Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebula

Autores
Brandner, Wolfgang; Grebel, Eva K.; Barba, Rodolfo Héctor; Walborn, Nolan Revere; Moneti, Andrea
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the detection of an intermediate-mass, pre-main-sequence population embedded in the nebular filaments surrounding the 30 Doradus region in the Large Magellanic Cloud (LMC) using HST/ NICMOS. In addition to four previously known luminous Class I infrared "protostars," the NICMOS data reveal 20 new sources with intrinsic infrared excess similar to Galactic pre-main-sequence stars. Based on their infrared brightness, these objects can be identified as the LMC equivalent of Galactic pre-main-sequence stars. The faintest LMC young stellar objects in the sample have colors similar to T Tauri stars and have about the same brightness as T Tauri stars if placed at the distance of the LMC. We find no evidence for a lower mass cutoff in the initial mass function. Instead, the whole spectrum of stellar masses from pre-main-sequence stars with ∼1.5 M⊙ to massive O stars still embedded in dense knots appears to be present in the nebular filaments. The majority of the young stellar objects can be found to the north of the central starburst cluster R136. This region is very likely evolving into an OB association. The observations provide further evidence that star formation in the 30 Doradus region is very similar to Galactic star formation and confirm the presence of sequential star formation in 30 Doradus, with present-day star formation taking place in the arc of molecular gas to the north and west of the starburst cluster.
Fil: Brandner, Wolfgang. European Southern Observatory; Alemania. University of Hawaii at Manoa; Estados Unidos
Fil: Grebel, Eva K.. Max-Planck-Institut Astronomie; Alemania
Fil: Barba, Rodolfo Héctor. 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: Walborn, Nolan Revere. Space Telescope Science Institute; Estados Unidos
Fil: Moneti, Andrea. Institut D’astrophysique de Paris; Francia
Materia
GALAXIES: STELLAR CONTENT
MAGELLANIC CLOUDS
STARS: FORMATION
STARS: PRE-MAIN-SEQUENCE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/214200
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/214200
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebulaBrandner, WolfgangGrebel, Eva K.Barba, Rodolfo HéctorWalborn, Nolan RevereMoneti, AndreaGALAXIES: STELLAR CONTENTMAGELLANIC CLOUDSSTARS: FORMATIONSTARS: PRE-MAIN-SEQUENCEhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present the detection of an intermediate-mass, pre-main-sequence population embedded in the nebular filaments surrounding the 30 Doradus region in the Large Magellanic Cloud (LMC) using HST/ NICMOS. In addition to four previously known luminous Class I infrared "protostars," the NICMOS data reveal 20 new sources with intrinsic infrared excess similar to Galactic pre-main-sequence stars. Based on their infrared brightness, these objects can be identified as the LMC equivalent of Galactic pre-main-sequence stars. The faintest LMC young stellar objects in the sample have colors similar to T Tauri stars and have about the same brightness as T Tauri stars if placed at the distance of the LMC. We find no evidence for a lower mass cutoff in the initial mass function. Instead, the whole spectrum of stellar masses from pre-main-sequence stars with ∼1.5 M⊙ to massive O stars still embedded in dense knots appears to be present in the nebular filaments. The majority of the young stellar objects can be found to the north of the central starburst cluster R136. This region is very likely evolving into an OB association. The observations provide further evidence that star formation in the 30 Doradus region is very similar to Galactic star formation and confirm the presence of sequential star formation in 30 Doradus, with present-day star formation taking place in the arc of molecular gas to the north and west of the starburst cluster.Fil: Brandner, Wolfgang. European Southern Observatory; Alemania. University of Hawaii at Manoa; Estados UnidosFil: Grebel, Eva K.. Max-Planck-Institut Astronomie; AlemaniaFil: Barba, Rodolfo Héctor. 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: Walborn, Nolan Revere. Space Telescope Science Institute; Estados UnidosFil: Moneti, Andrea. Institut D’astrophysique de Paris; FranciaIOP Publishing2001-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/214200Brandner, Wolfgang; Grebel, Eva K.; Barba, Rodolfo Héctor; Walborn, Nolan Revere; Moneti, Andrea; Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebula; IOP Publishing; Astronomical Journal; 122; 2; 12-2001; 858-8650004-6256CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1086/322065info:eu-repo/semantics/altIdentifier/doi/10.1086/322065info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:19:27Zoai:ri.conicet.gov.ar:11336/214200instacron: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 10:19:28.25CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebula
title Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebula
spellingShingle Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebula
Brandner, Wolfgang
GALAXIES: STELLAR CONTENT
MAGELLANIC CLOUDS
STARS: FORMATION
STARS: PRE-MAIN-SEQUENCE
title_short Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebula
title_full Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebula
title_fullStr Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebula
title_full_unstemmed Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebula
title_sort Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebula
dc.creator.none.fl_str_mv Brandner, Wolfgang
Grebel, Eva K.
Barba, Rodolfo Héctor
Walborn, Nolan Revere
Moneti, Andrea
author Brandner, Wolfgang
author_facet Brandner, Wolfgang
Grebel, Eva K.
Barba, Rodolfo Héctor
Walborn, Nolan Revere
Moneti, Andrea
author_role author
author2 Grebel, Eva K.
Barba, Rodolfo Héctor
Walborn, Nolan Revere
Moneti, Andrea
author2_role author
author
author
author
dc.subject.none.fl_str_mv GALAXIES: STELLAR CONTENT
MAGELLANIC CLOUDS
STARS: FORMATION
STARS: PRE-MAIN-SEQUENCE
topic GALAXIES: STELLAR CONTENT
MAGELLANIC CLOUDS
STARS: FORMATION
STARS: PRE-MAIN-SEQUENCE
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 the detection of an intermediate-mass, pre-main-sequence population embedded in the nebular filaments surrounding the 30 Doradus region in the Large Magellanic Cloud (LMC) using HST/ NICMOS. In addition to four previously known luminous Class I infrared "protostars," the NICMOS data reveal 20 new sources with intrinsic infrared excess similar to Galactic pre-main-sequence stars. Based on their infrared brightness, these objects can be identified as the LMC equivalent of Galactic pre-main-sequence stars. The faintest LMC young stellar objects in the sample have colors similar to T Tauri stars and have about the same brightness as T Tauri stars if placed at the distance of the LMC. We find no evidence for a lower mass cutoff in the initial mass function. Instead, the whole spectrum of stellar masses from pre-main-sequence stars with ∼1.5 M⊙ to massive O stars still embedded in dense knots appears to be present in the nebular filaments. The majority of the young stellar objects can be found to the north of the central starburst cluster R136. This region is very likely evolving into an OB association. The observations provide further evidence that star formation in the 30 Doradus region is very similar to Galactic star formation and confirm the presence of sequential star formation in 30 Doradus, with present-day star formation taking place in the arc of molecular gas to the north and west of the starburst cluster.
Fil: Brandner, Wolfgang. European Southern Observatory; Alemania. University of Hawaii at Manoa; Estados Unidos
Fil: Grebel, Eva K.. Max-Planck-Institut Astronomie; Alemania
Fil: Barba, Rodolfo Héctor. 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: Walborn, Nolan Revere. Space Telescope Science Institute; Estados Unidos
Fil: Moneti, Andrea. Institut D’astrophysique de Paris; Francia
description We present the detection of an intermediate-mass, pre-main-sequence population embedded in the nebular filaments surrounding the 30 Doradus region in the Large Magellanic Cloud (LMC) using HST/ NICMOS. In addition to four previously known luminous Class I infrared "protostars," the NICMOS data reveal 20 new sources with intrinsic infrared excess similar to Galactic pre-main-sequence stars. Based on their infrared brightness, these objects can be identified as the LMC equivalent of Galactic pre-main-sequence stars. The faintest LMC young stellar objects in the sample have colors similar to T Tauri stars and have about the same brightness as T Tauri stars if placed at the distance of the LMC. We find no evidence for a lower mass cutoff in the initial mass function. Instead, the whole spectrum of stellar masses from pre-main-sequence stars with ∼1.5 M⊙ to massive O stars still embedded in dense knots appears to be present in the nebular filaments. The majority of the young stellar objects can be found to the north of the central starburst cluster R136. This region is very likely evolving into an OB association. The observations provide further evidence that star formation in the 30 Doradus region is very similar to Galactic star formation and confirm the presence of sequential star formation in 30 Doradus, with present-day star formation taking place in the arc of molecular gas to the north and west of the starburst cluster.
publishDate 2001
dc.date.none.fl_str_mv 2001-12
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/11336/214200
Brandner, Wolfgang; Grebel, Eva K.; Barba, Rodolfo Héctor; Walborn, Nolan Revere; Moneti, Andrea; Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebula; IOP Publishing; Astronomical Journal; 122; 2; 12-2001; 858-865
0004-6256
CONICET Digital
CONICET
url http://hdl.handle.net/11336/214200
identifier_str_mv Brandner, Wolfgang; Grebel, Eva K.; Barba, Rodolfo Héctor; Walborn, Nolan Revere; Moneti, Andrea; Hubble space telescope nicmos detection of a partially embedded, intermediate-mass, pre-main-sequence population in the 30 doradus nebula; IOP Publishing; Astronomical Journal; 122; 2; 12-2001; 858-865
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/https://iopscience.iop.org/article/10.1086/322065
info:eu-repo/semantics/altIdentifier/doi/10.1086/322065
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
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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score 13.070432

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