Polarimetry in the outskirts of NGC 6611
We present new polarimetric UBVRI observations of 25 stars in the direction of the halo of NGC 6611, the rich stellar open cluster embedded in an ionized hydrogen complex (M16). Our plan is to characterize the interstellar material (ISM) associated with halo stars in order to make a comparison with...
| Autores: | , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2006 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/22032 |
| Acceso en línea: | http://hdl.handle.net/11336/22032 |
| Access Level: | acceso abierto |
| Palabra clave: | Dust Interstellar Medium Open Clusters Polarimetry https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
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Polarimetry in the outskirts of NGC 6611Orsatti, Ana MariaVega, Ema IreneMarraco, Hugo GustavoDustInterstellar MediumOpen ClustersPolarimetryhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present new polarimetric UBVRI observations of 25 stars in the direction of the halo of NGC 6611, the rich stellar open cluster embedded in an ionized hydrogen complex (M16). Our plan is to characterize the interstellar material (ISM) associated with halo stars in order to make a comparison with the ISM dusty core characteristics that resulted from a previous investigation by the same authors. Of the halo stars, 47% (8 out of 17) show indications of intrinsic polarization in their light, similar to what was found for core stars (50%). We have identified the presence of nearby dust clouds located on the Local arm that produce a mean polarization of about 1%; a value = 0.61 ± 0.07 μm, which is slightly larger than that of the average ISM; and a mean direction of the polarization vectors of = 81fdg9 ± 1fdg8. The ISM associated with the halo region has similar to the general interstellar medium (0.55 ± 0.07 μm). The observed polarizations show a gradual increase from halo ( = 1.93% ± 0.3%) to core ( = 3.19% ± 0.63%). Position angles of the e-vector for both groups are generally similar, but there exists a slight difference in mean direction between them that is within the errors. We have also found that the halo stars are possibly represented by Whittet & van Breda's relationship, while in the cluster's core the dust does not fulfill the above-mentioned relationship. As a conclusion, we cannot find any clear difference between core and halo dust characteristics, with the exception of , which may suggest a change in dust size.Fil: Orsatti, Ana Maria. 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: Vega, Ema Irene. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Marraco, Hugo Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaIOP Publishing2006-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22032Orsatti, Ana Maria; Vega, Ema Irene; Marraco, Hugo Gustavo; Polarimetry in the outskirts of NGC 6611; IOP Publishing; Astronomical Journal; 132; 5; 11-2006; 1783-17880004-6256CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/507674/metainfo:eu-repo/semantics/altIdentifier/doi/10.1086/507674info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:27:48Zoai:ri.conicet.gov.ar:11336/22032instacron: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:34982024-05-08 14:27:48.887CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Polarimetry in the outskirts of NGC 6611 |
| title |
Polarimetry in the outskirts of NGC 6611 |
| spellingShingle |
Polarimetry in the outskirts of NGC 6611 Orsatti, Ana Maria Dust Interstellar Medium Open Clusters Polarimetry https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| title_short |
Polarimetry in the outskirts of NGC 6611 |
| title_full |
Polarimetry in the outskirts of NGC 6611 |
| title_fullStr |
Polarimetry in the outskirts of NGC 6611 |
| title_full_unstemmed |
Polarimetry in the outskirts of NGC 6611 |
| title_sort |
Polarimetry in the outskirts of NGC 6611 |
| dc.creator.none.fl_str_mv |
Orsatti, Ana Maria Vega, Ema Irene Marraco, Hugo Gustavo |
| author |
Orsatti, Ana Maria |
| author_facet |
Orsatti, Ana Maria Vega, Ema Irene Marraco, Hugo Gustavo |
| author_role |
author |
| author2 |
Vega, Ema Irene Marraco, Hugo Gustavo |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Dust Interstellar Medium Open Clusters Polarimetry https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| topic |
Dust Interstellar Medium Open Clusters Polarimetry https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| description |
We present new polarimetric UBVRI observations of 25 stars in the direction of the halo of NGC 6611, the rich stellar open cluster embedded in an ionized hydrogen complex (M16). Our plan is to characterize the interstellar material (ISM) associated with halo stars in order to make a comparison with the ISM dusty core characteristics that resulted from a previous investigation by the same authors. Of the halo stars, 47% (8 out of 17) show indications of intrinsic polarization in their light, similar to what was found for core stars (50%). We have identified the presence of nearby dust clouds located on the Local arm that produce a mean polarization of about 1%; a value = 0.61 ± 0.07 μm, which is slightly larger than that of the average ISM; and a mean direction of the polarization vectors of = 81fdg9 ± 1fdg8. The ISM associated with the halo region has similar to the general interstellar medium (0.55 ± 0.07 μm). The observed polarizations show a gradual increase from halo ( = 1.93% ± 0.3%) to core ( = 3.19% ± 0.63%). Position angles of the e-vector for both groups are generally similar, but there exists a slight difference in mean direction between them that is within the errors. We have also found that the halo stars are possibly represented by Whittet & van Breda's relationship, while in the cluster's core the dust does not fulfill the above-mentioned relationship. As a conclusion, we cannot find any clear difference between core and halo dust characteristics, with the exception of , which may suggest a change in dust size. |
| publishDate |
2006 |
| dc.date.none.fl_str_mv |
2006-11 |
| 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/11336/22032 Orsatti, Ana Maria; Vega, Ema Irene; Marraco, Hugo Gustavo; Polarimetry in the outskirts of NGC 6611; IOP Publishing; Astronomical Journal; 132; 5; 11-2006; 1783-1788 0004-6256 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/22032 |
| identifier_str_mv |
Orsatti, Ana Maria; Vega, Ema Irene; Marraco, Hugo Gustavo; Polarimetry in the outskirts of NGC 6611; IOP Publishing; Astronomical Journal; 132; 5; 11-2006; 1783-1788 0004-6256 CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/507674/meta info:eu-repo/semantics/altIdentifier/doi/10.1086/507674 |
| 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 |
| dc.publisher.none.fl_str_mv |
IOP Publishing |
| publisher.none.fl_str_mv |
IOP Publishing |
| dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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15.811543 |