Optical polarization study in the Centaurus Region: NGC 5662
- Autores
- Vergne, María Marcela; Feinstein Baigorri, Carlos; Martínez, Rubén Enrique
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We present (BV RI) multicolor linear polarimetric data of 73 of the brightest stars in the open cluster NGC 5662. Our objective is to study the characteristics of the interstellar medium (ISM) towards it and in its the environment. NGC 5662 is polarimetrically characterized by PV = 2.27%±0.13 and θV =89º.6 ± 1.17. Its polarization efficiency is much higher than the normal efficiency of ISM. The observed visual polarization in NGC 5662 is caused at least by three components of dust at ≈ 200 pc, 500 pc and 900 pc from the Sun. These have different polarimetric characteristics and the layer located at 500 pc has a variable density. The absorption presents a different behavior to polarization as the distance increases. A few of the observed stars present evidences of intrinsic polarization.
Presentamos observaciones polarimétricas lineales en las bandas BV RI de 73 de las estrellas más brillantes en el cúmulo abierto NGC 5662. Nuestro objetivo es estudiar las características del medio interestelar (ISM) en dirección y en los alrededores del cúmulo. NGC 5662 está polarimétricamente caracterizado por PV = 2.27%± 0.13 and θV =89º.6 ± 1.17. Su eficiencia polarimétrica es mucho más alta que la eficiencia normal del medio interestelar. La polarización visual observada en NGC 5662 es causada al menos por tres componentes de polvo a ≈ 200 pc, 500 pc and 900 pc desde el Sol. Estas tienen diferentes características polarimétricas y la componente localizada a 500 pc tiene densidad variable. La absorción presenta un comportamiento diferente a la polarización en función de la distancia. Unas pocas de las estrellas observadas presentan evidencias de polarización intrínseca.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata - Materia
-
Astronomía
dust, extinction
open clusters and associations: individual (NGC 5662)
polarization - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/118436
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Optical polarization study in the Centaurus Region: NGC 5662Vergne, María MarcelaFeinstein Baigorri, CarlosMartínez, Rubén EnriqueAstronomíadust, extinctionopen clusters and associations: individual (NGC 5662)polarizationWe present (BV RI) multicolor linear polarimetric data of 73 of the brightest stars in the open cluster NGC 5662. Our objective is to study the characteristics of the interstellar medium (ISM) towards it and in its the environment. NGC 5662 is polarimetrically characterized by P<sub>V</sub> = 2.27%±0.13 and θ<sub>V</sub> =89º.6 ± 1.17. Its polarization efficiency is much higher than the normal efficiency of ISM. The observed visual polarization in NGC 5662 is caused at least by three components of dust at ≈ 200 pc, 500 pc and 900 pc from the Sun. These have different polarimetric characteristics and the layer located at 500 pc has a variable density. The absorption presents a different behavior to polarization as the distance increases. A few of the observed stars present evidences of intrinsic polarization.Presentamos observaciones polarimétricas lineales en las bandas BV RI de 73 de las estrellas más brillantes en el cúmulo abierto NGC 5662. Nuestro objetivo es estudiar las características del medio interestelar (ISM) en dirección y en los alrededores del cúmulo. NGC 5662 está polarimétricamente caracterizado por P<sub>V</sub> = 2.27%± 0.13 and θ<sub>V</sub> =89º.6 ± 1.17. Su eficiencia polarimétrica es mucho más alta que la eficiencia normal del medio interestelar. La polarización visual observada en NGC 5662 es causada al menos por tres componentes de polvo a ≈ 200 pc, 500 pc and 900 pc desde el Sol. Estas tienen diferentes características polarimétricas y la componente localizada a 500 pc tiene densidad variable. La absorción presenta un comportamiento diferente a la polarización en función de la distancia. Unas pocas de las estrellas observadas presentan evidencias de polarización intrínseca.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Astrofísica de La Plata2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf293-308http://sedici.unlp.edu.ar/handle/10915/118436enginfo:eu-repo/semantics/altIdentifier/url/http://www.astroscu.unam.mx/rmaa/RMxAA..54-2/PDF/RMxAA..54-2_mvergne-II.pdfinfo:eu-repo/semantics/altIdentifier/issn/0185-1101info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:27:50Zoai:sedici.unlp.edu.ar:10915/118436Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:27:50.959SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Optical polarization study in the Centaurus Region: NGC 5662 |
| title |
Optical polarization study in the Centaurus Region: NGC 5662 |
| spellingShingle |
Optical polarization study in the Centaurus Region: NGC 5662 Vergne, María Marcela Astronomía dust, extinction open clusters and associations: individual (NGC 5662) polarization |
| title_short |
Optical polarization study in the Centaurus Region: NGC 5662 |
| title_full |
Optical polarization study in the Centaurus Region: NGC 5662 |
| title_fullStr |
Optical polarization study in the Centaurus Region: NGC 5662 |
| title_full_unstemmed |
Optical polarization study in the Centaurus Region: NGC 5662 |
| title_sort |
Optical polarization study in the Centaurus Region: NGC 5662 |
| dc.creator.none.fl_str_mv |
Vergne, María Marcela Feinstein Baigorri, Carlos Martínez, Rubén Enrique |
| author |
Vergne, María Marcela |
| author_facet |
Vergne, María Marcela Feinstein Baigorri, Carlos Martínez, Rubén Enrique |
| author_role |
author |
| author2 |
Feinstein Baigorri, Carlos Martínez, Rubén Enrique |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Astronomía dust, extinction open clusters and associations: individual (NGC 5662) polarization |
| topic |
Astronomía dust, extinction open clusters and associations: individual (NGC 5662) polarization |
| dc.description.none.fl_txt_mv |
We present (BV RI) multicolor linear polarimetric data of 73 of the brightest stars in the open cluster NGC 5662. Our objective is to study the characteristics of the interstellar medium (ISM) towards it and in its the environment. NGC 5662 is polarimetrically characterized by P<sub>V</sub> = 2.27%±0.13 and θ<sub>V</sub> =89º.6 ± 1.17. Its polarization efficiency is much higher than the normal efficiency of ISM. The observed visual polarization in NGC 5662 is caused at least by three components of dust at ≈ 200 pc, 500 pc and 900 pc from the Sun. These have different polarimetric characteristics and the layer located at 500 pc has a variable density. The absorption presents a different behavior to polarization as the distance increases. A few of the observed stars present evidences of intrinsic polarization. Presentamos observaciones polarimétricas lineales en las bandas BV RI de 73 de las estrellas más brillantes en el cúmulo abierto NGC 5662. Nuestro objetivo es estudiar las características del medio interestelar (ISM) en dirección y en los alrededores del cúmulo. NGC 5662 está polarimétricamente caracterizado por P<sub>V</sub> = 2.27%± 0.13 and θ<sub>V</sub> =89º.6 ± 1.17. Su eficiencia polarimétrica es mucho más alta que la eficiencia normal del medio interestelar. La polarización visual observada en NGC 5662 es causada al menos por tres componentes de polvo a ≈ 200 pc, 500 pc and 900 pc desde el Sol. Estas tienen diferentes características polarimétricas y la componente localizada a 500 pc tiene densidad variable. La absorción presenta un comportamiento diferente a la polarización en función de la distancia. Unas pocas de las estrellas observadas presentan evidencias de polarización intrínseca. Facultad de Ciencias Astronómicas y Geofísicas Instituto de Astrofísica de La Plata |
| description |
We present (BV RI) multicolor linear polarimetric data of 73 of the brightest stars in the open cluster NGC 5662. Our objective is to study the characteristics of the interstellar medium (ISM) towards it and in its the environment. NGC 5662 is polarimetrically characterized by P<sub>V</sub> = 2.27%±0.13 and θ<sub>V</sub> =89º.6 ± 1.17. Its polarization efficiency is much higher than the normal efficiency of ISM. The observed visual polarization in NGC 5662 is caused at least by three components of dust at ≈ 200 pc, 500 pc and 900 pc from the Sun. These have different polarimetric characteristics and the layer located at 500 pc has a variable density. The absorption presents a different behavior to polarization as the distance increases. A few of the observed stars present evidences of intrinsic polarization. |
| publishDate |
2018 |
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2018 |
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http://sedici.unlp.edu.ar/handle/10915/118436 |
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eng |
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