Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1779551 | New Astronomy | 2006 | 11 Pages |
Abstract
We have obtained CCD BVIKC photometry down to V â¼Â 21.5 for the open cluster LyngÃ¥ 11 and its surrounding field. This previously unstudied object appears to be rich and highly absorbed. A cluster angular radius of 4.5â²Â ± 0.5â², equivalent to (3.0 ± 0.3) pc, is estimated from star counts in 100-pixel a side boxes distributed throughout the whole observed field. Our analysis suggests that LyngÃ¥ 11 is moderately young and probably of solar metallicity. Adopting the theoretical metal content Z = 0.02, which provides the best global fit, we derive an age of (630 ± 70) Myr. Simultaneously, colour excesses E(B â V) = 0.70 and E(V â I) = 0.85 and an apparent distance modulus V â MV = 14.0 are obtained. These results place LyngÃ¥ 11 at a distance of (2.3 ± 0.5) kpc from the Sun and â¼6.5 kpc from the Galactic centre. The properties of a sample of clusters aligned along the line-of-sight of LyngÃ¥ 11 are examined as well.
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Physics and Astronomy
Astronomy and Astrophysics
Authors
A.E. Piatti, J.J. Clariá, A.V. Ahumada,