New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars II. A grid of O-type stars in the Galaxy and the Magellanic Clouds

Accepted for publication in A&A. 16 pages, 13

Detalhes bibliográficos
Autores: Björklund, R., Sundqvist, J. O., Puls, J., Najarro, F.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Recursos:Instituto Nacional de Técnica Aeroespacial (INTA)
Repositorio:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
OAI Identifier:oai:digital.inta.es:20.500.12666/492
Acesso em linha:https://www.aanda.org/articles/aa/abs/2021/04/aa38384-20/aa38384-20.html
http://hdl.handle.net/20.500.12666/492
Access Level:acceso abierto
Palavra-chave:Stars: atmospheres
Stars: early type
Stars: massive
Stars: mass loss
Stars: winds
Outflows
Magellanic Clouds
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oai_identifier_str oai:digital.inta.es:20.500.12666/492
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars II. A grid of O-type stars in the Galaxy and the Magellanic Clouds
title New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars II. A grid of O-type stars in the Galaxy and the Magellanic Clouds
spellingShingle New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars II. A grid of O-type stars in the Galaxy and the Magellanic Clouds
Björklund, R.
Stars: atmospheres
Stars: early type
Stars: massive
Stars: mass loss
Stars: winds
Outflows
Magellanic Clouds
title_short New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars II. A grid of O-type stars in the Galaxy and the Magellanic Clouds
title_full New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars II. A grid of O-type stars in the Galaxy and the Magellanic Clouds
title_fullStr New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars II. A grid of O-type stars in the Galaxy and the Magellanic Clouds
title_full_unstemmed New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars II. A grid of O-type stars in the Galaxy and the Magellanic Clouds
title_sort New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars II. A grid of O-type stars in the Galaxy and the Magellanic Clouds
dc.creator.none.fl_str_mv Björklund, R.
Sundqvist, J. O.
Puls, J.
Najarro, F.
author Björklund, R.
author_facet Björklund, R.
Sundqvist, J. O.
Puls, J.
Najarro, F.
author_role author
author2 Sundqvist, J. O.
Puls, J.
Najarro, F.
author2_role author
author
author
dc.contributor.none.fl_str_mv Unidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737
Sundqvist, J. O. [0000-0003-1729-1273]
Agencia Estatal de Investigación (AEI)
dc.subject.none.fl_str_mv Stars: atmospheres
Stars: early type
Stars: massive
Stars: mass loss
Stars: winds
Outflows
Magellanic Clouds
topic Stars: atmospheres
Stars: early type
Stars: massive
Stars: mass loss
Stars: winds
Outflows
Magellanic Clouds
description Accepted for publication in A&A. 16 pages, 13
publishDate 2021
dc.date.none.fl_str_mv 2021
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.aanda.org/articles/aa/abs/2021/04/aa38384-20/aa38384-20.html
http://hdl.handle.net/20.500.12666/492
url https://www.aanda.org/articles/aa/abs/2021/04/aa38384-20/aa38384-20.html
http://hdl.handle.net/20.500.12666/492
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv CONTRIBUCION ESPAÑOLA A LAS MISIONES ESPACIALES CRIOGENICAS SPICA Y ATHENA, POST-OPERACIONES DE HERSCHEL Y EXPLOTACION CIENTIFICA MULTIFRECUENCIA
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2017-86582-C4-1-R
CONTRIBUCION DEL CAB A SPICA, DESARROLLO DE INSTRUMENTACION CRIOGENICA Y EXPLOTACION CIENTIFICA MULTILONGITUD DE ONDA
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-105552RB-C41
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
© ESO 2021
https://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
© ESO 2021
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
instname:Instituto Nacional de Técnica Aeroespacial (INTA)
instname_str Instituto Nacional de Técnica Aeroespacial (INTA)
reponame_str DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
collection DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869403785659416576
spelling New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars II. A grid of O-type stars in the Galaxy and the Magellanic CloudsBjörklund, R.Sundqvist, J. O.Puls, J.Najarro, F.Stars: atmospheresStars: early typeStars: massiveStars: mass lossStars: windsOutflowsMagellanic CloudsAccepted for publication in A&A. 16 pages, 13Context. Reliable predictions of mass-loss rates are important for massive-star evolution computations. Aims. We aim to provide predictions for mass-loss rates and wind-momentum rates of O-type stars, while carefully studying the behaviour of these winds as functions of stellar parameters, such as luminosity and metallicity. Methods. We used newly developed steady-state models of radiation-driven winds to compute the global properties of a grid of O-stars. The self-consistent models were calculated by means of an iterative solution to the equation of motion using full non-local thermodynamic equilibrium radiative transfer in the co-moving frame to compute the radiative acceleration. In order to study winds in different galactic environments, the grid covers main-sequence stars, giants, and supergiants in the Galaxy and both Magellanic Clouds. Results. We find a strong dependence of mass-loss on both luminosity and metallicity. Mean values across the grid are Ṁ~L*2.2 and Ṁ~L*0.95; however, we also find a somewhat stronger dependence on metallicity for lower luminosities. Similarly, the mass loss-luminosity relation is somewhat steeper for the Small Magellanic Cloud (SMC) than for the Galaxy. In addition, the computed rates are systematically lower (by a factor 2 and more) than those commonly used in stellar-evolution calculations. Overall, our results are in good agreement with observations in the Galaxy that properly account for wind-clumping, with empirical Ṁ versus Z* scaling relations and with observations of O-dwarfs in the SMC. Conclusions. Our results provide simple fit relations for mass-loss rates and wind momenta of massive O-stars stars as functions of luminosity and metallicity, which are valid in the range Teff = 28 000–45 000 K. Due to the systematically lower values for Ṁ, our new models suggest that new rates might be needed in evolution simulations of massive stars.R.B. and J.O.S. acknowledge support from the Odysseus programme of the Belgian Research Foundation Flanders (FWO) under grant G0H9218N. J.O.S. also acknowledges support from the KU Leuven C1 grant MAESTRO C16/17/007. F.N. acknowledges financial support through Spanish grants ESP2017-86582-C4-1-R and PID2019-105552RB-C41 (MINECO/MCIU/AEI/FEDER) and from the Spanish State Research Agency (AEI) through the Unidad de Excelencia Maria de Maeztu-Centro de Astrobiologia (CSIC-INTA) project No. MDM-2017-0737. We would also like to thank the referee for useful comments that led to additional improvements of the paper.PeerreviewEDP SciencesUnidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737Sundqvist, J. O. [0000-0003-1729-1273]Agencia Estatal de Investigación (AEI)202220222021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501application/pdfhttps://www.aanda.org/articles/aa/abs/2021/04/aa38384-20/aa38384-20.htmlhttp://hdl.handle.net/20.500.12666/492reponame:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacialinstname:Instituto Nacional de Técnica Aeroespacial (INTA)InglésCONTRIBUCION ESPAÑOLA A LAS MISIONES ESPACIALES CRIOGENICAS SPICA Y ATHENA, POST-OPERACIONES DE HERSCHEL Y EXPLOTACION CIENTIFICA MULTIFRECUENCIAinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2017-86582-C4-1-RCONTRIBUCION DEL CAB A SPICA, DESARROLLO DE INSTRUMENTACION CRIOGENICA Y EXPLOTACION CIENTIFICA MULTILONGITUD DE ONDAinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-105552RB-C41Attribution-NonCommercial-NoDerivatives 4.0 International© ESO 2021https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:digital.inta.es:20.500.12666/4922026-06-23T12:46:37Z
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