A Mini Atlas of H-Band Spectra of Southern Symbiotic Stars

Autores
Marchiano, Paula Esther; Arias, María Laura; Kraus, Michaela; Kourniotis, Michalis; Torres, Andrea Fabiana; Cidale, Lydia Sonia; Borges Fernandes, Marcelo
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Symbiotic stars are interacting binary systems composed of an evolved star (generally a late-type red giant) and a degenerate or dwarf companion in orbit close enough for mass transfer to occur. Understanding the status of the late-type star is important for developing binary models for the symbiotic systems as it affects the transfer of matter needed to activate the hot component. Infrared observations have been very useful in probing the nature of late-type stars in symbiotic systems. This work presents a set of symbiotic stars observed with SOAR/OSIRIS (R∼3000) in the H-band. We aimed to search for possible molecular circumstellar emission, to characterize the cool companion in these systems, and to confront the new findings with those obtained from the previous K-band classifications. We detected molecular emission from just one object, BI Cru, which displays the second-overtone CO-bands. To fit the observed photospheric CO absorption bands, we used the MARCS atmosphere models. We present our results as a mini atlas of symbiotic stars in the near-infrared region to facilitate the comparison among different observed symbiotic systems.
Instituto de Astrofísica de La Plata
Materia
Ciencias Astronómicas
techniques: spectroscopic
stars: symbiotic, binaries
stars: infrared
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/159967
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/159967
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling A Mini Atlas of H-Band Spectra of Southern Symbiotic StarsMarchiano, Paula EstherArias, María LauraKraus, MichaelaKourniotis, MichalisTorres, Andrea FabianaCidale, Lydia SoniaBorges Fernandes, MarceloCiencias Astronómicastechniques: spectroscopicstars: symbiotic, binariesstars: infraredSymbiotic stars are interacting binary systems composed of an evolved star (generally a late-type red giant) and a degenerate or dwarf companion in orbit close enough for mass transfer to occur. Understanding the status of the late-type star is important for developing binary models for the symbiotic systems as it affects the transfer of matter needed to activate the hot component. Infrared observations have been very useful in probing the nature of late-type stars in symbiotic systems. This work presents a set of symbiotic stars observed with SOAR/OSIRIS (R∼3000) in the H-band. We aimed to search for possible molecular circumstellar emission, to characterize the cool companion in these systems, and to confront the new findings with those obtained from the previous K-band classifications. We detected molecular emission from just one object, BI Cru, which displays the second-overtone CO-bands. To fit the observed photospheric CO absorption bands, we used the MARCS atmosphere models. We present our results as a mini atlas of symbiotic stars in the near-infrared region to facilitate the comparison among different observed symbiotic systems.Instituto de Astrofísica de La Plata2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/159967enginfo:eu-repo/semantics/altIdentifier/issn/2075-4434info:eu-repo/semantics/altIdentifier/doi/10.3390/galaxies11040080info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:13:49Zoai:sedici.unlp.edu.ar:10915/159967Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:13:50.762SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv A Mini Atlas of H-Band Spectra of Southern Symbiotic Stars
title A Mini Atlas of H-Band Spectra of Southern Symbiotic Stars
spellingShingle A Mini Atlas of H-Band Spectra of Southern Symbiotic Stars
Marchiano, Paula Esther
Ciencias Astronómicas
techniques: spectroscopic
stars: symbiotic, binaries
stars: infrared
title_short A Mini Atlas of H-Band Spectra of Southern Symbiotic Stars
title_full A Mini Atlas of H-Band Spectra of Southern Symbiotic Stars
title_fullStr A Mini Atlas of H-Band Spectra of Southern Symbiotic Stars
title_full_unstemmed A Mini Atlas of H-Band Spectra of Southern Symbiotic Stars
title_sort A Mini Atlas of H-Band Spectra of Southern Symbiotic Stars
dc.creator.none.fl_str_mv Marchiano, Paula Esther
Arias, María Laura
Kraus, Michaela
Kourniotis, Michalis
Torres, Andrea Fabiana
Cidale, Lydia Sonia
Borges Fernandes, Marcelo
author Marchiano, Paula Esther
author_facet Marchiano, Paula Esther
Arias, María Laura
Kraus, Michaela
Kourniotis, Michalis
Torres, Andrea Fabiana
Cidale, Lydia Sonia
Borges Fernandes, Marcelo
author_role author
author2 Arias, María Laura
Kraus, Michaela
Kourniotis, Michalis
Torres, Andrea Fabiana
Cidale, Lydia Sonia
Borges Fernandes, Marcelo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
techniques: spectroscopic
stars: symbiotic, binaries
stars: infrared
topic Ciencias Astronómicas
techniques: spectroscopic
stars: symbiotic, binaries
stars: infrared
dc.description.none.fl_txt_mv Symbiotic stars are interacting binary systems composed of an evolved star (generally a late-type red giant) and a degenerate or dwarf companion in orbit close enough for mass transfer to occur. Understanding the status of the late-type star is important for developing binary models for the symbiotic systems as it affects the transfer of matter needed to activate the hot component. Infrared observations have been very useful in probing the nature of late-type stars in symbiotic systems. This work presents a set of symbiotic stars observed with SOAR/OSIRIS (R∼3000) in the H-band. We aimed to search for possible molecular circumstellar emission, to characterize the cool companion in these systems, and to confront the new findings with those obtained from the previous K-band classifications. We detected molecular emission from just one object, BI Cru, which displays the second-overtone CO-bands. To fit the observed photospheric CO absorption bands, we used the MARCS atmosphere models. We present our results as a mini atlas of symbiotic stars in the near-infrared region to facilitate the comparison among different observed symbiotic systems.
Instituto de Astrofísica de La Plata
description Symbiotic stars are interacting binary systems composed of an evolved star (generally a late-type red giant) and a degenerate or dwarf companion in orbit close enough for mass transfer to occur. Understanding the status of the late-type star is important for developing binary models for the symbiotic systems as it affects the transfer of matter needed to activate the hot component. Infrared observations have been very useful in probing the nature of late-type stars in symbiotic systems. This work presents a set of symbiotic stars observed with SOAR/OSIRIS (R∼3000) in the H-band. We aimed to search for possible molecular circumstellar emission, to characterize the cool companion in these systems, and to confront the new findings with those obtained from the previous K-band classifications. We detected molecular emission from just one object, BI Cru, which displays the second-overtone CO-bands. To fit the observed photospheric CO absorption bands, we used the MARCS atmosphere models. We present our results as a mini atlas of symbiotic stars in the near-infrared region to facilitate the comparison among different observed symbiotic systems.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/159967
url http://sedici.unlp.edu.ar/handle/10915/159967
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2075-4434
info:eu-repo/semantics/altIdentifier/doi/10.3390/galaxies11040080
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.13397

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