Multiwavelength optical observations of two chromospherically active binary systems: v789 mon and gz leo

This paper describes a multiwavelength optical study of chromospheres in two X-ray/EUV-selected active binary stars with strong H alpha emission, V789 Mon (2RE J0725-002) and GZ Leo (2RE J1101+223). The goal of the study is to determine radial velocities and fundamental stellar parameters in chromos...

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Detalles Bibliográficos
Autores: Gálvez, M. C., Montes Gutiérrez, David, Fernández Figueroa, María José, Castro Rubio, Elisa De, Cornide Castro-Piñeiro, Manuel
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/44639
Acceso en línea:https://hdl.handle.net/20.500.14352/44639
Access Level:acceso abierto
Palabra clave:52
RS canum-venaticorum
Disk population
Radial-velocity
Ursae majoris
H-alpha
X-ray
Stars
Young
Single
Variability
Astrofísica
Astronomía (Física)
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oai_identifier_str oai:docta.ucm.es:20.500.14352/44639
network_acronym_str ES
network_name_str España
repository_id_str
spelling Multiwavelength optical observations of two chromospherically active binary systems: v789 mon and gz leoGálvez, M. C.Montes Gutiérrez, DavidFernández Figueroa, María JoséCastro Rubio, Elisa DeCornide Castro-Piñeiro, Manuel52RS canum-venaticorumDisk populationRadial-velocityUrsae majorisH-alphaX-rayStarsYoungSingleVariabilityAstrofísicaAstronomía (Física)This paper describes a multiwavelength optical study of chromospheres in two X-ray/EUV-selected active binary stars with strong H alpha emission, V789 Mon (2RE J0725-002) and GZ Leo (2RE J1101+223). The goal of the study is to determine radial velocities and fundamental stellar parameters in chromospherically active binary systems in order to include them in the activity-rotation and activity-age relations. We carried out high-resolution echelle spectroscopic observations and applied spectral-subtraction technique in order to measure emission excesses due to chromosphere. The detailed study of activity indicators allowed us to characterize the presence of different chromospheric features in these systems and enabled to include them in a larger activity-rotation survey. We computed radial velocities of the systems using cross-correlation with the radial velocity standards. The double-line spectral binarity was confirmed and the orbital solutions improved for both systems. In addition, other stellar parameters such as spectral types, projected rotational velocities (v sin i) and the equivalent width of the lithium Li i λ6707.8 Å absorption line were determined.IOP Publishing ltdUniversidad Complutense de Madrid20092009-04-0120092009-04-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/44639reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/446392026-06-02T12:44:21Z
dc.title.none.fl_str_mv Multiwavelength optical observations of two chromospherically active binary systems: v789 mon and gz leo
title Multiwavelength optical observations of two chromospherically active binary systems: v789 mon and gz leo
spellingShingle Multiwavelength optical observations of two chromospherically active binary systems: v789 mon and gz leo
Gálvez, M. C.
52
RS canum-venaticorum
Disk population
Radial-velocity
Ursae majoris
H-alpha
X-ray
Stars
Young
Single
Variability
Astrofísica
Astronomía (Física)
title_short Multiwavelength optical observations of two chromospherically active binary systems: v789 mon and gz leo
title_full Multiwavelength optical observations of two chromospherically active binary systems: v789 mon and gz leo
title_fullStr Multiwavelength optical observations of two chromospherically active binary systems: v789 mon and gz leo
title_full_unstemmed Multiwavelength optical observations of two chromospherically active binary systems: v789 mon and gz leo
title_sort Multiwavelength optical observations of two chromospherically active binary systems: v789 mon and gz leo
dc.creator.none.fl_str_mv Gálvez, M. C.
Montes Gutiérrez, David
Fernández Figueroa, María José
Castro Rubio, Elisa De
Cornide Castro-Piñeiro, Manuel
author Gálvez, M. C.
author_facet Gálvez, M. C.
Montes Gutiérrez, David
Fernández Figueroa, María José
Castro Rubio, Elisa De
Cornide Castro-Piñeiro, Manuel
author_role author
author2 Montes Gutiérrez, David
Fernández Figueroa, María José
Castro Rubio, Elisa De
Cornide Castro-Piñeiro, Manuel
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 52
RS canum-venaticorum
Disk population
Radial-velocity
Ursae majoris
H-alpha
X-ray
Stars
Young
Single
Variability
Astrofísica
Astronomía (Física)
topic 52
RS canum-venaticorum
Disk population
Radial-velocity
Ursae majoris
H-alpha
X-ray
Stars
Young
Single
Variability
Astrofísica
Astronomía (Física)
description This paper describes a multiwavelength optical study of chromospheres in two X-ray/EUV-selected active binary stars with strong H alpha emission, V789 Mon (2RE J0725-002) and GZ Leo (2RE J1101+223). The goal of the study is to determine radial velocities and fundamental stellar parameters in chromospherically active binary systems in order to include them in the activity-rotation and activity-age relations. We carried out high-resolution echelle spectroscopic observations and applied spectral-subtraction technique in order to measure emission excesses due to chromosphere. The detailed study of activity indicators allowed us to characterize the presence of different chromospheric features in these systems and enabled to include them in a larger activity-rotation survey. We computed radial velocities of the systems using cross-correlation with the radial velocity standards. The double-line spectral binarity was confirmed and the orbital solutions improved for both systems. In addition, other stellar parameters such as spectral types, projected rotational velocities (v sin i) and the equivalent width of the lithium Li i λ6707.8 Å absorption line were determined.
publishDate 2009
dc.date.none.fl_str_mv 2009
2009-04-01
2009
2009-04-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/44639
url https://hdl.handle.net/20.500.14352/44639
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IOP Publishing ltd
publisher.none.fl_str_mv IOP Publishing ltd
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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