2017ApJ...849L..24M


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.16CEST21:24:46

2017ApJ...849L..24M - Astrophys. J., 849, L24-L24 (2017/November-2)

New VVV Survey globular cluster candidates in the Milky Way bulge.

MINNITI D., GEISLER D., ALONSO-GARCIA J., PALMA T., BEAMIN J.C., BORISSOVA J., CATELAN M., CLARIA J.J., COHEN R.E., CONTRERAS RAMOS R., DIAS B., FERNANDEZ-TRINCADO J.G., GOMEZ M., HEMPEL M., IVANOV V.D., KURTEV R., LUCAS P.W., MONI-BIDIN C., PULLEN J., RAMIREZ ALEGRIA S., SAITO R.K. and VALENTI E.

Abstract (from CDS):

It is likely that a number of Galactic globular clusters remain to be discovered, especially toward the Galactic bulge. High stellar density combined with high and differential interstellar reddening are the two major problems for finding globular clusters located toward the bulge. We use the deep near-IR photometry of the VISTA Variables in the Via Lactea (VVV) Survey to search for globular clusters projected toward the Galactic bulge, and hereby report the discovery of 22 new candidate globular clusters. These objects, detected as high density regions in our maps of bulge red giants, are confirmed as globular cluster candidates by their color-magnitude diagrams. We provide their coordinates as well as their near-IR color-magnitude diagrams, from which some basic parameters are derived, such as reddenings and heliocentric distances. The color-magnitude diagrams reveal well defined red giant branches in all cases, often including a prominent red clump. The new globular cluster candidates exhibit a variety of extinctions (0.06 < AKs < 2.77) and distances (5.3 < D < 9.5 kpc). We also classify the globular cluster candidates into 10 metal-poor and 12 metal-rich clusters, based on the comparison of their color-magnitude diagrams with those of known globular clusters also observed by the VVV Survey. Finally, we argue that the census for Galactic globular clusters still remains incomplete, and that many more candidate globular clusters (particularly the low luminosity ones) await to be found and studied in detail in the central regions of the Milky Way.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): Galaxy: bulge - Galaxy: general - globular clusters: general - globular clusters: general

Nomenclature: Table 1: [MGA2017] NN (Nos 1-22).

Simbad objects: 54

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Number of rows : 54

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     ~ 11310 1
2 [FSR2007] 0584 OpC 02 27 15.0 +61 37 28           ~ 21 0
3 NAME Crater Cluster GlC 11 36 16.20 -10 52 38.8           ~ 66 1
4 Koposov 1 GlC 11 59 18.40 +12 15 35.8           ~ 59 0
5 NAME CVn II dSph G 12 57 09.6 +34 19 12     16.1     ~ 221 2
6 NAME Kim 3 Cl* 13 22 45.20 -30 36 03.6           ~ 11 0
7 NAME Munoz 1 Cl* 15 01 48.02 +66 58 07.3           ~ 16 0
8 [FSR2007] 1716 OpC 16 10 33.0 -53 44 12           ~ 31 0
9 [MGA2017] 9 Gl? 17 10 30 -33 15.1           ~ 2 0
10 [MGA2017] 16 Gl? 17 21 23 -32 49.3           ~ 2 0
11 VVV CL119 Cl* 17 30 46.0 -32 39 05           ~ 2 0
12 [MGA2017] 18 Gl? 17 30 52 -27 16.6           ~ 2 0
13 NAME 2MASS-GC04 OpC 17 35 44.8 -36 21 42           ~ 27 0
14 [MGA2017] 13 Gl? 17 35 54 -34 59.3           ~ 2 0
15 VVV CL003 C?* 17 38 54.56 -29 54 25.3           ~ 5 0
16 [MGA2017] 19 Gl? 17 40 31 -33 57.7           ~ 2 0
17 VVV CL002 GlC 17 41 06.30 -28 50 42.3           ~ 9 0
18 [MGA2017] 12 Gl? 17 42 36 -25 33.4           ~ 2 0
19 [MGA2017] 10 Gl? 17 42 46 -37 18.9           ~ 2 0
20 [MGA2017] 14 Gl? 17 43 03 -31 07.2           ~ 2 0
21 [MGA2017] 15 Gl? 17 44 13 -32 47.4           ~ 2 0
22 [MGA2017] 11 Gl? 17 44 33 -34 43.4           ~ 3 0
23 VVV CL143 Cl* 17 44 36.0 -33 44 18           ~ 3 0
24 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12183 0
25 [MGA2017] 22 GlC 17 48 51 -33 03.7           ~ 6 0
26 [MGA2017] 21 Gl? 17 50 41 -34 14.4           ~ 2 0
27 VVV CL150 Cl* 17 50 41.0 -25 13 06           ~ 3 0
28 ESO 455-49 GlC 17 50 46.40 -31 16 31.0           ~ 161 0
29 [MGA2017] 20 Gl? 17 51 03 -29 50.5           ~ 2 0
30 VVV CL001 Gl? 17 54 42.5 -24 00 53           ~ 14 0
31 [MGA2017] 5 Gl? 17 57 06 -35 41.4           ~ 3 0
32 NAME PWM 2 GlC 17 58 39 -05 04.3           ~ 12 0
33 [MGA2017] 7 Gl? 18 01 36 -33 55.1           ~ 2 0
34 NGC 6522 GlC 18 03 34.08 -30 02 02.3   10.68 9.48     ~ 471 1
35 [MGA2017] 6 Gl? 18 08 22 -31 06.3           ~ 4 0
36 [MGA2017] 17 Gl? 18 11 37 -29 32.3           ~ 3 0
37 ESO 522-1 GlC 18 12 15.80 -22 44 31.0     14.86     ~ 79 1
38 ESO 456-78 GlC 18 14 06.600 -28 38 06.00           ~ 40 0
39 [MGA2017] 4 Gl? 18 15 35 -28 18.0           ~ 3 0
40 [MGA2017] 3 Gl? 18 20 23 -32 24.5           ~ 4 0
41 [MGA2017] 8 Gl? 18 22 19 -26 37.7           ~ 3 0
42 NAME Mercer 5 Cl* 18 23 19.800 -13 40 07.00           ~ 17 0
43 NGC 6624 GlC 18 23 40.51 -30 21 39.7           ~ 799 1
44 [MGA2017] 2 Gl? 18 30 02 -28 26.4           ~ 4 0
45 M 69 GlC 18 31 23.10 -32 20 53.1   9.32 8.31     ~ 421 1
46 NGC 6642 GlC 18 31 54.23 -23 28 34.1   11.30 10.24     ~ 168 0
47 [MGA2017] 1 Gl? 18 34 48 -28 42.7           ~ 4 0
48 NAME SDG G 18 55 03.1 -30 28 42   4.5 3.6     ~ 1836 2
49 [FSR2007] 0190 OpC 20 05 31.3 +33 34 09           ~ 20 0
50 NAME Indus I Cl* 21 08 49.970 -51 09 48.60           ~ 43 0
51 NAME Segue 3 Cl* 21 21 31.0 +19 07 02           ~ 53 0
52 NAME Balbinot 1 Cl* 22 10 42.819 +14 56 49.03           ~ 23 0
53 NAME Kim 1 Cl* 22 11 41.30 +07 01 31.8           ~ 24 0
54 NAME Galactic Bulge reg ~ ~           ~ 3581 0

    Equat.    Gal    SGal    Ecl

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2021.05.16-21:24:46

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