Dents in the Veil: protostellar feedback in Orion

17 pags., 18 figs., 3 tabs.

Detalles Bibliográficos
Autores: Kavak, U., Bally, John, Goicoechea, Javier R., Pabst, C.H.M., Van Der Tak, F.F.S., Tielens, A.G.G.M.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/285741
Acceso en línea:http://hdl.handle.net/10261/285741
Access Level:acceso abierto
Palabra clave:Stars: massive
ISM: bubbles
ISM: kinematics and dynamics
HII regions
ISM: jets and outflows
id ES_b649f110e94e5fa4c2d1cc624ec79f9a
oai_identifier_str oai:digital.csic.es:10261/285741
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Dents in the Veil: protostellar feedback in Orion
title Dents in the Veil: protostellar feedback in Orion
spellingShingle Dents in the Veil: protostellar feedback in Orion
Kavak, U.
Stars: massive
ISM: bubbles
ISM: kinematics and dynamics
HII regions
ISM: jets and outflows
title_short Dents in the Veil: protostellar feedback in Orion
title_full Dents in the Veil: protostellar feedback in Orion
title_fullStr Dents in the Veil: protostellar feedback in Orion
title_full_unstemmed Dents in the Veil: protostellar feedback in Orion
title_sort Dents in the Veil: protostellar feedback in Orion
dc.creator.none.fl_str_mv Kavak, U.
Bally, John
Goicoechea, Javier R.
Pabst, C.H.M.
Van Der Tak, F.F.S.
Tielens, A.G.G.M.
author Kavak, U.
author_facet Kavak, U.
Bally, John
Goicoechea, Javier R.
Pabst, C.H.M.
Van Der Tak, F.F.S.
Tielens, A.G.G.M.
author_role author
author2 Bally, John
Goicoechea, Javier R.
Pabst, C.H.M.
Van Der Tak, F.F.S.
Tielens, A.G.G.M.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Dutch Research Council
Ministerio de Ciencia e Innovación (España)
NASA
Universities Space Research Association (US)
University of Stuttgart
University of Cologne
Ames Research Center
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Stars: massive
ISM: bubbles
ISM: kinematics and dynamics
HII regions
ISM: jets and outflows
topic Stars: massive
ISM: bubbles
ISM: kinematics and dynamics
HII regions
ISM: jets and outflows
description 17 pags., 18 figs., 3 tabs.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/285741
url http://hdl.handle.net/10261/285741
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-106110GB-I00
http://dx.doi.org/10.1051/0004-6361/202243332
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
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
_version_ 1869417434696384512
spelling Dents in the Veil: protostellar feedback in OrionKavak, U.Bally, JohnGoicoechea, Javier R.Pabst, C.H.M.Van Der Tak, F.F.S.Tielens, A.G.G.M.Stars: massiveISM: bubblesISM: kinematics and dynamicsHII regionsISM: jets and outflows17 pags., 18 figs., 3 tabs.Context. Interest in stellar feedback has recently increased because new studies suggest that radiative and mechanical feedback from young massive stars significantly regulates the physical and chemical composition of the interstellar medium. Recent SOFIA [C ii] 158 μm observations of the Orion Veil have revealed that the expanding bubble is powered by stellar winds and influenced by previously active molecular outflows of ionizing massive stars. Aims. We aim to investigate the mechanical feedback on the whole Veil shell by searching for jets and outflows that interact with the Veil shell and by determining the driving mechanisms of these collisions. Methods. We make use of the [C ii] 158 μm map of the Orion Nebula taken with the upGREAT instrument on board SOFIA. We image the [C ii] emission of more extreme local standard of rest velocities (ILSR) between 3 and 20 km s1 to pinpoint the high-velocity structures. Using position-velocity (PV) diagrams and high-velocity [C ii] emission, we search for spots of shock-accelerated [C ii]-emitting gas, so called dents. At these positions, we extract [C ii] line profiles to identify velocity components. We also compare the intensity distribution of the [C ii] emission with that of 8 μm PAH and 70 μm warm dust emission to see if there is a trend among these PDR tracers and to understand the origin of the dents. Results. We identify six dents on the Veil shell, with sizes between 0.3 and 1.35 pc and expansion velocities ranging from 4 to 14 km s1, relative to the expanding Veil shell. The [C ii] line widths toward the dents vary from 4 to 16 km s1 indicating that the dents are the result of interaction of the highly turbulent motions (e.g., shocked gas) with the Veil shell. Moreover, dents appear only in the [C ii] PV diagram, not in the 12CO or HI 21 cm diagrams. Furthermore, the intensity distribution of the [C ii] emission of the dents has a tight correlation with that of the 8 and 70 μm as long as the Orion Molecular Cloud or the Veil do not dominate its emission. Also, the observed dents do not have CO counterpart emission. These results indicate that the dents are made up of CO-dark H2 gas. In light of these findings, as well as the momenta of the dents and their dynamical timescales, we propose that the dents are created by the interaction of collimated jets and outflows from protostars in the Orion star-forming cloud with luminosities ranging from 103 to 104 L-, which indicates that they are B-type stars, with the surrounding Veil shell. However, it is challenging to pinpoint the driving stars as they may have moved from the original ejection points of the jets and outflows. Conclusions. We conclude that the dynamics of the expanding Veil shell is influenced not just by the O-type stars in the Trapezium cluster, but also by less massive stars, especially B-type stars, in the Orion Nebula. Mechanical feedback from protostars with a range of masses appears to play an important role in determining the morphology of H II regions and injecting turbulence into the medium.Studies of interstellar dust and gas at Leiden Observatory are supported by a Spinoza award from the Dutch Science agency, NWO. J.R.G. thanks the Spanish MICINN for funding support under grant PID2019-106110GB-I00. This study was based on observations made with the NASA/DLR Stratospheric Observatory for Infrared Astronomy (SOFIA). SOFIA is jointly operated by the Universities Space Research Association Inc. (USRA), under NASA contract NAS2-97001, and the Deutsches SOFIA Institut (DSI), under DLR contract 50 OK 0901 to the University of Stuttgart. upGREAT is a development by the MPI für Radioastronomie and the KOSMA/Universität zu Köln, in cooperation with the DLR Institut für Optische Sensorsysteme. We acknowledge the work, during the C+ upGREAT square degree survey of Orion, of the USRA and NASA staff of the Armstrong Flight Research Center in Palmdale, the Ames Research Center in Mountain View (California), and the Deutsches SOFIA Institut.Springer NatureDutch Research CouncilMinisterio de Ciencia e Innovación (España)NASAUniversities Space Research Association (US)University of StuttgartUniversity of CologneAmes Research CenterConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/285741reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-106110GB-I00http://dx.doi.org/10.1051/0004-6361/202243332Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2857412026-05-22T06:33:51Z
score 15,81155

Similares en LA Referencia