A close encounter of the massive kind

Autores
Maíz Apellániz, Jesús; Sana, H.; Barba, Rodolfo Hector; Le Bouquin, J.B.; Gamen, Roberto Claudio
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have used (a) HST ACS imaging and STIS spectroscopy, (b) ground-basedPIONIER/VLT long-baseline interferometry, and (c) ground-basedspectroscopy from different instruments to study the orbit of theextreme multiple system HD 93 129 Aa,Ab, which is composed of (at least)two very massive stars in a long-period orbit with e>0.92 that willpass through periastron in 2017/2018. In several ways, the system is aneta Car precursor. Around the time of periastron passage the two verystrong winds will collide and generate an outburst of non-thermal hardX-ray emission without precedent in an O+O binary since astronomers havebeen able to observe above Earth's atmosphere. A coordinatedmultiwavelength monitoring in the next two years will enable abreakthrough understanding of the wind interactions in such extremeclose encounters. Furthermore, we have found evidence that HD 93 129 Aamay be a binary system itself. In that case, we could witness athree-body interaction that may yield a runaway star or a stellarcollision close to or shortly after the periastron passage. Either ofthose outcomes would be unprecedented, as they are predicted to below-frequency events in the Milky Way.
Fil: Maíz Apellániz, Jesús. Centro de Astrobiología; España
Fil: Sana, H.. Institute of Astronomy, KU Leuven; Bélgica
Fil: Barba, Rodolfo Hector. Universidad de La Serena; Chile
Fil: Le Bouquin, J.B.. Institut de Planetologie et d’Astrophysique de Grenoble; Francia
Fil: Gamen, Roberto Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Materia
Ephemerides
Binaries: Visual
Stars: Individual: Hd 93 129 Aa,Ab
Stars: Kinematics And Dynamics
Stars: Winds, Outflows
X-Rays: Stars.
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:11336/84292
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A close encounter of the massive kindMaíz Apellániz, JesúsSana, H.Barba, Rodolfo HectorLe Bouquin, J.B.Gamen, Roberto ClaudioEphemeridesBinaries: VisualStars: Individual: Hd 93 129 Aa,AbStars: Kinematics And DynamicsStars: Winds, OutflowsX-Rays: Stars.https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We have used (a) HST ACS imaging and STIS spectroscopy, (b) ground-basedPIONIER/VLT long-baseline interferometry, and (c) ground-basedspectroscopy from different instruments to study the orbit of theextreme multiple system HD 93 129 Aa,Ab, which is composed of (at least)two very massive stars in a long-period orbit with e>0.92 that willpass through periastron in 2017/2018. In several ways, the system is aneta Car precursor. Around the time of periastron passage the two verystrong winds will collide and generate an outburst of non-thermal hardX-ray emission without precedent in an O+O binary since astronomers havebeen able to observe above Earth's atmosphere. A coordinatedmultiwavelength monitoring in the next two years will enable abreakthrough understanding of the wind interactions in such extremeclose encounters. Furthermore, we have found evidence that HD 93 129 Aamay be a binary system itself. In that case, we could witness athree-body interaction that may yield a runaway star or a stellarcollision close to or shortly after the periastron passage. Either ofthose outcomes would be unprecedented, as they are predicted to below-frequency events in the Milky Way.Fil: Maíz Apellániz, Jesús. Centro de Astrobiología; EspañaFil: Sana, H.. Institute of Astronomy, KU Leuven; BélgicaFil: Barba, Rodolfo Hector. Universidad de La Serena; ChileFil: Le Bouquin, J.B.. Institut de Planetologie et d’Astrophysique de Grenoble; FranciaFil: Gamen, Roberto Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaWiley Blackwell Publishing, Inc2017-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/84292Maíz Apellániz, Jesús; Sana, H.; Barba, Rodolfo Hector; Le Bouquin, J.B.; Gamen, Roberto Claudio; A close encounter of the massive kind; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 464; 1-2017; 3561-35680035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stw2618info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/464/3/3561/2514582info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:11:49Zoai:ri.conicet.gov.ar:11336/84292instacron: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:34982025-09-10 13:11:49.329CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A close encounter of the massive kind
title A close encounter of the massive kind
spellingShingle A close encounter of the massive kind
Maíz Apellániz, Jesús
Ephemerides
Binaries: Visual
Stars: Individual: Hd 93 129 Aa,Ab
Stars: Kinematics And Dynamics
Stars: Winds, Outflows
X-Rays: Stars.
title_short A close encounter of the massive kind
title_full A close encounter of the massive kind
title_fullStr A close encounter of the massive kind
title_full_unstemmed A close encounter of the massive kind
title_sort A close encounter of the massive kind
dc.creator.none.fl_str_mv Maíz Apellániz, Jesús
Sana, H.
Barba, Rodolfo Hector
Le Bouquin, J.B.
Gamen, Roberto Claudio
author Maíz Apellániz, Jesús
author_facet Maíz Apellániz, Jesús
Sana, H.
Barba, Rodolfo Hector
Le Bouquin, J.B.
Gamen, Roberto Claudio
author_role author
author2 Sana, H.
Barba, Rodolfo Hector
Le Bouquin, J.B.
Gamen, Roberto Claudio
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ephemerides
Binaries: Visual
Stars: Individual: Hd 93 129 Aa,Ab
Stars: Kinematics And Dynamics
Stars: Winds, Outflows
X-Rays: Stars.
topic Ephemerides
Binaries: Visual
Stars: Individual: Hd 93 129 Aa,Ab
Stars: Kinematics And Dynamics
Stars: Winds, Outflows
X-Rays: Stars.
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 have used (a) HST ACS imaging and STIS spectroscopy, (b) ground-basedPIONIER/VLT long-baseline interferometry, and (c) ground-basedspectroscopy from different instruments to study the orbit of theextreme multiple system HD 93 129 Aa,Ab, which is composed of (at least)two very massive stars in a long-period orbit with e>0.92 that willpass through periastron in 2017/2018. In several ways, the system is aneta Car precursor. Around the time of periastron passage the two verystrong winds will collide and generate an outburst of non-thermal hardX-ray emission without precedent in an O+O binary since astronomers havebeen able to observe above Earth's atmosphere. A coordinatedmultiwavelength monitoring in the next two years will enable abreakthrough understanding of the wind interactions in such extremeclose encounters. Furthermore, we have found evidence that HD 93 129 Aamay be a binary system itself. In that case, we could witness athree-body interaction that may yield a runaway star or a stellarcollision close to or shortly after the periastron passage. Either ofthose outcomes would be unprecedented, as they are predicted to below-frequency events in the Milky Way.
Fil: Maíz Apellániz, Jesús. Centro de Astrobiología; España
Fil: Sana, H.. Institute of Astronomy, KU Leuven; Bélgica
Fil: Barba, Rodolfo Hector. Universidad de La Serena; Chile
Fil: Le Bouquin, J.B.. Institut de Planetologie et d’Astrophysique de Grenoble; Francia
Fil: Gamen, Roberto Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
description We have used (a) HST ACS imaging and STIS spectroscopy, (b) ground-basedPIONIER/VLT long-baseline interferometry, and (c) ground-basedspectroscopy from different instruments to study the orbit of theextreme multiple system HD 93 129 Aa,Ab, which is composed of (at least)two very massive stars in a long-period orbit with e>0.92 that willpass through periastron in 2017/2018. In several ways, the system is aneta Car precursor. Around the time of periastron passage the two verystrong winds will collide and generate an outburst of non-thermal hardX-ray emission without precedent in an O+O binary since astronomers havebeen able to observe above Earth's atmosphere. A coordinatedmultiwavelength monitoring in the next two years will enable abreakthrough understanding of the wind interactions in such extremeclose encounters. Furthermore, we have found evidence that HD 93 129 Aamay be a binary system itself. In that case, we could witness athree-body interaction that may yield a runaway star or a stellarcollision close to or shortly after the periastron passage. Either ofthose outcomes would be unprecedented, as they are predicted to below-frequency events in the Milky Way.
publishDate 2017
dc.date.none.fl_str_mv 2017-01
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/11336/84292
Maíz Apellániz, Jesús; Sana, H.; Barba, Rodolfo Hector; Le Bouquin, J.B.; Gamen, Roberto Claudio; A close encounter of the massive kind; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 464; 1-2017; 3561-3568
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/84292
identifier_str_mv Maíz Apellániz, Jesús; Sana, H.; Barba, Rodolfo Hector; Le Bouquin, J.B.; Gamen, Roberto Claudio; A close encounter of the massive kind; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 464; 1-2017; 3561-3568
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stw2618
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/464/3/3561/2514582
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
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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
_version_ 1842980610240413696
score 12.993085

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