Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr

Autores
Han, Zhong-Tao; Qian, Sheng-Bang; Fernandez Lajus, Eduardo Eusebio; Voloshina, Irina; Zhu, Li-Ying
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the analysis results of an eclipsing cataclysmic variable (CV) V729 Sgr, based on our observations and American Association of Variable Star Observers data. Some outburst parameters are determined, such as outburst amplitude (An) and recurrence time (Tn), and then the relationship between An and Tn is discussed. A cursory examination of the long-term light curves reveals that there are small-amplitude outbursts and dips present, which is similar to the behavior seen in some novalike CVs (NLs). More detailed inspection suggests that the outbursts in V729 Sgr may be Type A (outside-in) with a rise time ∼1.76 d. Further analysis also shows that V729 Sgr is an intermediate between dwarf nova and NLs, and we constrain its mass transfer rate to 1.59×10−9Fil: Han, Zhong-Tao. Chinese Academy of Sciences; República de China
Fil: Qian, Sheng-Bang. Chinese Academy of Sciences; República de China
Fil: Fernandez Lajus, Eduardo Eusebio. 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: Voloshina, Irina. Moscow State University; Rusia
Fil: Zhu, Li-Ying. Chinese Academy of Sciences; República de China
Materia
Eclipsing binaries
Cataclysms variables
V729 SAGITARII (estrella)
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:11336/44904
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/44904
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Long-term photometric behavior of the eclipsing cataclysmic variable V729 SgrHan, Zhong-TaoQian, Sheng-BangFernandez Lajus, Eduardo EusebioVoloshina, IrinaZhu, Li-YingEclipsing binariesCataclysms variablesV729 SAGITARII (estrella)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present the analysis results of an eclipsing cataclysmic variable (CV) V729 Sgr, based on our observations and American Association of Variable Star Observers data. Some outburst parameters are determined, such as outburst amplitude (An) and recurrence time (Tn), and then the relationship between An and Tn is discussed. A cursory examination of the long-term light curves reveals that there are small-amplitude outbursts and dips present, which is similar to the behavior seen in some novalike CVs (NLs). More detailed inspection suggests that the outbursts in V729 Sgr may be Type A (outside-in) with a rise time ∼1.76 d. Further analysis also shows that V729 Sgr is an intermediate between dwarf nova and NLs, and we constrain its mass transfer rate to 1.59×10−9<M˙2<5.8×10−9M⊙ 1.59×10−9<M˙2<5.8×10−9M⊙ yr−1 by combining the theory for Z Cam type stars with observations. Moreover, the rapid oscillations in V729 Sgr were detected and analyzed for the first time. Our results indicate that the oscillation at ∼25.5 s is a true dwarf nova oscillation (DNO), being associated with the accretion events. The classification of the oscillations at ∼136 and 154 s as longer-period DNOs (lpDNOs) is based on the relation between PlpDNOs and PDNOs. Meanwhile, quasi-periodic oscillations with periods of hundreds of seconds are also detected.Fil: Han, Zhong-Tao. Chinese Academy of Sciences; República de ChinaFil: Qian, Sheng-Bang. Chinese Academy of Sciences; República de ChinaFil: Fernandez Lajus, Eduardo Eusebio. 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: Voloshina, Irina. Moscow State University; RusiaFil: Zhu, Li-Ying. Chinese Academy of Sciences; República de ChinaAstronomical Soc Japan2017-05info: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/11336/44904Han, Zhong-Tao; Qian, Sheng-Bang; Fernandez Lajus, Eduardo Eusebio; Voloshina, Irina; Zhu, Li-Ying; Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr; Astronomical Soc Japan; Publications Of The Astronomical Society Of Japan; 69; 3; 5-2017; 55-640004-6264CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/pasj/psx030info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/pasj/article-abstract/69/3/55/3798176?redirectedFrom=fulltextinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:04:48Zoai:ri.conicet.gov.ar:11336/44904instacron: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:34982025-10-22 12:04:49.064CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr
title Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr
spellingShingle Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr
Han, Zhong-Tao
Eclipsing binaries
Cataclysms variables
V729 SAGITARII (estrella)
title_short Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr
title_full Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr
title_fullStr Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr
title_full_unstemmed Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr
title_sort Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr
dc.creator.none.fl_str_mv Han, Zhong-Tao
Qian, Sheng-Bang
Fernandez Lajus, Eduardo Eusebio
Voloshina, Irina
Zhu, Li-Ying
author Han, Zhong-Tao
author_facet Han, Zhong-Tao
Qian, Sheng-Bang
Fernandez Lajus, Eduardo Eusebio
Voloshina, Irina
Zhu, Li-Ying
author_role author
author2 Qian, Sheng-Bang
Fernandez Lajus, Eduardo Eusebio
Voloshina, Irina
Zhu, Li-Ying
author2_role author
author
author
author
dc.subject.none.fl_str_mv Eclipsing binaries
Cataclysms variables
V729 SAGITARII (estrella)
topic Eclipsing binaries
Cataclysms variables
V729 SAGITARII (estrella)
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 present the analysis results of an eclipsing cataclysmic variable (CV) V729 Sgr, based on our observations and American Association of Variable Star Observers data. Some outburst parameters are determined, such as outburst amplitude (An) and recurrence time (Tn), and then the relationship between An and Tn is discussed. A cursory examination of the long-term light curves reveals that there are small-amplitude outbursts and dips present, which is similar to the behavior seen in some novalike CVs (NLs). More detailed inspection suggests that the outbursts in V729 Sgr may be Type A (outside-in) with a rise time ∼1.76 d. Further analysis also shows that V729 Sgr is an intermediate between dwarf nova and NLs, and we constrain its mass transfer rate to 1.59×10−9<M˙2<5.8×10−9M⊙ 1.59×10−9<M˙2<5.8×10−9M⊙ yr−1 by combining the theory for Z Cam type stars with observations. Moreover, the rapid oscillations in V729 Sgr were detected and analyzed for the first time. Our results indicate that the oscillation at ∼25.5 s is a true dwarf nova oscillation (DNO), being associated with the accretion events. The classification of the oscillations at ∼136 and 154 s as longer-period DNOs (lpDNOs) is based on the relation between PlpDNOs and PDNOs. Meanwhile, quasi-periodic oscillations with periods of hundreds of seconds are also detected.
Fil: Han, Zhong-Tao. Chinese Academy of Sciences; República de China
Fil: Qian, Sheng-Bang. Chinese Academy of Sciences; República de China
Fil: Fernandez Lajus, Eduardo Eusebio. 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: Voloshina, Irina. Moscow State University; Rusia
Fil: Zhu, Li-Ying. Chinese Academy of Sciences; República de China
description We present the analysis results of an eclipsing cataclysmic variable (CV) V729 Sgr, based on our observations and American Association of Variable Star Observers data. Some outburst parameters are determined, such as outburst amplitude (An) and recurrence time (Tn), and then the relationship between An and Tn is discussed. A cursory examination of the long-term light curves reveals that there are small-amplitude outbursts and dips present, which is similar to the behavior seen in some novalike CVs (NLs). More detailed inspection suggests that the outbursts in V729 Sgr may be Type A (outside-in) with a rise time ∼1.76 d. Further analysis also shows that V729 Sgr is an intermediate between dwarf nova and NLs, and we constrain its mass transfer rate to 1.59×10−9<M˙2<5.8×10−9M⊙ 1.59×10−9<M˙2<5.8×10−9M⊙ yr−1 by combining the theory for Z Cam type stars with observations. Moreover, the rapid oscillations in V729 Sgr were detected and analyzed for the first time. Our results indicate that the oscillation at ∼25.5 s is a true dwarf nova oscillation (DNO), being associated with the accretion events. The classification of the oscillations at ∼136 and 154 s as longer-period DNOs (lpDNOs) is based on the relation between PlpDNOs and PDNOs. Meanwhile, quasi-periodic oscillations with periods of hundreds of seconds are also detected.
publishDate 2017
dc.date.none.fl_str_mv 2017-05
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/11336/44904
Han, Zhong-Tao; Qian, Sheng-Bang; Fernandez Lajus, Eduardo Eusebio; Voloshina, Irina; Zhu, Li-Ying; Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr; Astronomical Soc Japan; Publications Of The Astronomical Society Of Japan; 69; 3; 5-2017; 55-64
0004-6264
CONICET Digital
CONICET
url http://hdl.handle.net/11336/44904
identifier_str_mv Han, Zhong-Tao; Qian, Sheng-Bang; Fernandez Lajus, Eduardo Eusebio; Voloshina, Irina; Zhu, Li-Ying; Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr; Astronomical Soc Japan; Publications Of The Astronomical Society Of Japan; 69; 3; 5-2017; 55-64
0004-6264
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/pasj/psx030
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/pasj/article-abstract/69/3/55/3798176?redirectedFrom=fulltext
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
application/pdf
dc.publisher.none.fl_str_mv Astronomical Soc Japan
publisher.none.fl_str_mv Astronomical Soc Japan
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 12.982451

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