The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic Variables

Autores
Mennickent, R. E.; Kolaczkowski, Z.; Michalska, G.; Pietrzyński, G.; Gallardo, R.; Cidale, Lydia Sonia; Granada, Anahi; Gieren, W.
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate the nature of OGLE05155332-6925581, one of the brightest members of the enigmatic group of double periodic variables (DPVs) recently found in the Magellanic Clouds. The modelling of archival orbital light curves (LCs), along with the analysis of the radial velocities (RVs) suggest that this object is a semidetached binary with the less massive star transferring matter to the more massive and less evolved star, in an Algol-like configuration. We find evidence for additional orbital variability and Hα emission, likely caused by an accretion disc around the primary star. As in the case of βLyr the circumprimary disc seems to be more luminous than the primary, but we do not detect orbital period changes. We find that the LC follows a loop in the colour-magnitude diagram during the long cycle; the system is redder when brighter and the rising phase is bluer than during decline. Infrared excess is also present. The source of the long-term periodicity is not eclipsed, indicating its circumbinary origin. Strong asymmetries, discrete absorption components (DACs) and a γ shift are new and essential observational properties in the infrared HI lines. The DACs strength and RV follow a saw-teeth pattern during the orbital cycle. We suggest that the system experiences supercycles of mass outflow feeding a circumbinary disc. Mass exchange and mass loss could produce comparable but opposite effects in the orbital period on a long time-scale, resulting in a quasi-constancy of this parameter.
Fil: Mennickent, R. E.. Universidad de Concepción; Chile
Fil: Kolaczkowski, Z.. Universidad de Concepción; Chile
Fil: Michalska, G.. Instytut Astronomiczny Uniwersytetu Wroclawskiego; Polonia
Fil: Pietrzyński, G.. Universidad de Concepción; Chile
Fil: Gallardo, R.. Universidad de Concepción; Chile
Fil: Cidale, Lydia Sonia. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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
Fil: Granada, Anahi. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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
Fil: Gieren, W.. Universidad de Concepción; Chile
Materia
Eclipsing binaries
Early type stars
Evolution of stars
Mass loss
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:11336/45717
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/45717
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic VariablesMennickent, R. E.Kolaczkowski, Z.Michalska, G.Pietrzyński, G.Gallardo, R.Cidale, Lydia SoniaGranada, AnahiGieren, W.Eclipsing binariesEarly type starsEvolution of starsMass losshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We investigate the nature of OGLE05155332-6925581, one of the brightest members of the enigmatic group of double periodic variables (DPVs) recently found in the Magellanic Clouds. The modelling of archival orbital light curves (LCs), along with the analysis of the radial velocities (RVs) suggest that this object is a semidetached binary with the less massive star transferring matter to the more massive and less evolved star, in an Algol-like configuration. We find evidence for additional orbital variability and Hα emission, likely caused by an accretion disc around the primary star. As in the case of βLyr the circumprimary disc seems to be more luminous than the primary, but we do not detect orbital period changes. We find that the LC follows a loop in the colour-magnitude diagram during the long cycle; the system is redder when brighter and the rising phase is bluer than during decline. Infrared excess is also present. The source of the long-term periodicity is not eclipsed, indicating its circumbinary origin. Strong asymmetries, discrete absorption components (DACs) and a γ shift are new and essential observational properties in the infrared HI lines. The DACs strength and RV follow a saw-teeth pattern during the orbital cycle. We suggest that the system experiences supercycles of mass outflow feeding a circumbinary disc. Mass exchange and mass loss could produce comparable but opposite effects in the orbital period on a long time-scale, resulting in a quasi-constancy of this parameter.Fil: Mennickent, R. E.. Universidad de Concepción; ChileFil: Kolaczkowski, Z.. Universidad de Concepción; ChileFil: Michalska, G.. Instytut Astronomiczny Uniwersytetu Wroclawskiego; PoloniaFil: Pietrzyński, G.. Universidad de Concepción; ChileFil: Gallardo, R.. Universidad de Concepción; ChileFil: Cidale, Lydia Sonia. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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; ArgentinaFil: Granada, Anahi. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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; ArgentinaFil: Gieren, W.. Universidad de Concepción; ChileWiley Blackwell Publishing, Inc2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/45717Mennickent, R. E.; Kolaczkowski, Z.; Michalska, G.; Pietrzyński, G.; Gallardo, R.; et al.; The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic Variables; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 389; 4; 12-2008; 1605-16180035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://adsabs.harvard.edu/abs/2008MNRAS.389.1605Minfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2008.13696.xinfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/389/4/1605/1103880info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:02:53Zoai:ri.conicet.gov.ar:11336/45717instacron: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:34982025-09-29 10:02:54.159CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic Variables
title The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic Variables
spellingShingle The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic Variables
Mennickent, R. E.
Eclipsing binaries
Early type stars
Evolution of stars
Mass loss
title_short The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic Variables
title_full The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic Variables
title_fullStr The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic Variables
title_full_unstemmed The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic Variables
title_sort The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic Variables
dc.creator.none.fl_str_mv Mennickent, R. E.
Kolaczkowski, Z.
Michalska, G.
Pietrzyński, G.
Gallardo, R.
Cidale, Lydia Sonia
Granada, Anahi
Gieren, W.
author Mennickent, R. E.
author_facet Mennickent, R. E.
Kolaczkowski, Z.
Michalska, G.
Pietrzyński, G.
Gallardo, R.
Cidale, Lydia Sonia
Granada, Anahi
Gieren, W.
author_role author
author2 Kolaczkowski, Z.
Michalska, G.
Pietrzyński, G.
Gallardo, R.
Cidale, Lydia Sonia
Granada, Anahi
Gieren, W.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Eclipsing binaries
Early type stars
Evolution of stars
Mass loss
topic Eclipsing binaries
Early type stars
Evolution of stars
Mass loss
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 investigate the nature of OGLE05155332-6925581, one of the brightest members of the enigmatic group of double periodic variables (DPVs) recently found in the Magellanic Clouds. The modelling of archival orbital light curves (LCs), along with the analysis of the radial velocities (RVs) suggest that this object is a semidetached binary with the less massive star transferring matter to the more massive and less evolved star, in an Algol-like configuration. We find evidence for additional orbital variability and Hα emission, likely caused by an accretion disc around the primary star. As in the case of βLyr the circumprimary disc seems to be more luminous than the primary, but we do not detect orbital period changes. We find that the LC follows a loop in the colour-magnitude diagram during the long cycle; the system is redder when brighter and the rising phase is bluer than during decline. Infrared excess is also present. The source of the long-term periodicity is not eclipsed, indicating its circumbinary origin. Strong asymmetries, discrete absorption components (DACs) and a γ shift are new and essential observational properties in the infrared HI lines. The DACs strength and RV follow a saw-teeth pattern during the orbital cycle. We suggest that the system experiences supercycles of mass outflow feeding a circumbinary disc. Mass exchange and mass loss could produce comparable but opposite effects in the orbital period on a long time-scale, resulting in a quasi-constancy of this parameter.
Fil: Mennickent, R. E.. Universidad de Concepción; Chile
Fil: Kolaczkowski, Z.. Universidad de Concepción; Chile
Fil: Michalska, G.. Instytut Astronomiczny Uniwersytetu Wroclawskiego; Polonia
Fil: Pietrzyński, G.. Universidad de Concepción; Chile
Fil: Gallardo, R.. Universidad de Concepción; Chile
Fil: Cidale, Lydia Sonia. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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
Fil: Granada, Anahi. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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
Fil: Gieren, W.. Universidad de Concepción; Chile
description We investigate the nature of OGLE05155332-6925581, one of the brightest members of the enigmatic group of double periodic variables (DPVs) recently found in the Magellanic Clouds. The modelling of archival orbital light curves (LCs), along with the analysis of the radial velocities (RVs) suggest that this object is a semidetached binary with the less massive star transferring matter to the more massive and less evolved star, in an Algol-like configuration. We find evidence for additional orbital variability and Hα emission, likely caused by an accretion disc around the primary star. As in the case of βLyr the circumprimary disc seems to be more luminous than the primary, but we do not detect orbital period changes. We find that the LC follows a loop in the colour-magnitude diagram during the long cycle; the system is redder when brighter and the rising phase is bluer than during decline. Infrared excess is also present. The source of the long-term periodicity is not eclipsed, indicating its circumbinary origin. Strong asymmetries, discrete absorption components (DACs) and a γ shift are new and essential observational properties in the infrared HI lines. The DACs strength and RV follow a saw-teeth pattern during the orbital cycle. We suggest that the system experiences supercycles of mass outflow feeding a circumbinary disc. Mass exchange and mass loss could produce comparable but opposite effects in the orbital period on a long time-scale, resulting in a quasi-constancy of this parameter.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
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/11336/45717
Mennickent, R. E.; Kolaczkowski, Z.; Michalska, G.; Pietrzyński, G.; Gallardo, R.; et al.; The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic Variables; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 389; 4; 12-2008; 1605-1618
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/45717
identifier_str_mv Mennickent, R. E.; Kolaczkowski, Z.; Michalska, G.; Pietrzyński, G.; Gallardo, R.; et al.; The eclipsing LMC star OGLE05155332-6925581: a clue to understand Double Periodic Variables; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 389; 4; 12-2008; 1605-1618
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/url/http://adsabs.harvard.edu/abs/2008MNRAS.389.1605M
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2008.13696.x
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/389/4/1605/1103880
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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
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
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score 13.070432

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