X-ray embedded stars as driving sources of outflow-driven turbulence in OMC1-S

Outflows arising from very young stars affect their surroundings and influence the star formation in the parental core. Multiple molecular outflows and Herbig-Haro (HH) objects have been observed in Orion, many of them originating from the embedded massive star-forming region known as OMC1-S. The de...

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Detalhes bibliográficos
Autores: Rivilla, V. M., Martín-Pintado, J., Sanz-Forcada, J., Jiménez-Serra, I., Rodríguez-Franco, A.
Tipo de documento: artigo
Estado:Versión enviada para evaluación y publicación
Data de publicação:2013
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/415944
Acesso em linha:http://hdl.handle.net/10261/415944
http://arxiv.org/abs/1307.5283v1
Access Level:Acceso aberto
Palavra-chave:astro-ph.GA
Formation-stars
Jets and outflows-X-rays
Massive-stars
Pre-main sequence-ISM
Stars
Turbulence-stars
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oai_identifier_str oai:digital.csic.es:10261/415944
network_acronym_str ES
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repository_id_str
spelling X-ray embedded stars as driving sources of outflow-driven turbulence in OMC1-SRivilla, V. M.Martín-Pintado, J.Sanz-Forcada, J.Jiménez-Serra, I.Rodríguez-Franco, A.astro-ph.GAFormation-starsJets and outflows-X-raysMassive-starsPre-main sequence-ISMStarsTurbulence-starsOutflows arising from very young stars affect their surroundings and influence the star formation in the parental core. Multiple molecular outflows and Herbig-Haro (HH) objects have been observed in Orion, many of them originating from the embedded massive star-forming region known as OMC1-S. The detection of the outflow driving sources is commonly difficult, because they are still hidden behind large extinction, preventing their direct observation at optical and even near and mid-IR wavelengths. With the aim of improving the identification of the driving sources of the multiple outflows detected in OMC1-S, we used the catalog provided by deep X-ray observations, which have unveiled the very embedded population of pre-main sequence stars. We compared the position of stars observed by the Chandra Orion Ultra Deep project (COUP) in OMC1-S with the morphology of the molecular outflows and the directions of measured proper motions of HH optical objects. We find that 6 out of 7 molecular outflows reported in OMC1-S (detection rate of 86 %) have an extincted X-ray COUP star located at the expected position of the driving source. In several cases, X-rays detected the possible driving sources for the first time. This clustered embedded population revealed by Chandra is very young, with an estimated average age of few 10^{5} yr. It is also likely responsible for the multiple HH objects, which are the optical correspondence of flows arising from the cloud. We show that the molecular outflows driven by the members of the OMC1-S cluster can account for the observed turbulence at core-scales and regulate the star formation efficiency. We discuss the effects of outflow feedback in the formation of massive stars, concluding that the injected turbulence in OMC1-S is compatible with a competitive accretion scenario.We thank the referee, Dr Thomas Stanke, for his critical read ing of the original version of this paper and his helpful sugges tions. This work has been partially funded by MICINN grants AYA2010-21697-C05-01 and FIS2012-39162-C06-01, and Astro Madrid (CAM S2009/ESP-1496) and CSIC grant JAE-Predoc2008. IJ-S acknowledges the funding received from the People Pro gramme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007-2013) under REA grant agree ment number PIIF-GA-2011-301538.NoRoyal Astronomical SocietyMinisterio de Ciencia e Innovación (España)Comunidad de MadridConsejo Superior de Investigaciones Científicas (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262013info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Preprintinfo:eu-repo/semantics/submittedVersionapplication/pdfhttp://hdl.handle.net/10261/415944http://arxiv.org/abs/1307.5283v1reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MICINN//AYA2010-21697-C05-01info:eu-repo/grantAgreement/MINECO//FIS2012-39162-C06-01CAM S2009/ESP-1496info:eu-repo/grantAgreement/EC/FP7/2007-2013https://doi.org/10.1093/mnras/stt1173Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4159442026-05-22T06:33:51Z
dc.title.none.fl_str_mv X-ray embedded stars as driving sources of outflow-driven turbulence in OMC1-S
title X-ray embedded stars as driving sources of outflow-driven turbulence in OMC1-S
spellingShingle X-ray embedded stars as driving sources of outflow-driven turbulence in OMC1-S
Rivilla, V. M.
astro-ph.GA
Formation-stars
Jets and outflows-X-rays
Massive-stars
Pre-main sequence-ISM
Stars
Turbulence-stars
title_short X-ray embedded stars as driving sources of outflow-driven turbulence in OMC1-S
title_full X-ray embedded stars as driving sources of outflow-driven turbulence in OMC1-S
title_fullStr X-ray embedded stars as driving sources of outflow-driven turbulence in OMC1-S
title_full_unstemmed X-ray embedded stars as driving sources of outflow-driven turbulence in OMC1-S
title_sort X-ray embedded stars as driving sources of outflow-driven turbulence in OMC1-S
dc.creator.none.fl_str_mv Rivilla, V. M.
Martín-Pintado, J.
Sanz-Forcada, J.
Jiménez-Serra, I.
Rodríguez-Franco, A.
author Rivilla, V. M.
author_facet Rivilla, V. M.
Martín-Pintado, J.
Sanz-Forcada, J.
Jiménez-Serra, I.
Rodríguez-Franco, A.
author_role author
author2 Martín-Pintado, J.
Sanz-Forcada, J.
Jiménez-Serra, I.
Rodríguez-Franco, A.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Comunidad de Madrid
Consejo Superior de Investigaciones Científicas (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv astro-ph.GA
Formation-stars
Jets and outflows-X-rays
Massive-stars
Pre-main sequence-ISM
Stars
Turbulence-stars
topic astro-ph.GA
Formation-stars
Jets and outflows-X-rays
Massive-stars
Pre-main sequence-ISM
Stars
Turbulence-stars
description Outflows arising from very young stars affect their surroundings and influence the star formation in the parental core. Multiple molecular outflows and Herbig-Haro (HH) objects have been observed in Orion, many of them originating from the embedded massive star-forming region known as OMC1-S. The detection of the outflow driving sources is commonly difficult, because they are still hidden behind large extinction, preventing their direct observation at optical and even near and mid-IR wavelengths. With the aim of improving the identification of the driving sources of the multiple outflows detected in OMC1-S, we used the catalog provided by deep X-ray observations, which have unveiled the very embedded population of pre-main sequence stars. We compared the position of stars observed by the Chandra Orion Ultra Deep project (COUP) in OMC1-S with the morphology of the molecular outflows and the directions of measured proper motions of HH optical objects. We find that 6 out of 7 molecular outflows reported in OMC1-S (detection rate of 86 %) have an extincted X-ray COUP star located at the expected position of the driving source. In several cases, X-rays detected the possible driving sources for the first time. This clustered embedded population revealed by Chandra is very young, with an estimated average age of few 10^{5} yr. It is also likely responsible for the multiple HH objects, which are the optical correspondence of flows arising from the cloud. We show that the molecular outflows driven by the members of the OMC1-S cluster can account for the observed turbulence at core-scales and regulate the star formation efficiency. We discuss the effects of outflow feedback in the formation of massive stars, concluding that the injected turbulence in OMC1-S is compatible with a competitive accretion scenario.
publishDate 2013
dc.date.none.fl_str_mv 2013
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Preprint
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/415944
http://arxiv.org/abs/1307.5283v1
url http://hdl.handle.net/10261/415944
http://arxiv.org/abs/1307.5283v1
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MICINN//AYA2010-21697-C05-01
info:eu-repo/grantAgreement/MINECO//FIS2012-39162-C06-01
CAM S2009/ESP-1496
info:eu-repo/grantAgreement/EC/FP7/2007-2013
https://doi.org/10.1093/mnras/stt1173
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Royal Astronomical Society
publisher.none.fl_str_mv Royal Astronomical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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