SIMBAD references

2008MNRAS.391.1482P - Mon. Not. R. Astron. Soc., 391, 1482-1488 (2008/December-2)

Trumpler 20 - an old and rich open cluster.

PLATAIS I., MELO C., FULBRIGHT J.P., KOZHURINA-PLATAIS V., FIGUEIRA P., BARNES S.A. and MENDEZ R.A.

Abstract (from CDS):

We show that the open cluster Trumpler 20, contrary to the earlier findings, is actually an old Galactic open cluster. New CCD photometry and high-resolution spectroscopy are used to derive the main parameters of this cluster. At [Fe/H] = -0.11 for a single red giant star, the metallicity is slightly subsolar. The best fit to the colour-magnitude diagrams is achieved using a 1.3-Gyr isochrone with convective overshoot. The cluster appears to have a significant reddening at E(B - V) = 0.46 (for B0 spectral type), although for red giants this high reddening yields the colour temperature exceeding the spectroscopic Teff by about 200 K. Trumpler 20 is a very rich open cluster, containing at least 700 members brighter than MV= +4. It may extend over the field of view available in our study at 20x20 arcmin2.

Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): stars: abundances - open clusters and associations: individual: Trumpler 20

VizieR on-line data: <Available at CDS (J/MNRAS/391/1482): tr20.dat>

Nomenclature: Table 1: Cl* Trumpler 20 PMF NNNN (Nos 1-7202).

Status in Simbad:  will not be processed

Simbad objects: 19

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2020.01.19-11:57:30

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