Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud

Autores
Fernandez Lopez, Manuel; Arce, H. G.; Looney, Leslie W.; Mundy, Lee G.; Storm, S.; Teuben, P. J.; Lee, K.; Segura Cox, Dominique M.; Isella, A.; Tobin, John J.; Rosolowsky, E.; Plunkett, A.; Kwon, Woojin; Kauffmann, J.; Ostriker, E.; Tassis, K.; Shirley, Y. L.; Pound, M.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the N2H+ (J = 1 → 0) map of the Serpens South molecular cloud obtained as part of the CARMA Large Area Star Formation Survey. The observations cover 250 arcmin2 and fully sample structures from 3000 AU to 3 pc with a velocity resolution of 0.16 km s−1, and they can be used to constrain the origin and evolution of molecular cloud filaments. The spatial distribution of the N2H+ emission is characterized by long filaments that resemble those observed in the dust continuum emission by Herschel. However, the gas filaments are typically narrower such that, in some cases, two or three quasi-parallel N2H+ filaments comprise a single observed dust continuum filament. The difference between the dust and gas filament widths casts doubt on Herschel ability to resolve the Serpens South filaments. Some molecular filaments show velocity gradients along their major axis, and two are characterized by a steep velocity gradient in the direction perpendicular to the filament axis. The observed velocity gradient along one of these filaments was previously postulated as evidence for mass infall toward the central cluster, but these kind of gradients can be interpreted as projection of large-scale turbulence.
Fil: Fernandez Lopez, Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto Argentino de Radioastronomia (i); Argentina
Fil: Arce, H. G.. Yale University. Department of Astronomy; Estados Unidos
Fil: Looney, Leslie W.. University of Illinois, Urbana. Department of Astronomy; Estados Unidos
Fil: Mundy, Lee G.. University of Maryland. Department of Astronomy; Estados Unidos
Fil: Storm, S.. University of Maryland. Department of Astronomy; Estados Unidos
Fil: Teuben, P. J. . University of Maryland. Department of Astronomy; Estados Unidos
Fil: Lee, K.. University of Illinois, Urbana. Department of Astronomy; Estados Unidos
Fil: Segura Cox, Dominique M.. University of Illinois, Urbana. Department of Astronomy; Estados Unidos
Fil: Isella, A.. California Institute of Technology. Astronomy Department; Estados Unidos
Fil: Tobin, John J.. National Radio Astronomy Observatory; Estados Unidos
Fil: Rosolowsky, E.. University of British Columbia. Departments of Physics and Statistics; Canadá
Fil: Plunkett, A. . Yale University. Department of Astronomy; Estados Unidos
Fil: Kwon, Woojin. SRON Netherlands Institute for Space Research; Países Bajos
Fil: Kauffmann, J.. California Institute of Technology. Astronomy Department; Estados Unidos
Fil: Ostriker, E. . Princeton University. Department of Astrophysical Sciences; Estados Unidos
Fil: Tassis, K.. University of Crete. Department of Physics and Institute of Theoretical and Computational Physics; Grecia
Fil: Shirley, Y. L.. Steward Observatory; Estados Unidos
Fil: Pound, M.. University of Maryland. Department of Astronomy; Estados Unidos
Materia
Filaments
Interstellar medium
Star formation
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:11336/7252
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/7252
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloudFernandez Lopez, ManuelArce, H. G.Looney, Leslie W.Mundy, Lee G.Storm, S.Teuben, P. J. Lee, K.Segura Cox, Dominique M.Isella, A.Tobin, John J.Rosolowsky, E.Plunkett, A. Kwon, WoojinKauffmann, J.Ostriker, E. Tassis, K.Shirley, Y. L.Pound, M.FilamentsInterstellar mediumStar formationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present the N2H+ (J = 1 → 0) map of the Serpens South molecular cloud obtained as part of the CARMA Large Area Star Formation Survey. The observations cover 250 arcmin2 and fully sample structures from 3000 AU to 3 pc with a velocity resolution of 0.16 km s−1, and they can be used to constrain the origin and evolution of molecular cloud filaments. The spatial distribution of the N2H+ emission is characterized by long filaments that resemble those observed in the dust continuum emission by Herschel. However, the gas filaments are typically narrower such that, in some cases, two or three quasi-parallel N2H+ filaments comprise a single observed dust continuum filament. The difference between the dust and gas filament widths casts doubt on Herschel ability to resolve the Serpens South filaments. Some molecular filaments show velocity gradients along their major axis, and two are characterized by a steep velocity gradient in the direction perpendicular to the filament axis. The observed velocity gradient along one of these filaments was previously postulated as evidence for mass infall toward the central cluster, but these kind of gradients can be interpreted as projection of large-scale turbulence.Fil: Fernandez Lopez, Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto Argentino de Radioastronomia (i); ArgentinaFil: Arce, H. G.. Yale University. Department of Astronomy; Estados UnidosFil: Looney, Leslie W.. University of Illinois, Urbana. Department of Astronomy; Estados UnidosFil: Mundy, Lee G.. University of Maryland. Department of Astronomy; Estados UnidosFil: Storm, S.. University of Maryland. Department of Astronomy; Estados UnidosFil: Teuben, P. J. . University of Maryland. Department of Astronomy; Estados UnidosFil: Lee, K.. University of Illinois, Urbana. Department of Astronomy; Estados UnidosFil: Segura Cox, Dominique M.. University of Illinois, Urbana. Department of Astronomy; Estados UnidosFil: Isella, A.. California Institute of Technology. Astronomy Department; Estados UnidosFil: Tobin, John J.. National Radio Astronomy Observatory; Estados UnidosFil: Rosolowsky, E.. University of British Columbia. Departments of Physics and Statistics; CanadáFil: Plunkett, A. . Yale University. Department of Astronomy; Estados UnidosFil: Kwon, Woojin. SRON Netherlands Institute for Space Research; Países BajosFil: Kauffmann, J.. California Institute of Technology. Astronomy Department; Estados UnidosFil: Ostriker, E. . Princeton University. Department of Astrophysical Sciences; Estados UnidosFil: Tassis, K.. University of Crete. Department of Physics and Institute of Theoretical and Computational Physics; GreciaFil: Shirley, Y. L.. Steward Observatory; Estados UnidosFil: Pound, M.. University of Maryland. Department of Astronomy; Estados UnidosIop Publishing2014-08info: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/11336/7252Fernandez Lopez, Manuel; Arce, H. G.; Looney, Leslie W.; Mundy, Lee G.; Storm, S.; et al.; Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud; Iop Publishing; Astrophysical Journal; 790; 2; 8-2014; L190004-637Xenginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/2041-8205/790/2/L19/metainfo:eu-repo/semantics/altIdentifier/url/http://arxiv.org/abs/1407.0755info:eu-repo/semantics/altIdentifier/arxiv/1407.0755info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1088/2041-8205/790/2/L19info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:53:21Zoai:ri.conicet.gov.ar:11336/7252instacron: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 09:53:21.567CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud
title Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud
spellingShingle Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud
Fernandez Lopez, Manuel
Filaments
Interstellar medium
Star formation
title_short Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud
title_full Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud
title_fullStr Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud
title_full_unstemmed Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud
title_sort Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud
dc.creator.none.fl_str_mv Fernandez Lopez, Manuel
Arce, H. G.
Looney, Leslie W.
Mundy, Lee G.
Storm, S.
Teuben, P. J.
Lee, K.
Segura Cox, Dominique M.
Isella, A.
Tobin, John J.
Rosolowsky, E.
Plunkett, A.
Kwon, Woojin
Kauffmann, J.
Ostriker, E.
Tassis, K.
Shirley, Y. L.
Pound, M.
author Fernandez Lopez, Manuel
author_facet Fernandez Lopez, Manuel
Arce, H. G.
Looney, Leslie W.
Mundy, Lee G.
Storm, S.
Teuben, P. J.
Lee, K.
Segura Cox, Dominique M.
Isella, A.
Tobin, John J.
Rosolowsky, E.
Plunkett, A.
Kwon, Woojin
Kauffmann, J.
Ostriker, E.
Tassis, K.
Shirley, Y. L.
Pound, M.
author_role author
author2 Arce, H. G.
Looney, Leslie W.
Mundy, Lee G.
Storm, S.
Teuben, P. J.
Lee, K.
Segura Cox, Dominique M.
Isella, A.
Tobin, John J.
Rosolowsky, E.
Plunkett, A.
Kwon, Woojin
Kauffmann, J.
Ostriker, E.
Tassis, K.
Shirley, Y. L.
Pound, M.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Filaments
Interstellar medium
Star formation
topic Filaments
Interstellar medium
Star formation
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 N2H+ (J = 1 → 0) map of the Serpens South molecular cloud obtained as part of the CARMA Large Area Star Formation Survey. The observations cover 250 arcmin2 and fully sample structures from 3000 AU to 3 pc with a velocity resolution of 0.16 km s−1, and they can be used to constrain the origin and evolution of molecular cloud filaments. The spatial distribution of the N2H+ emission is characterized by long filaments that resemble those observed in the dust continuum emission by Herschel. However, the gas filaments are typically narrower such that, in some cases, two or three quasi-parallel N2H+ filaments comprise a single observed dust continuum filament. The difference between the dust and gas filament widths casts doubt on Herschel ability to resolve the Serpens South filaments. Some molecular filaments show velocity gradients along their major axis, and two are characterized by a steep velocity gradient in the direction perpendicular to the filament axis. The observed velocity gradient along one of these filaments was previously postulated as evidence for mass infall toward the central cluster, but these kind of gradients can be interpreted as projection of large-scale turbulence.
Fil: Fernandez Lopez, Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto Argentino de Radioastronomia (i); Argentina
Fil: Arce, H. G.. Yale University. Department of Astronomy; Estados Unidos
Fil: Looney, Leslie W.. University of Illinois, Urbana. Department of Astronomy; Estados Unidos
Fil: Mundy, Lee G.. University of Maryland. Department of Astronomy; Estados Unidos
Fil: Storm, S.. University of Maryland. Department of Astronomy; Estados Unidos
Fil: Teuben, P. J. . University of Maryland. Department of Astronomy; Estados Unidos
Fil: Lee, K.. University of Illinois, Urbana. Department of Astronomy; Estados Unidos
Fil: Segura Cox, Dominique M.. University of Illinois, Urbana. Department of Astronomy; Estados Unidos
Fil: Isella, A.. California Institute of Technology. Astronomy Department; Estados Unidos
Fil: Tobin, John J.. National Radio Astronomy Observatory; Estados Unidos
Fil: Rosolowsky, E.. University of British Columbia. Departments of Physics and Statistics; Canadá
Fil: Plunkett, A. . Yale University. Department of Astronomy; Estados Unidos
Fil: Kwon, Woojin. SRON Netherlands Institute for Space Research; Países Bajos
Fil: Kauffmann, J.. California Institute of Technology. Astronomy Department; Estados Unidos
Fil: Ostriker, E. . Princeton University. Department of Astrophysical Sciences; Estados Unidos
Fil: Tassis, K.. University of Crete. Department of Physics and Institute of Theoretical and Computational Physics; Grecia
Fil: Shirley, Y. L.. Steward Observatory; Estados Unidos
Fil: Pound, M.. University of Maryland. Department of Astronomy; Estados Unidos
description We present the N2H+ (J = 1 → 0) map of the Serpens South molecular cloud obtained as part of the CARMA Large Area Star Formation Survey. The observations cover 250 arcmin2 and fully sample structures from 3000 AU to 3 pc with a velocity resolution of 0.16 km s−1, and they can be used to constrain the origin and evolution of molecular cloud filaments. The spatial distribution of the N2H+ emission is characterized by long filaments that resemble those observed in the dust continuum emission by Herschel. However, the gas filaments are typically narrower such that, in some cases, two or three quasi-parallel N2H+ filaments comprise a single observed dust continuum filament. The difference between the dust and gas filament widths casts doubt on Herschel ability to resolve the Serpens South filaments. Some molecular filaments show velocity gradients along their major axis, and two are characterized by a steep velocity gradient in the direction perpendicular to the filament axis. The observed velocity gradient along one of these filaments was previously postulated as evidence for mass infall toward the central cluster, but these kind of gradients can be interpreted as projection of large-scale turbulence.
publishDate 2014
dc.date.none.fl_str_mv 2014-08
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/11336/7252
Fernandez Lopez, Manuel; Arce, H. G.; Looney, Leslie W.; Mundy, Lee G.; Storm, S.; et al.; Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud; Iop Publishing; Astrophysical Journal; 790; 2; 8-2014; L19
0004-637X
url http://hdl.handle.net/11336/7252
identifier_str_mv Fernandez Lopez, Manuel; Arce, H. G.; Looney, Leslie W.; Mundy, Lee G.; Storm, S.; et al.; Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud; Iop Publishing; Astrophysical Journal; 790; 2; 8-2014; L19
0004-637X
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/10.1088/2041-8205/790/2/L19/meta
info:eu-repo/semantics/altIdentifier/url/http://arxiv.org/abs/1407.0755
info:eu-repo/semantics/altIdentifier/arxiv/1407.0755
info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1088/2041-8205/790/2/L19
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
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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