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dc.contributor.author
Vergne, Maria Marcela
dc.contributor.author
Feinstein Baigorri, Carlos
dc.contributor.author
Martinez, Ruben Enrique
dc.contributor.author
Orsatti, Ana Maria
dc.contributor.author
Alvarez, María Paula
dc.date.available
2016-12-22T18:57:43Z
dc.date.issued
2010-04
dc.identifier.citation
Vergne, Maria Marcela; Feinstein Baigorri, Carlos; Martinez, Ruben Enrique; Orsatti, Ana Maria; Alvarez, María Paula; Optical polarization observations in the Scorpius region: NGC 6124; Wiley Blackwell Publishing, Inc; Monthly Notices Of The Royal Astronomical Society; 403; 4-2010; 2041-2052
dc.identifier.issn
0035-8711
dc.identifier.uri
http://hdl.handle.net/11336/9956
dc.description.abstract
We have obtained optical multicolour (UBVRI) linear polarimetric data for 46 of the brightest stars in the area of the open cluster NGC 6124 in order to investigate the properties of the interstellar medium (ISM) that lies along the line of sight towards the cluster. Our data yield a mean polarization efficiency of PV/E(B - V) = 3.1 +/- 0.62, i.e. a value lower than the polarization produced by the ISM with normal efficiency for an average colour excess of E(B - V) = 0.80 as that found for NGC 6124. Besides, the polarization shows an orientation of which is not parallel to the Galactic disc, an effect that we think may be caused by the Lupus cloud. Our analysis also indicates that the observed visual extinction in NGC 6124 is caused by the presence of three different absorption sheets located between the Sun and NGC 6124. The values of the internal dispersion of the polarization (ΔPV ~ 1.3 per cent) and of the colour excess (ΔE(B - V) ~ 0.29 mag) for the members of NGC 6124 seem to be compatible with the presence of an intracluster dust component. Only six stars exhibit some evidence of intrinsic polarization. Our work also shows that polarimetry provides an excellent tool to distinguish between member and non-member stars of a cluster.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Interstellas Medium
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Interestellar Dust
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Open Clusters
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Ngc 6124 (Galaxia)
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Optical polarization observations in the Scorpius region: NGC 6124
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-14T12:56:12Z
dc.journal.volume
403
dc.journal.pagination
2041-2052
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Vergne, Maria Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina
dc.description.fil
Fil: Feinstein Baigorri, Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina
dc.description.fil
Fil: Martinez, Ruben Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina
dc.description.fil
Fil: Orsatti, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina
dc.description.fil
Fil: Alvarez, María Paula. Universidad Nacional de la Plata. Facultad de Cs.astronomicas y Geofisicas. Observatorio Astronomica D/la Plata - Sede Central; Argentina
dc.journal.title
Monthly Notices Of The Royal Astronomical Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://mnras.oxfordjournals.org/content/403/4/2041
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/j.1365-2966.2010.16242.x
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2010.16242.x/abstract


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