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dc.contributor.author
Claria Olmedo, Juan Jose
dc.contributor.author
Piatti, Andres Eduardo
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Lapasset Gomar, Emilio
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Mermilliod, J. C.
dc.date.available
2017-08-14T19:38:24Z
dc.date.issued
2003-02
dc.identifier.citation
Claria Olmedo, Juan Jose; Piatti, Andres Eduardo; Lapasset Gomar, Emilio; Mermilliod, J. C.; Multicolour photometry and Coravel observations of stars in the southern open cluster IC 2488; EDP Sciences; Astronomy and Astrophysics; 399; 2; 2-2003; 543-551
dc.identifier.issn
0004-6361
dc.identifier.uri
http://hdl.handle.net/11336/22338
dc.description.abstract
We preseent new UBV photoelectric observations of 119 stars in the field of the southern open cluster IC 2488, supplemented by DDO and Washington photometry and Coravel radial velocities for a sample of red giant candidates. Nearly 50% of the stars sampled - including three red giants and one blue straggler - are found to be probable cluster members. Photometric membership probabilities of the red giant candidates show good agreement with those obtained from Coravel data. A mean radial velocity of (-2.63 +/- 0.06) km/s is derived for the cluster giants. The reddening across the cluster is found to be E(B-V) = 0.24 +/- 0.04. IC 2488, located at a distance of (1250 +/- 120) pc from the Sun and 96 below the Galactic plane, is most probably not related to the planetary nebulae ESO 166-PN21. A metal abundance 0.10 +/- 0.06 relative to the Sun is determined from DDO data of the red giant members, in good agreement with the metallicity values derived from five independent Washington abundance indices. An age of 180 Myr is determined from the fitting of isochrones computed with convective overshooting for Z = 0.019. The isochrone for log t = 8.25 reproduces remarkably well not only the morphology of the upper main sequence but also the observed red giant pattern.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
EDP Sciences
dc.rights
info:eu-repo/semantics/openAccess
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Open Cluster
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Photometry
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Radial Velocities
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Multicolour photometry and Coravel observations of stars in the southern open cluster IC 2488
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-08-10T14:07:42Z
dc.journal.volume
399
dc.journal.number
2
dc.journal.pagination
543-551
dc.journal.pais
Francia
dc.journal.ciudad
Paris
dc.description.fil
Fil: Claria Olmedo, Juan Jose. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
dc.description.fil
Fil: Lapasset Gomar, Emilio. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Mermilliod, J. C.. Universite de Lausanne; Suiza
dc.journal.title
Astronomy and Astrophysics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1051/0004-6361:20021828
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2003/08/aa3152/aa3152.html
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