2019A&A...626A..66F

Query : 2019A&A...626A..66F

2019A&A...626A..66F - Astronomy and Astrophysics, volume 626A66-66 (2019/6-1)

An ultra diffuse galaxy in the NGC 5846 group from the VEGAS survey.

FORBES D.A., GANNON J., COUCH W.J., IODICE E., SPAVONE M., CANTIELLO M., NAPOLITANO N. and SCHIPANI P.

Abstract (from CDS):


Context. Many ultra diffuse galaxies (UDGs) have now been identified in clusters of galaxies. However, the number of nearby UDGs suitable for detailed follow-up remain rare.
Aims. Our aim is to begin to identify UDGs in the environments of nearby bright early-type galaxies from the VEGAS survey.
Methods. Here we use a deep g band image of the NGC 5846 group, taken as part of the VEGAS survey, to search for UDGs.
Results. We found one object with properties of a UDG if it associated with the NGC 5846 group, which seems likely. The galaxy, we name NGC 5846_UDG1, has an absolute magnitude of Mg=-14.2, corresponding to a stellar mass of ∼108M☉. It also reveals a system of compact sources which are likely globular clusters. Based on the number of globular clusters detected we estimate a halo mass that is greater than 8x1010M☉ for UDG1.

Abstract Copyright: © ESO 2019

Journal keyword(s): galaxies: dwarf - galaxies: formation - galaxies: star clusters: general - galaxies: halos

Nomenclature: Fig. 1, Table 1: [FGC2019] NGC 5846 UDG1 N=1. Table 2: [FGC2019] NGC 5846 GCNN (Nos GC1-GC20).

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 - 2026 		#notes
1 MCG-03-01-015 G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 782 2
2 SMDG J0239150-080657 LSB 02 39 15.11 -08 06 58.6     16.5   16.2 ~ 116 0
3 MCG+00-07-077 EmG 02 40 23.09 +01 13 45.3   16.1   15.6 16.0 ~ 67 0
4 NAME NGC 1052 Group GrG 02 41 09.3 -08 07 10           ~ 90 0
5 LEDA 3097693 LSB 02 41 46.80 -08 24 09.3     16.2   15.8 ~ 183 0
6 NAME NGC 1068 Group GrG 02 42 40.7 -00 00 48           ~ 9 0
7 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
8 NAME M 96 Group GrG 10 46 45 +11 49.1           ~ 330 0
9 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
10 SMDG J1300580+265835 LSB 13 00 57.996 +26 58 34.72     19.37 18.43   ~ 145 0
11 SMDG J1301582+275012 LSB 13 01 58.205 +27 50 11.91     19.89 19.45   ~ 61 0
12 NAME Cen A Group GrG 13 20 33.9 -44 58 51           ~ 274 0
13 NGC 5813 LIN 15 01 11.2302420864 +01 42 07.141569696 12.00 11.45 10.46 10.06   ~ 673 2
14 [FGC2019] NGC 5846 GC17 Gl? 15 05 18.80 +01 48 42.7           ~ 1 0
15 [FGC2019] NGC 5846 GC15 Gl? 15 05 18.90 +01 48 39.8         23.818 ~ 2 0
16 [FGC2019] NGC 5846 GC4 Gl? 15 05 18.90 +01 49 06.6           ~ 1 0
17 [FGC2019] NGC 5846 GC13 Gl? 15 05 19.20 +01 48 41.5         22.975 ~ 2 0
18 [FGC2019] NGC 5846 GC5 Gl? 15 05 19.50 +01 48 54.4         22.667 ~ 3 0
19 [FGC2019] NGC 5846 GC12 Gl? 15 05 19.50 +01 48 38.1         23.478 ~ 2 0
20 [FGC2019] NGC 5846 GC16 Gl? 15 05 19.5512532888 +01 48 22.983258024           ~ 1 0
21 [FGC2019] NGC 5846 GC11 Gl? 15 05 19.60 +01 48 39.9         23.454 ~ 2 0
22 [FGC2019] NGC 5846 GC14 Gl? 15 05 19.90 +01 48 34.1         24.179 ~ 2 0
23 [FGC2019] NGC 5846 GC18 Gl? 15 05 20.00 +01 48 39.9         22.496 ~ 2 0
24 [FGC2019] NGC 5846 GC19 Gl? 15 05 20.10 +01 48 38.4         22.494 ~ 2 0
25 [FGC2019] NGC 5846 GC10 Gl? 15 05 20.10 +01 48 44.7         21.822 ~ 4 0
26 [FGC2019] NGC 5846 GC20 Gl? 15 05 20.20 +01 48 36.9         23.159 ~ 2 0
27 SDSS J150520.28+014846.6 LSB 15 05 20.28768 +01 48 46.6111       17.81   ~ 46 0
28 [FGC2019] NGC 5846 GC9 Gl? 15 05 20.30 +01 48 46.7         21.542 ~ 4 0
29 [FGC2019] NGC 5846 GC8 Gl? 15 05 20.40 +01 48 49.2         22.376 ~ 2 0
30 [FGC2019] NGC 5846 GC7 Gl? 15 05 20.50 +01 48 45.3         23.014 ~ 2 0
31 [FGC2019] NGC 5846 GC6 Gl? 15 05 20.60 +01 48 41.8         22.264 ~ 3 0
32 [FGC2019] NGC 5846 GC3 Gl? 15 05 20.80 +01 49 03.0         22.252 ~ 2 0
33 [FGC2019] NGC 5846 GC2 Gl? 15 05 21.00 +01 49 02.0         23.77 ~ 2 0
34 [FGC2019] NGC 5846 GC1 Gl? 15 05 21.50 +01 48 54.8           ~ 1 0
35 NAME NGC 5846 Group GrG 15 05 47.0 +01 34 25           ~ 165 0
36 NGC 5845 GiG 15 06 00.7823239488 +01 38 01.704838596   13.8 11.20 12.06 9.94 ~ 403 0
37 NGC 5846 rG 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 891 2
38 NAME Local Group GrG ~ ~           ~ 9325 0

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