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| Query : 1996A&A...310..715C |
1996A&A...310..715C - Astronomy and Astrophysics, volume 310715-721 (1996/6-3)
The Tucana dwarf Galaxy.
CASTELLANI M., MARCONI G. and BUONANNO R.
Abstract (from CDS):
We present deep CCD photometry for the dwarf galaxy in Tucana (l=323, b=-47.4). The data indicate that the galaxy is dominated by an intermediate/old stellar population with metallicity similar to that of the galactic globular clusters NGC 6752 and NGC 7089 (M2) (we find [Fe/H]≃-1.56). The distance modulus we derived, (m-M)V≃24.72±0.2, makes clear that this galaxy belongs to the Local Group. Tucana is clearly different from other dwarf galaxies, such as Leo I (Lee et al. 1993b), or Phoenix (Ortolani and Gratton 1988), because there is no evidence of a young stellar population (t≤5Gyrs) We suggest that the Tucana Galaxy is a genuine dwarf spheroidal in which no recent burst of star formation occurred.
Abstract Copyright: ∼
Journal keyword(s): stars: HR-diagrams - stars: luminosity functions - galaxies: elliptical - galaxies: stellar content - galaxies: individual: Tucana dwarf
VizieR on-line data: <Available at CDS (J/A+A/310/715): tucana.dat>
Nomenclature: Table 2: [CMB96] NNN (Nos 1-940).
Simbad objects: 12
| Number of rows : 12 |
| 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 | NGC 104 | GlC | 00 24 05.359 | -72 04 53.20 | 4.09 | ~ | 4158 | 0 | ||||
| 2 | NAME Phoenix Dwarf Galaxy | Sy1 | 01 51 06.3 | -44 26 41 | 13.48 | 13.2 | 12.69 | ~ | 575 | 2 | ||
| 3 | NGC 1851 | GlC | 05 14 06.76 | -40 02 47.6 | ~ | 1529 | 0 | |||||
| 4 | ESO 206-20A | G | 06 41 36.7 | -50 57 58 | 22.14 | 11.0 | 19.47 | ~ | 1190 | 0 | ||
| 5 | Z 64-73 | G | 10 08 28.12 | +12 18 23.4 | 11.3 | 10.0 | ~ | 1284 | 1 | |||
| 6 | NGC 6397 | GlC | 17 40 42.09 | -53 40 27.6 | 5.17 | ~ | 2103 | 0 | ||||
| 7 | NGC 6752 | GlC | 19 10 52.11 | -59 59 04.4 | ~ | 2121 | 0 | |||||
| 8 | MCG-02-53-003 | G | 20 46 51.7 | -12 50 54 | 15.75 | 15.18 | 14.83 | 14.46 | ~ | 470 | 1 | |
| 9 | M 15 | GlC | 21 29 58.33 | +12 10 01.2 | ~ | 3274 | 0 | |||||
| 10 | M 2 | GlC | 21 33 27.02 | -00 49 23.7 | 6.25 | ~ | 1114 | 1 | ||||
| 11 | NAME Tuc Galaxy | G | 22 41 49.6 | -64 25 10 | 15.7 | 15.2 | ~ | 324 | 0 | |||
| 12 | Z 431-72 | G | 23 28 35.2 | +14 44 35 | 13.85 | 13.16 | 12.52 | ~ | 499 | 1 |
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