Double Nucleus in M83
- Autores
- Mast, Damian; Diaz, Ruben Joaquin; Agüero, Maria Paz
- Año de publicación
- 2006
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- M83 is one of the nearest galaxies with enhanced nuclear star formation, and it presents one of the best opportunities to study the kinematics and physical properties of a circumnuclear starburst. Our three-dimensional spectroscopy data in the R band confirm the presence of a secondary nucleus or mass concentration (previously suggested by Thatte and coworkers). We determine the position of this hidden nucleus, which would be more massive than the visible one and was not detected in the optical Hubble Space Telescope images due, probably, to the strong dust extinction. Using a Keplerian approximation, we estimated for the optical nucleus a mass of (5.0 ± 0.8) × 106 M⊙/sin i (r < 1″.5), and for the hidden nucleus, located 4″ ± 1″ to the northwest (position angle of 271° ± 15°) of the optical nucleus, a mass of (1.00 ± 0.08) × 107 M⊙/sin i(r < l″.5). The emission-line ratio map also unveils the presence of a second circumnuclear ring structure, previously discovered by IR imaging (Elmegreen and coworkers). The data allow us to resolve the behavior of the interstellar medium inside the circumnuclear ring and around the binary mass concentration.
Fil: Mast, Damian. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Diaz, Ruben Joaquin. Gemini Observatorysouthern Operations Center; Chile. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina
Fil: Agüero, Maria Paz. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
GALAXIES: INDIVIDUAL (M83)
GALAXIES: KINEMATICS AND DYNAMICS
GALAXIES: NUCLEI
GALAXIES: STARBURST
GALAXIES: STRUCTURE
TECHNIQUES: SPECTROSCOPIC - 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:11336/210066
Ver los metadatos del registro completo
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spelling |
Double Nucleus in M83Mast, DamianDiaz, Ruben JoaquinAgüero, Maria PazGALAXIES: INDIVIDUAL (M83)GALAXIES: KINEMATICS AND DYNAMICSGALAXIES: NUCLEIGALAXIES: STARBURSTGALAXIES: STRUCTURETECHNIQUES: SPECTROSCOPIChttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1M83 is one of the nearest galaxies with enhanced nuclear star formation, and it presents one of the best opportunities to study the kinematics and physical properties of a circumnuclear starburst. Our three-dimensional spectroscopy data in the R band confirm the presence of a secondary nucleus or mass concentration (previously suggested by Thatte and coworkers). We determine the position of this hidden nucleus, which would be more massive than the visible one and was not detected in the optical Hubble Space Telescope images due, probably, to the strong dust extinction. Using a Keplerian approximation, we estimated for the optical nucleus a mass of (5.0 ± 0.8) × 106 M⊙/sin i (r < 1″.5), and for the hidden nucleus, located 4″ ± 1″ to the northwest (position angle of 271° ± 15°) of the optical nucleus, a mass of (1.00 ± 0.08) × 107 M⊙/sin i(r < l″.5). The emission-line ratio map also unveils the presence of a second circumnuclear ring structure, previously discovered by IR imaging (Elmegreen and coworkers). The data allow us to resolve the behavior of the interstellar medium inside the circumnuclear ring and around the binary mass concentration.Fil: Mast, Damian. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Diaz, Ruben Joaquin. Gemini Observatorysouthern Operations Center; Chile. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Agüero, Maria Paz. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaIOP Publishing2006-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/210066Mast, Damian; Diaz, Ruben Joaquin; Agüero, Maria Paz; Double Nucleus in M83; IOP Publishing; Astronomical Journal; 131; 3; 3-2006; 1394-14040004-62561538-3881CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1086/499941info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:46:14Zoai:ri.conicet.gov.ar:11336/210066instacron: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:34982025-10-15 14:46:14.736CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Double Nucleus in M83 |
title |
Double Nucleus in M83 |
spellingShingle |
Double Nucleus in M83 Mast, Damian GALAXIES: INDIVIDUAL (M83) GALAXIES: KINEMATICS AND DYNAMICS GALAXIES: NUCLEI GALAXIES: STARBURST GALAXIES: STRUCTURE TECHNIQUES: SPECTROSCOPIC |
title_short |
Double Nucleus in M83 |
title_full |
Double Nucleus in M83 |
title_fullStr |
Double Nucleus in M83 |
title_full_unstemmed |
Double Nucleus in M83 |
title_sort |
Double Nucleus in M83 |
dc.creator.none.fl_str_mv |
Mast, Damian Diaz, Ruben Joaquin Agüero, Maria Paz |
author |
Mast, Damian |
author_facet |
Mast, Damian Diaz, Ruben Joaquin Agüero, Maria Paz |
author_role |
author |
author2 |
Diaz, Ruben Joaquin Agüero, Maria Paz |
author2_role |
author author |
dc.subject.none.fl_str_mv |
GALAXIES: INDIVIDUAL (M83) GALAXIES: KINEMATICS AND DYNAMICS GALAXIES: NUCLEI GALAXIES: STARBURST GALAXIES: STRUCTURE TECHNIQUES: SPECTROSCOPIC |
topic |
GALAXIES: INDIVIDUAL (M83) GALAXIES: KINEMATICS AND DYNAMICS GALAXIES: NUCLEI GALAXIES: STARBURST GALAXIES: STRUCTURE TECHNIQUES: SPECTROSCOPIC |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
M83 is one of the nearest galaxies with enhanced nuclear star formation, and it presents one of the best opportunities to study the kinematics and physical properties of a circumnuclear starburst. Our three-dimensional spectroscopy data in the R band confirm the presence of a secondary nucleus or mass concentration (previously suggested by Thatte and coworkers). We determine the position of this hidden nucleus, which would be more massive than the visible one and was not detected in the optical Hubble Space Telescope images due, probably, to the strong dust extinction. Using a Keplerian approximation, we estimated for the optical nucleus a mass of (5.0 ± 0.8) × 106 M⊙/sin i (r < 1″.5), and for the hidden nucleus, located 4″ ± 1″ to the northwest (position angle of 271° ± 15°) of the optical nucleus, a mass of (1.00 ± 0.08) × 107 M⊙/sin i(r < l″.5). The emission-line ratio map also unveils the presence of a second circumnuclear ring structure, previously discovered by IR imaging (Elmegreen and coworkers). The data allow us to resolve the behavior of the interstellar medium inside the circumnuclear ring and around the binary mass concentration. Fil: Mast, Damian. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Diaz, Ruben Joaquin. Gemini Observatorysouthern Operations Center; Chile. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina Fil: Agüero, Maria Paz. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
M83 is one of the nearest galaxies with enhanced nuclear star formation, and it presents one of the best opportunities to study the kinematics and physical properties of a circumnuclear starburst. Our three-dimensional spectroscopy data in the R band confirm the presence of a secondary nucleus or mass concentration (previously suggested by Thatte and coworkers). We determine the position of this hidden nucleus, which would be more massive than the visible one and was not detected in the optical Hubble Space Telescope images due, probably, to the strong dust extinction. Using a Keplerian approximation, we estimated for the optical nucleus a mass of (5.0 ± 0.8) × 106 M⊙/sin i (r < 1″.5), and for the hidden nucleus, located 4″ ± 1″ to the northwest (position angle of 271° ± 15°) of the optical nucleus, a mass of (1.00 ± 0.08) × 107 M⊙/sin i(r < l″.5). The emission-line ratio map also unveils the presence of a second circumnuclear ring structure, previously discovered by IR imaging (Elmegreen and coworkers). The data allow us to resolve the behavior of the interstellar medium inside the circumnuclear ring and around the binary mass concentration. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-03 |
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/11336/210066 Mast, Damian; Diaz, Ruben Joaquin; Agüero, Maria Paz; Double Nucleus in M83; IOP Publishing; Astronomical Journal; 131; 3; 3-2006; 1394-1404 0004-6256 1538-3881 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/210066 |
identifier_str_mv |
Mast, Damian; Diaz, Ruben Joaquin; Agüero, Maria Paz; Double Nucleus in M83; IOP Publishing; Astronomical Journal; 131; 3; 3-2006; 1394-1404 0004-6256 1538-3881 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1086/499941 |
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 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 |
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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13.22299 |