Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motions

Context. The first Gaia Data Release (DR1) significantly improved the previously available proper motions for the majority of the Tycho-2 stars. Aims: We wish to detect runaway stars using Gaia DR1 proper motions and compare our results with previous searches. Methods: Runaway O stars and BA supergi...

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Autores: Maíz Apellániz, Jesús, Pantaleoni González, M., Barbá, R. H., Simón-Díaz, S., Negueruela, I., Lennon, D. J., Sota Ballano, Alfredo, Trigueros Páez, E.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/182972
Acceso en línea:http://hdl.handle.net/10261/182972
Access Level:acceso abierto
Palabra clave:Proper motions
Surveys
Supergiants
Stars: kinematics and dynamics
Stars: early-type
Galaxy: structure
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spelling Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motionsMaíz Apellániz, JesúsPantaleoni González, M.Barbá, R. H.Simón-Díaz, S.Negueruela, I.Lennon, D. J.Sota Ballano, AlfredoTrigueros Páez, E.Proper motionsSurveysSupergiantsStars: kinematics and dynamicsStars: early-typeGalaxy: structureContext. The first Gaia Data Release (DR1) significantly improved the previously available proper motions for the majority of the Tycho-2 stars. Aims: We wish to detect runaway stars using Gaia DR1 proper motions and compare our results with previous searches. Methods: Runaway O stars and BA supergiants were detected using a 2D proper motion method. The sample was selected using Simbad, spectra from our GOSSS project, literature spectral types, and photometry processed using the code CHORIZOS. Results: We detect 76 runaway stars, 17 (possibly 19) of them with no prior identification as such, with an estimated detection rate of approximately one half of the real runaway fraction. An age effect appears to be present, with objects of spectral subtype B1 and later having traveled for longer distances than runaways of earlier subtypes. We also tentatively propose that the fraction of runaways is lower among BA supergiants that among O stars, but further studies using future Gaia data releases are needed to confirm this. The frequency of fast rotators is high among runaway O stars, which indicates that a significant fraction of them (and possibly the majority) is produced in supernova explosions. The spectral types in Table 2 will be added to the spectral types in the three GOSSS survey papers and in Maíz Apellániz et al. (2018 and the resulting table will be available from the GOSC web site http://gosc.cab.inta-csic.es.© ESO 2018J.M.A., A.S., and E.T.P. acknowledge support from the Spanish Government Ministerio de Economia, Industria y Competitividad (MINECO/FEDER) through grant No. AYA2016-75931-C2-2-P. M.P.G. acknowledges support from the ESAC Trainee program. R.H.B. acknowledges support from the ESAC Faculty Council Visitor Program. S.S.-D., I.N., and E.T.P. acknowledge support from the Spanish Government Ministerio de Economia, Industria y Competitividad (MINECO/FEDER) through grant No. AYA2015-68012-C2-1/2-P.Peer ReviewedEDP SciencesEuropean CommissionMinisterio de Economía, Industria y Competitividad (España)European Space AgencyConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920182019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/182972reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2016-75931-C2-2-Pinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2015-68012-C2-1Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1829722026-05-22T06:33:51Z
dc.title.none.fl_str_mv Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motions
title Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motions
spellingShingle Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motions
Maíz Apellániz, Jesús
Proper motions
Surveys
Supergiants
Stars: kinematics and dynamics
Stars: early-type
Galaxy: structure
title_short Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motions
title_full Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motions
title_fullStr Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motions
title_full_unstemmed Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motions
title_sort Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motions
dc.creator.none.fl_str_mv Maíz Apellániz, Jesús
Pantaleoni González, M.
Barbá, R. H.
Simón-Díaz, S.
Negueruela, I.
Lennon, D. J.
Sota Ballano, Alfredo
Trigueros Páez, E.
author Maíz Apellániz, Jesús
author_facet Maíz Apellániz, Jesús
Pantaleoni González, M.
Barbá, R. H.
Simón-Díaz, S.
Negueruela, I.
Lennon, D. J.
Sota Ballano, Alfredo
Trigueros Páez, E.
author_role author
author2 Pantaleoni González, M.
Barbá, R. H.
Simón-Díaz, S.
Negueruela, I.
Lennon, D. J.
Sota Ballano, Alfredo
Trigueros Páez, E.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministerio de Economía, Industria y Competitividad (España)
European Space Agency
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Proper motions
Surveys
Supergiants
Stars: kinematics and dynamics
Stars: early-type
Galaxy: structure
topic Proper motions
Surveys
Supergiants
Stars: kinematics and dynamics
Stars: early-type
Galaxy: structure
description Context. The first Gaia Data Release (DR1) significantly improved the previously available proper motions for the majority of the Tycho-2 stars. Aims: We wish to detect runaway stars using Gaia DR1 proper motions and compare our results with previous searches. Methods: Runaway O stars and BA supergiants were detected using a 2D proper motion method. The sample was selected using Simbad, spectra from our GOSSS project, literature spectral types, and photometry processed using the code CHORIZOS. Results: We detect 76 runaway stars, 17 (possibly 19) of them with no prior identification as such, with an estimated detection rate of approximately one half of the real runaway fraction. An age effect appears to be present, with objects of spectral subtype B1 and later having traveled for longer distances than runaways of earlier subtypes. We also tentatively propose that the fraction of runaways is lower among BA supergiants that among O stars, but further studies using future Gaia data releases are needed to confirm this. The frequency of fast rotators is high among runaway O stars, which indicates that a significant fraction of them (and possibly the majority) is produced in supernova explosions. The spectral types in Table 2 will be added to the spectral types in the three GOSSS survey papers and in Maíz Apellániz et al. (2018 and the resulting table will be available from the GOSC web site http://gosc.cab.inta-csic.es.© ESO 2018
publishDate 2018
dc.date.none.fl_str_mv 2018
2019
2019
2019
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/10261/182972
url http://hdl.handle.net/10261/182972
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#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2016-75931-C2-2-P
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2015-68012-C2-1
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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 15,812455

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