Optical multicolor polarization observations in the region of the open cluster NGC 5749
- Autores
- Vergne, Maria Marcela; Feinstein Baigorri, Carlos; Martinez, Ruben Enrique
- Año de publicación
- 2007
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We present (UBVRI) multicolor linear polarimetric data for 31 of the brightest stars in the area of the open cluster NGC 5749 considered to study the properties of the interstellar medium (ISM) towards the cluster. Our data yield a mean polarization percentage of PV ∼ 1.7%, close to the polarization value produced by the ISM with normal efficiency (P(%) = 3.5E(B−V) 0.8 ) for a mean color excess of EB−V = 0.42. The mean angle of polarization vectors, θ = 74◦, agrees quite well with the expected angle produced by dust particles aligned in the direction of the galactic disk (and the magnetic field) in the region. Our analysis indicates that the visual absorption affecting the stars in NGC 5749 is partially produced by a dust layer located up to 300 pc from the Sun and also by a second layer of dust closer to the cluster (located at least at 700 pc). The observed photometry and our polarization data are consistent with the existence of dust within the cluster. We also show in this work how polarimetry could be an excellent technique for identifying nonmember stars.
Fil: Vergne, Maria Marcela. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Feinstein Baigorri, Carlos. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Martinez, Ruben Enrique. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina - Materia
-
Open clusters
Interstellar medium
Polarimetry - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/44582
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/44582 |
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Optical multicolor polarization observations in the region of the open cluster NGC 5749Vergne, Maria MarcelaFeinstein Baigorri, CarlosMartinez, Ruben EnriqueOpen clustersInterstellar mediumPolarimetryhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present (UBVRI) multicolor linear polarimetric data for 31 of the brightest stars in the area of the open cluster NGC 5749 considered to study the properties of the interstellar medium (ISM) towards the cluster. Our data yield a mean polarization percentage of PV ∼ 1.7%, close to the polarization value produced by the ISM with normal efficiency (P(%) = 3.5E(B−V) 0.8 ) for a mean color excess of EB−V = 0.42. The mean angle of polarization vectors, θ = 74◦, agrees quite well with the expected angle produced by dust particles aligned in the direction of the galactic disk (and the magnetic field) in the region. Our analysis indicates that the visual absorption affecting the stars in NGC 5749 is partially produced by a dust layer located up to 300 pc from the Sun and also by a second layer of dust closer to the cluster (located at least at 700 pc). The observed photometry and our polarization data are consistent with the existence of dust within the cluster. We also show in this work how polarimetry could be an excellent technique for identifying nonmember stars.Fil: Vergne, Maria Marcela. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Feinstein Baigorri, Carlos. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Martinez, Ruben Enrique. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaEDP Sciences2007-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/44582Vergne, Maria Marcela; Feinstein Baigorri, Carlos; Martinez, Ruben Enrique; Optical multicolor polarization observations in the region of the open cluster NGC 5749; EDP Sciences; Astronomy and Astrophysics; 462; 12-2007; 621-6260004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/ 10.1051/0004-6361:20042124info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2007/05/aa2124-04/aa2124-04.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:40:41Zoai:ri.conicet.gov.ar:11336/44582instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:40:41.66CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Optical multicolor polarization observations in the region of the open cluster NGC 5749 |
title |
Optical multicolor polarization observations in the region of the open cluster NGC 5749 |
spellingShingle |
Optical multicolor polarization observations in the region of the open cluster NGC 5749 Vergne, Maria Marcela Open clusters Interstellar medium Polarimetry |
title_short |
Optical multicolor polarization observations in the region of the open cluster NGC 5749 |
title_full |
Optical multicolor polarization observations in the region of the open cluster NGC 5749 |
title_fullStr |
Optical multicolor polarization observations in the region of the open cluster NGC 5749 |
title_full_unstemmed |
Optical multicolor polarization observations in the region of the open cluster NGC 5749 |
title_sort |
Optical multicolor polarization observations in the region of the open cluster NGC 5749 |
dc.creator.none.fl_str_mv |
Vergne, Maria Marcela Feinstein Baigorri, Carlos Martinez, Ruben Enrique |
author |
Vergne, Maria Marcela |
author_facet |
Vergne, Maria Marcela Feinstein Baigorri, Carlos Martinez, Ruben Enrique |
author_role |
author |
author2 |
Feinstein Baigorri, Carlos Martinez, Ruben Enrique |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Open clusters Interstellar medium Polarimetry |
topic |
Open clusters Interstellar medium Polarimetry |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We present (UBVRI) multicolor linear polarimetric data for 31 of the brightest stars in the area of the open cluster NGC 5749 considered to study the properties of the interstellar medium (ISM) towards the cluster. Our data yield a mean polarization percentage of PV ∼ 1.7%, close to the polarization value produced by the ISM with normal efficiency (P(%) = 3.5E(B−V) 0.8 ) for a mean color excess of EB−V = 0.42. The mean angle of polarization vectors, θ = 74◦, agrees quite well with the expected angle produced by dust particles aligned in the direction of the galactic disk (and the magnetic field) in the region. Our analysis indicates that the visual absorption affecting the stars in NGC 5749 is partially produced by a dust layer located up to 300 pc from the Sun and also by a second layer of dust closer to the cluster (located at least at 700 pc). The observed photometry and our polarization data are consistent with the existence of dust within the cluster. We also show in this work how polarimetry could be an excellent technique for identifying nonmember stars. Fil: Vergne, Maria Marcela. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina Fil: Feinstein Baigorri, Carlos. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina Fil: Martinez, Ruben Enrique. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina |
description |
We present (UBVRI) multicolor linear polarimetric data for 31 of the brightest stars in the area of the open cluster NGC 5749 considered to study the properties of the interstellar medium (ISM) towards the cluster. Our data yield a mean polarization percentage of PV ∼ 1.7%, close to the polarization value produced by the ISM with normal efficiency (P(%) = 3.5E(B−V) 0.8 ) for a mean color excess of EB−V = 0.42. The mean angle of polarization vectors, θ = 74◦, agrees quite well with the expected angle produced by dust particles aligned in the direction of the galactic disk (and the magnetic field) in the region. Our analysis indicates that the visual absorption affecting the stars in NGC 5749 is partially produced by a dust layer located up to 300 pc from the Sun and also by a second layer of dust closer to the cluster (located at least at 700 pc). The observed photometry and our polarization data are consistent with the existence of dust within the cluster. We also show in this work how polarimetry could be an excellent technique for identifying nonmember stars. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-12 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/44582 Vergne, Maria Marcela; Feinstein Baigorri, Carlos; Martinez, Ruben Enrique; Optical multicolor polarization observations in the region of the open cluster NGC 5749; EDP Sciences; Astronomy and Astrophysics; 462; 12-2007; 621-626 0004-6361 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/44582 |
identifier_str_mv |
Vergne, Maria Marcela; Feinstein Baigorri, Carlos; Martinez, Ruben Enrique; Optical multicolor polarization observations in the region of the open cluster NGC 5749; EDP Sciences; Astronomy and Astrophysics; 462; 12-2007; 621-626 0004-6361 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/ 10.1051/0004-6361:20042124 info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2007/05/aa2124-04/aa2124-04.html |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
EDP Sciences |
publisher.none.fl_str_mv |
EDP Sciences |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614435891576832 |
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13.070432 |