19 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
20 SMDG J1300580+265835 LSB 13 00 57.996 +26 58 34.72     19.37 18.43   ~ 145 0
21 UGC 9050 LSB 14 08 30.056 +51 13 10.88   17       ~ 14 0
22 [FJS2023] UGC 9050-Dw1 G 14 09 13.0 +51 13 28           ~ 5 0
23 [BSZ2018] NGC 5631-Dw1 LSB 14 26 13.60 +56 31 50.2           ~ 6 0
24 NGC 5631 Sy2 14 26 33.2913328320 +56 34 57.424681848   13.51 12.55     ~ 204 0
25 SDSS J150520.28+014846.6 LSB 15 05 20.28768 +01 48 46.6111       17.81   ~ 46 0
26 NAME NGC 5846 Group GrG 15 05 47.0 +01 34 25           ~ 165 0

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