1996A&AS..120..153B

Query : 1996A&AS..120..153B

1996A&AS..120..153B - Astron. Astrophys., Suppl. Ser., 120, 153-156 (1996/November-2)

NTT V, I colour-magnitude diagrams of the bulge globular cluster Tonantzintla 2.

BICA E., ORTOLANI S. and BARBUY B.

Abstract (from CDS):

Ton 2 is among the less-known Galactic globular clusters. We present for the first time colour magnitude diagrams in the V, I bands. We used the ESO NTT telescope under an excellent seeing of 0.6". The horizontal branch is red and close to the red giant branch, tilted by some differential reddening. The horizontal branch morphology and the red giant branch curvature suggest a metallicity similar to that of 47 Tucanae. We derive a reddening of E(B-V)=1.26 and a distance d☉=6.4kpc. Therefore, Ton 2 is ≃2.0kpc from the Galactic center, and it appears to belong to the bulge population, being however only moderately metal rich.

Abstract Copyright: ∼

Journal keyword(s): globular clusters: individual: Ton 2 - HR diagram

VizieR on-line data: <Available at CDS (J/A+AS/120/153): table2 (Ton 2)>

Nomenclature: Tables 2: Cl* Pismis 26 BOB NNNN (Nos 1-3651)

CDS comments: cluster Tonantzintla 2 = Cl Pismis 26.

Simbad objects: 4

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Number of rows : 4
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 Tonantzintla 2 GlC 17 36 10.500 -38 33 12.00           ~ 115 0
2 Cl* Pismis 26 BOB 3258 * ~ ~     17.47     ~ 2 0
3 Cl* Pismis 26 BOB 3633 * ~ ~     17.03     ~ 2 0
4 Cl* Pismis 26 BOB 3644 * ~ ~     17.13     ~ 2 0

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