BVRI photometric observations, light curve solutions and orbital period analysis of BF Pav

Autores
Poro, Atila; Alicavus, Fahri; Fernandez Lajus, Eduardo Eusebio; Davoudi, Fatemeh; MirshafieKhozani, PegahSadat; Blackford, Mark G.; Budding, Edwin; Jalalabadi, Behjat Zarei; Rahimi, Jabar; Farahani, Farzaneh Ahangarani
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A new ephemeris, period change analysis and light curve modeling of the W UMa-type eclipsing binary BF Pav are presented in this study. Light curves of the system taken in BVRI filters from two observatories, in Australia and Argentina, were modeled using the Wilson-Devinney code. The results of this analysis demonstrate that BF Pav is a contact binary system with a photometric mass ratio q = 1.460 ± 0.014, a fillout factor f = 12.5%, an inclination of 87.97 ± 0.45 deg and a cold spot on the secondary component. By applying the distance modulus formula, the distance of BF Pav was calculated to be d = 268 ± 18 pc which is in good agreement with the Gaia EDR3 distance. We obtain an orbital period increase at a rate of 0.142 s century−1 due to a quadratic trend in the O − C diagram. Also, an alternative sudden period jump probably occurred which could be interpreted as a rapid mass transfer from the lower mass star to its companion of about ∆M = 2.45×10−6 M. Furthermore, there is an oscillatory behavior with a period of 18.3 ± 0.3 yr. Since BF Pav does not seem to have significant magnetic activity, this behavior could be interpreted as the light-time effect caused by an undetected third body in this system. In this case, the probability for the third body to be a low mass star with M ≥ 0.075 M or a brown dwarf is 5.4% and 94.6% respectively. If we assume i0 = 90◦, a3 = 8.04 ± 0.33 AU. The mass of the secondary component was also determined following two different methods which result close to each other.
Fil: Poro, Atila. The International Occultation Timing Association Middle East section; Irán
Fil: Alicavus, Fahri. Canakkale Onsekiz Mart University; Turquía
Fil: Fernandez Lajus, Eduardo Eusebio. 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: Davoudi, Fatemeh. The International Occultation Timing Association Middle East section; Irán
Fil: MirshafieKhozani, PegahSadat. The International Occultation Timing Association Middle East section; Irán
Fil: Blackford, Mark G.. Congarinni Observatory; Australia
Fil: Budding, Edwin. Université du Québec a Montreal; Canadá
Fil: Jalalabadi, Behjat Zarei. Carter Observatory; Nueva Zelanda
Fil: Rahimi, Jabar. The International Occultation Timing Association Middle; Irán
Fil: Farahani, Farzaneh Ahangarani. The International Occultation Timing Association Middle; Irán
Materia
techniques: photometric
binaries: eclipsing
stars: individual (BF Pav)
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:11336/152756

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oai_identifier_str oai:ri.conicet.gov.ar:11336/152756
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling BVRI photometric observations, light curve solutions and orbital period analysis of BF PavPoro, AtilaAlicavus, FahriFernandez Lajus, Eduardo EusebioDavoudi, FatemehMirshafieKhozani, PegahSadatBlackford, Mark G.Budding, EdwinJalalabadi, Behjat ZareiRahimi, JabarFarahani, Farzaneh Ahangaranitechniques: photometricbinaries: eclipsingstars: individual (BF Pav)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A new ephemeris, period change analysis and light curve modeling of the W UMa-type eclipsing binary BF Pav are presented in this study. Light curves of the system taken in BVRI filters from two observatories, in Australia and Argentina, were modeled using the Wilson-Devinney code. The results of this analysis demonstrate that BF Pav is a contact binary system with a photometric mass ratio q = 1.460 ± 0.014, a fillout factor f = 12.5%, an inclination of 87.97 ± 0.45 deg and a cold spot on the secondary component. By applying the distance modulus formula, the distance of BF Pav was calculated to be d = 268 ± 18 pc which is in good agreement with the Gaia EDR3 distance. We obtain an orbital period increase at a rate of 0.142 s century−1 due to a quadratic trend in the O − C diagram. Also, an alternative sudden period jump probably occurred which could be interpreted as a rapid mass transfer from the lower mass star to its companion of about ∆M = 2.45×10−6 M. Furthermore, there is an oscillatory behavior with a period of 18.3 ± 0.3 yr. Since BF Pav does not seem to have significant magnetic activity, this behavior could be interpreted as the light-time effect caused by an undetected third body in this system. In this case, the probability for the third body to be a low mass star with M ≥ 0.075 M or a brown dwarf is 5.4% and 94.6% respectively. If we assume i0 = 90◦, a3 = 8.04 ± 0.33 AU. The mass of the secondary component was also determined following two different methods which result close to each other.Fil: Poro, Atila. The International Occultation Timing Association Middle East section; IránFil: Alicavus, Fahri. Canakkale Onsekiz Mart University; TurquíaFil: Fernandez Lajus, Eduardo Eusebio. 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: Davoudi, Fatemeh. The International Occultation Timing Association Middle East section; IránFil: MirshafieKhozani, PegahSadat. The International Occultation Timing Association Middle East section; IránFil: Blackford, Mark G.. Congarinni Observatory; AustraliaFil: Budding, Edwin. Université du Québec a Montreal; CanadáFil: Jalalabadi, Behjat Zarei. Carter Observatory; Nueva ZelandaFil: Rahimi, Jabar. The International Occultation Timing Association Middle; IránFil: Farahani, Farzaneh Ahangarani. The International Occultation Timing Association Middle; IránNational Astronomical Observatories2021-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/152756Poro, Atila; Alicavus, Fahri; Fernandez Lajus, Eduardo Eusebio; Davoudi, Fatemeh; MirshafieKhozani, PegahSadat; et al.; BVRI photometric observations, light curve solutions and orbital period analysis of BF Pav; National Astronomical Observatories; Research In Astronomy And Astrophysics; 21; 8; 8-2021; 203-2121674-4527CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.raa-journal.org/raa/index.php/raa/article/view/4875info:eu-repo/semantics/altIdentifier/doi/10.1088/1674-4527/21/8/203info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:45:56Zoai:ri.conicet.gov.ar:11336/152756instacron: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 09:45:57.005CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv BVRI photometric observations, light curve solutions and orbital period analysis of BF Pav
title BVRI photometric observations, light curve solutions and orbital period analysis of BF Pav
spellingShingle BVRI photometric observations, light curve solutions and orbital period analysis of BF Pav
Poro, Atila
techniques: photometric
binaries: eclipsing
stars: individual (BF Pav)
title_short BVRI photometric observations, light curve solutions and orbital period analysis of BF Pav
title_full BVRI photometric observations, light curve solutions and orbital period analysis of BF Pav
title_fullStr BVRI photometric observations, light curve solutions and orbital period analysis of BF Pav
title_full_unstemmed BVRI photometric observations, light curve solutions and orbital period analysis of BF Pav
title_sort BVRI photometric observations, light curve solutions and orbital period analysis of BF Pav
dc.creator.none.fl_str_mv Poro, Atila
Alicavus, Fahri
Fernandez Lajus, Eduardo Eusebio
Davoudi, Fatemeh
MirshafieKhozani, PegahSadat
Blackford, Mark G.
Budding, Edwin
Jalalabadi, Behjat Zarei
Rahimi, Jabar
Farahani, Farzaneh Ahangarani
author Poro, Atila
author_facet Poro, Atila
Alicavus, Fahri
Fernandez Lajus, Eduardo Eusebio
Davoudi, Fatemeh
MirshafieKhozani, PegahSadat
Blackford, Mark G.
Budding, Edwin
Jalalabadi, Behjat Zarei
Rahimi, Jabar
Farahani, Farzaneh Ahangarani
author_role author
author2 Alicavus, Fahri
Fernandez Lajus, Eduardo Eusebio
Davoudi, Fatemeh
MirshafieKhozani, PegahSadat
Blackford, Mark G.
Budding, Edwin
Jalalabadi, Behjat Zarei
Rahimi, Jabar
Farahani, Farzaneh Ahangarani
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv techniques: photometric
binaries: eclipsing
stars: individual (BF Pav)
topic techniques: photometric
binaries: eclipsing
stars: individual (BF Pav)
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A new ephemeris, period change analysis and light curve modeling of the W UMa-type eclipsing binary BF Pav are presented in this study. Light curves of the system taken in BVRI filters from two observatories, in Australia and Argentina, were modeled using the Wilson-Devinney code. The results of this analysis demonstrate that BF Pav is a contact binary system with a photometric mass ratio q = 1.460 ± 0.014, a fillout factor f = 12.5%, an inclination of 87.97 ± 0.45 deg and a cold spot on the secondary component. By applying the distance modulus formula, the distance of BF Pav was calculated to be d = 268 ± 18 pc which is in good agreement with the Gaia EDR3 distance. We obtain an orbital period increase at a rate of 0.142 s century−1 due to a quadratic trend in the O − C diagram. Also, an alternative sudden period jump probably occurred which could be interpreted as a rapid mass transfer from the lower mass star to its companion of about ∆M = 2.45×10−6 M. Furthermore, there is an oscillatory behavior with a period of 18.3 ± 0.3 yr. Since BF Pav does not seem to have significant magnetic activity, this behavior could be interpreted as the light-time effect caused by an undetected third body in this system. In this case, the probability for the third body to be a low mass star with M ≥ 0.075 M or a brown dwarf is 5.4% and 94.6% respectively. If we assume i0 = 90◦, a3 = 8.04 ± 0.33 AU. The mass of the secondary component was also determined following two different methods which result close to each other.
Fil: Poro, Atila. The International Occultation Timing Association Middle East section; Irán
Fil: Alicavus, Fahri. Canakkale Onsekiz Mart University; Turquía
Fil: Fernandez Lajus, Eduardo Eusebio. 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: Davoudi, Fatemeh. The International Occultation Timing Association Middle East section; Irán
Fil: MirshafieKhozani, PegahSadat. The International Occultation Timing Association Middle East section; Irán
Fil: Blackford, Mark G.. Congarinni Observatory; Australia
Fil: Budding, Edwin. Université du Québec a Montreal; Canadá
Fil: Jalalabadi, Behjat Zarei. Carter Observatory; Nueva Zelanda
Fil: Rahimi, Jabar. The International Occultation Timing Association Middle; Irán
Fil: Farahani, Farzaneh Ahangarani. The International Occultation Timing Association Middle; Irán
description A new ephemeris, period change analysis and light curve modeling of the W UMa-type eclipsing binary BF Pav are presented in this study. Light curves of the system taken in BVRI filters from two observatories, in Australia and Argentina, were modeled using the Wilson-Devinney code. The results of this analysis demonstrate that BF Pav is a contact binary system with a photometric mass ratio q = 1.460 ± 0.014, a fillout factor f = 12.5%, an inclination of 87.97 ± 0.45 deg and a cold spot on the secondary component. By applying the distance modulus formula, the distance of BF Pav was calculated to be d = 268 ± 18 pc which is in good agreement with the Gaia EDR3 distance. We obtain an orbital period increase at a rate of 0.142 s century−1 due to a quadratic trend in the O − C diagram. Also, an alternative sudden period jump probably occurred which could be interpreted as a rapid mass transfer from the lower mass star to its companion of about ∆M = 2.45×10−6 M. Furthermore, there is an oscillatory behavior with a period of 18.3 ± 0.3 yr. Since BF Pav does not seem to have significant magnetic activity, this behavior could be interpreted as the light-time effect caused by an undetected third body in this system. In this case, the probability for the third body to be a low mass star with M ≥ 0.075 M or a brown dwarf is 5.4% and 94.6% respectively. If we assume i0 = 90◦, a3 = 8.04 ± 0.33 AU. The mass of the secondary component was also determined following two different methods which result close to each other.
publishDate 2021
dc.date.none.fl_str_mv 2021-08
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/11336/152756
Poro, Atila; Alicavus, Fahri; Fernandez Lajus, Eduardo Eusebio; Davoudi, Fatemeh; MirshafieKhozani, PegahSadat; et al.; BVRI photometric observations, light curve solutions and orbital period analysis of BF Pav; National Astronomical Observatories; Research In Astronomy And Astrophysics; 21; 8; 8-2021; 203-212
1674-4527
CONICET Digital
CONICET
url http://hdl.handle.net/11336/152756
identifier_str_mv Poro, Atila; Alicavus, Fahri; Fernandez Lajus, Eduardo Eusebio; Davoudi, Fatemeh; MirshafieKhozani, PegahSadat; et al.; BVRI photometric observations, light curve solutions and orbital period analysis of BF Pav; National Astronomical Observatories; Research In Astronomy And Astrophysics; 21; 8; 8-2021; 203-212
1674-4527
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://www.raa-journal.org/raa/index.php/raa/article/view/4875
info:eu-repo/semantics/altIdentifier/doi/10.1088/1674-4527/21/8/203
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 National Astronomical Observatories
publisher.none.fl_str_mv National Astronomical Observatories
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