2006ApJ...646L.115O

Query : 2006ApJ...646L.115O

2006ApJ...646L.115O - Astrophys. J., 646, L115-L118 (2006/August-1)

AL 3 (BH 261): a new globular cluster in the Galaxy.

ORTOLANI S., BICA E. and BARBUY B.

Abstract (from CDS):

AL 3 (BH 261), previously classified as a faint open cluster candidate, is shown to be a new globular cluster in the Milky Way, by means of B, V, and I color-magnitude diagrams. The main feature of AL 3 is a prominent blue extended horizontal branch. Its color-magnitude diagrams match those of the intermediate-metallicity cluster M5. The cluster is projected in a rich bulge field, also contaminated by the disk main sequence. The globular cluster is located in the Galactic bulge at a distance from the Sun d☉=6.0±0.5 kpc. The reddening is E(B-V)=0.36±0.03, and the metallicity is estimated to be [Fe/H]~-1.3±0.25. AL 3 is probably one of the least massive globular clusters of the Galaxy.

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Journal keyword(s): globular clusters: individual (AL 3) - Stars: Hertzsprung-Russell Diagram

Simbad objects: 20

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Number of rows : 20
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 Cl Pal 1 GlC 03 33 20.04 +79 34 51.8   17.2       ~ 267 1
2 NAME Pyxis Cluster GlC 09 07 57.80 -37 13 17.0           ~ 123 0
3 NAME E 3 GlC 09 20 57.07 -77 16 54.8           ~ 185 0
4 NAME Willman 1 G 10 49 21.0 +51 03 00     15.2     ~ 345 0
5 C 1353-269 GlC 13 56 21.702 -27 10 03.00           ~ 146 0
6 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
7 Cl Lynga 7 OpC 16 11 03.65 -55 19 04.0           ~ 129 0
8 IC 1257 Bz? 17 27 06.00 -07 05 00.0           ~ 110 0
9 ESO 455-11 GlC 17 31 05.20 -29 58 54.0           ~ 208 0
10 NGC 6522 GlC 18 03 34.08 -30 02 02.3           ~ 569 0
11 NGC 6540 GlC 18 06 08.60 -27 45 55.0           ~ 145 0
12 [HJK2000] GC01 GlC 18 08 21.8 -19 49 47           ~ 69 0
13 ESO 280-6 GlC 18 09 06.000 -46 25 24.00           ~ 74 0
14 NGC 6553 GlC 18 09 15.68 -25 54 27.9   9.08       ~ 644 0
15 NAME 2MASS-GC02 GlC 18 09 36.5 -20 46 44           ~ 67 0
16 NGC 6558 GlC 18 10 17.6 -31 45 50           ~ 265 0
17 ESO 456-78 GlC 18 14 06.600 -28 38 06.00           ~ 82 0
18 GLIMPSE C01 GlC 18 48 49.7 -01 29 50           ~ 60 0
19 GCl 124 GlC 23 06 44.48 +12 46 19.2   15.6       ~ 307 1
20 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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