LYNGÅ 1, a small open cluster containing a red-supergiant member
We present CCD <i>UBVRI</i> (Cousins system) photometric observations complemented with spectroscopic and polarimetric observations that were carried out in the open cluster Lyngå 1. Our data indicate that the cluster reddening is E<sub>B−V</sub> = 0.45 ± 0.03, the ratio A<...
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| Autores principales: | , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2003
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/93857 http://www.astrosmo.unam.mx/rmaa/RMxAA..39-1/PDF/RMxAA..39-1_vazquez.pdf https://ri.conicet.gov.ar/handle/11336/82453 |
| Aporte de: |
| Sumario: | We present CCD <i>UBVRI</i> (Cousins system) photometric observations complemented with spectroscopic and polarimetric observations that were carried out in the open cluster Lyngå 1. Our data indicate that the cluster reddening is E<sub>B−V</sub> = 0.45 ± 0.03, the ratio A<sub>V</sub>/E<sub>B−V</sub> = R suggests that the extinction law may be slightly anomalous (R ≈ 3.5) and that the cluster distance modulus is V<sub>0</sub> − M<sub>V</sub> = 11.40 ± 0.2. The age of Lyngå 1 is bet ween 100 and 125 Myr according to a fitting of theoretical iso chrones, and the slope of its mass spectrum is x ≈ 1.7. The brightest red star in the field is a cluster member of spectral type K2 II–Ib. |
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