Young and very young stars in NGC 3372, the Carina nebula
- Autores
- Tapia, M.; Roth, M.; Vázquez, Rubén Ángel; Persi, P.
- Año de publicación
- 2004
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Results are presented of a large-scale imaging photometric study of the stellar population in the northern part of NGC 3372 with a w avelength co verage from 0.33 to 2.5 µm. All observations were made at Las Campanas Observatory . The sizes of the three stellar clusters, Tr 14, Tr 15 and Tr 16, were determined b y means of star counts. Two-colour and colour-magnitude diagrams are presented and analyzed for eac h individual cluster. The three clusters were found to b e at a similar distance from the Sun, < d > = 2.7 kpc, but with very large scatter in both AV and d. suggesting drastic variations in intracluster dust densit y . Dust particle size distribution variations are eviden t resulting in wide variations in extinction law. We determined ages bet ween 3 and 60 million years for Tr 15 and bet ween less than 1 and 6 million years for Tr 14 and Tr 16. The Tr 14 cluster is partially em bedded in a dense molecular cloud that extends to wards the south west reaching its highest densit y some three arcmin from the cluster nucleus. The ric h UV field created b y the Tr14 stars ionizes most of the visible HII region in its vicinit y and most of the radio HII region Car I. Deep J H K images of the Car I region reveal the presence of a young, em bedded stellar population that includes several O9–B0 stars and an ultracompact HII region.
Se presentan los resultados de un estudio fotométrico de la población estelar en el norte de NGC 3372 en un intervalo espectral que cubre 0.33 a 2.5 µm. Las observaciones se llevaron a cabo en el Observatorio de Las Campanas. Se determinaron los tamaños de los tres cúmulos, Tr 14, Tr 15 y Tr 16, por medio de conteo de estrellas. Diagramas color-color y color-magnitud sugieren edades entre 3 y 60 millones de años para Tr 15 y entre menos de 1 y 6 millones de años para Tr 14 y Tr 16. Los tres cúmulos se encuentran a la misma distancia: < d > = 2.7 kpc aunque con gran dispersión real en AV y en d. Tr 14 es un cúmulo que se encuentra parcialmente inmerso en una nube molecular densa que se extiende hacia el sureste, teniendo su máxima densidad a unos tres minutos de arco del núcleo del cúmulo. Casi todo el gas de la región HII es ionizado por las estrellas de Tr 14. Sin embargo, imágenes en J H K profundas revelan la presencia de una jo ven población de estrellas O y B inmersas en la nube, en donde se encuentra también una región HII ultracompacta.
Instituto de Astrofísica de La Plata
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Astronomía
Galaxy: open clusters and associations: general
HII regions
ISM: individual: NGC 3372
stars: formation - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/93707
Ver los metadatos del registro completo
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Young and very young stars in NGC 3372, the Carina nebulaTapia, M.Roth, M.Vázquez, Rubén ÁngelPersi, P.AstronomíaGalaxy: open clusters and associations: generalHII regionsISM: individual: NGC 3372stars: formationResults are presented of a large-scale imaging photometric study of the stellar population in the northern part of NGC 3372 with a w avelength co verage from 0.33 to 2.5 µm. All observations were made at Las Campanas Observatory . The sizes of the three stellar clusters, Tr 14, Tr 15 and Tr 16, were determined b y means of star counts. Two-colour and colour-magnitude diagrams are presented and analyzed for eac h individual cluster. The three clusters were found to b e at a similar distance from the Sun, < d > = 2.7 kpc, but with very large scatter in both A<sub>V</sub> and d. suggesting drastic variations in intracluster dust densit y . Dust particle size distribution variations are eviden t resulting in wide variations in extinction law. We determined ages bet ween 3 and 60 million years for Tr 15 and bet ween less than 1 and 6 million years for Tr 14 and Tr 16. The Tr 14 cluster is partially em bedded in a dense molecular cloud that extends to wards the south west reaching its highest densit y some three arcmin from the cluster nucleus. The ric h UV field created b y the Tr14 stars ionizes most of the visible HII region in its vicinit y and most of the radio HII region Car I. Deep J H K images of the Car I region reveal the presence of a young, em bedded stellar population that includes several O9–B0 stars and an ultracompact HII region.Se presentan los resultados de un estudio fotométrico de la población estelar en el norte de NGC 3372 en un intervalo espectral que cubre 0.33 a 2.5 µm. Las observaciones se llevaron a cabo en el Observatorio de Las Campanas. Se determinaron los tamaños de los tres cúmulos, Tr 14, Tr 15 y Tr 16, por medio de conteo de estrellas. Diagramas color-color y color-magnitud sugieren edades entre 3 y 60 millones de años para Tr 15 y entre menos de 1 y 6 millones de años para Tr 14 y Tr 16. Los tres cúmulos se encuentran a la misma distancia: < d > = 2.7 kpc aunque con gran dispersión real en A<sub>V</sub> y en d. Tr 14 es un cúmulo que se encuentra parcialmente inmerso en una nube molecular densa que se extiende hacia el sureste, teniendo su máxima densidad a unos tres minutos de arco del núcleo del cúmulo. Casi todo el gas de la región HII es ionizado por las estrellas de Tr 14. Sin embargo, imágenes en J H K profundas revelan la presencia de una jo ven población de estrellas O y B inmersas en la nube, en donde se encuentra también una región HII ultracompacta.Instituto de Astrofísica de La PlataFacultad de Ciencias Astronómicas y Geofísicas2004-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf73-76http://sedici.unlp.edu.ar/handle/10915/93707enginfo:eu-repo/semantics/altIdentifier/url/http://www.astroscu.unam.mx/rmaa/RMxAC..22/PDF/RMxAC..22_mtapia.pdfinfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/handle/11336/37040info:eu-repo/semantics/altIdentifier/issn/0185-1101info:eu-repo/semantics/altIdentifier/hdl/11336/37040info: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:UNLP2025-09-29T11:19:26Zoai:sedici.unlp.edu.ar:10915/93707Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:19:26.963SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Young and very young stars in NGC 3372, the Carina nebula |
title |
Young and very young stars in NGC 3372, the Carina nebula |
spellingShingle |
Young and very young stars in NGC 3372, the Carina nebula Tapia, M. Astronomía Galaxy: open clusters and associations: general HII regions ISM: individual: NGC 3372 stars: formation |
title_short |
Young and very young stars in NGC 3372, the Carina nebula |
title_full |
Young and very young stars in NGC 3372, the Carina nebula |
title_fullStr |
Young and very young stars in NGC 3372, the Carina nebula |
title_full_unstemmed |
Young and very young stars in NGC 3372, the Carina nebula |
title_sort |
Young and very young stars in NGC 3372, the Carina nebula |
dc.creator.none.fl_str_mv |
Tapia, M. Roth, M. Vázquez, Rubén Ángel Persi, P. |
author |
Tapia, M. |
author_facet |
Tapia, M. Roth, M. Vázquez, Rubén Ángel Persi, P. |
author_role |
author |
author2 |
Roth, M. Vázquez, Rubén Ángel Persi, P. |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Astronomía Galaxy: open clusters and associations: general HII regions ISM: individual: NGC 3372 stars: formation |
topic |
Astronomía Galaxy: open clusters and associations: general HII regions ISM: individual: NGC 3372 stars: formation |
dc.description.none.fl_txt_mv |
Results are presented of a large-scale imaging photometric study of the stellar population in the northern part of NGC 3372 with a w avelength co verage from 0.33 to 2.5 µm. All observations were made at Las Campanas Observatory . The sizes of the three stellar clusters, Tr 14, Tr 15 and Tr 16, were determined b y means of star counts. Two-colour and colour-magnitude diagrams are presented and analyzed for eac h individual cluster. The three clusters were found to b e at a similar distance from the Sun, < d > = 2.7 kpc, but with very large scatter in both A<sub>V</sub> and d. suggesting drastic variations in intracluster dust densit y . Dust particle size distribution variations are eviden t resulting in wide variations in extinction law. We determined ages bet ween 3 and 60 million years for Tr 15 and bet ween less than 1 and 6 million years for Tr 14 and Tr 16. The Tr 14 cluster is partially em bedded in a dense molecular cloud that extends to wards the south west reaching its highest densit y some three arcmin from the cluster nucleus. The ric h UV field created b y the Tr14 stars ionizes most of the visible HII region in its vicinit y and most of the radio HII region Car I. Deep J H K images of the Car I region reveal the presence of a young, em bedded stellar population that includes several O9–B0 stars and an ultracompact HII region. Se presentan los resultados de un estudio fotométrico de la población estelar en el norte de NGC 3372 en un intervalo espectral que cubre 0.33 a 2.5 µm. Las observaciones se llevaron a cabo en el Observatorio de Las Campanas. Se determinaron los tamaños de los tres cúmulos, Tr 14, Tr 15 y Tr 16, por medio de conteo de estrellas. Diagramas color-color y color-magnitud sugieren edades entre 3 y 60 millones de años para Tr 15 y entre menos de 1 y 6 millones de años para Tr 14 y Tr 16. Los tres cúmulos se encuentran a la misma distancia: < d > = 2.7 kpc aunque con gran dispersión real en A<sub>V</sub> y en d. Tr 14 es un cúmulo que se encuentra parcialmente inmerso en una nube molecular densa que se extiende hacia el sureste, teniendo su máxima densidad a unos tres minutos de arco del núcleo del cúmulo. Casi todo el gas de la región HII es ionizado por las estrellas de Tr 14. Sin embargo, imágenes en J H K profundas revelan la presencia de una jo ven población de estrellas O y B inmersas en la nube, en donde se encuentra también una región HII ultracompacta. Instituto de Astrofísica de La Plata Facultad de Ciencias Astronómicas y Geofísicas |
description |
Results are presented of a large-scale imaging photometric study of the stellar population in the northern part of NGC 3372 with a w avelength co verage from 0.33 to 2.5 µm. All observations were made at Las Campanas Observatory . The sizes of the three stellar clusters, Tr 14, Tr 15 and Tr 16, were determined b y means of star counts. Two-colour and colour-magnitude diagrams are presented and analyzed for eac h individual cluster. The three clusters were found to b e at a similar distance from the Sun, < d > = 2.7 kpc, but with very large scatter in both A<sub>V</sub> and d. suggesting drastic variations in intracluster dust densit y . Dust particle size distribution variations are eviden t resulting in wide variations in extinction law. We determined ages bet ween 3 and 60 million years for Tr 15 and bet ween less than 1 and 6 million years for Tr 14 and Tr 16. The Tr 14 cluster is partially em bedded in a dense molecular cloud that extends to wards the south west reaching its highest densit y some three arcmin from the cluster nucleus. The ric h UV field created b y the Tr14 stars ionizes most of the visible HII region in its vicinit y and most of the radio HII region Car I. Deep J H K images of the Car I region reveal the presence of a young, em bedded stellar population that includes several O9–B0 stars and an ultracompact HII region. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-12 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/93707 |
url |
http://sedici.unlp.edu.ar/handle/10915/93707 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
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dc.rights.none.fl_str_mv |
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eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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application/pdf 73-76 |
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