Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994

Autores
Gonzalez, Jorge Federico; Hubrig, S.; Kurtz, D. W.; Elkin, V.; Savanov, I.
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Asteroseismology has the potential to provide new insights into the physics of stellar interiors. We have obtained Ultraviolet and Visual Echelle Spectrograph high time-resolution observations of the δ Scuti star HD21190 and of the Ap Sr star HD218994 to search for pulsational line profile variations. We report the discovery of a new roAp star, HD218994, with a pulsation period of 14.2min. This is one of the most evolved roAp stars. No rapid pulsations have been found in the spectra of the cool Ap star - δ Scuti star HD21190. However, we detect with unprecedented clarity for a δScuti star moving peaks in the cores of spectral lines that indicate the presence of high-degree non-radial pulsations in this star.
Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
Fil: Hubrig, S.. European Southern Observatory Chile; Chile
Fil: Kurtz, D. W.. University of Central Lancashire; Estados Unidos
Fil: Elkin, V.. University of Central Lancashire; Estados Unidos
Fil: Savanov, I.. College Hill; Irlanda
Materia
STARS: CHEMICALLY PECULIAR
STARS: OSCILLATIONS
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:11336/214793
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994Gonzalez, Jorge FedericoHubrig, S.Kurtz, D. W.Elkin, V.Savanov, I.STARS: CHEMICALLY PECULIARSTARS: OSCILLATIONShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Asteroseismology has the potential to provide new insights into the physics of stellar interiors. We have obtained Ultraviolet and Visual Echelle Spectrograph high time-resolution observations of the δ Scuti star HD21190 and of the Ap Sr star HD218994 to search for pulsational line profile variations. We report the discovery of a new roAp star, HD218994, with a pulsation period of 14.2min. This is one of the most evolved roAp stars. No rapid pulsations have been found in the spectra of the cool Ap star - δ Scuti star HD21190. However, we detect with unprecedented clarity for a δScuti star moving peaks in the cores of spectral lines that indicate the presence of high-degree non-radial pulsations in this star.Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; ArgentinaFil: Hubrig, S.. European Southern Observatory Chile; ChileFil: Kurtz, D. W.. University of Central Lancashire; Estados UnidosFil: Elkin, V.. University of Central Lancashire; Estados UnidosFil: Savanov, I.. College Hill; IrlandaWiley Blackwell Publishing, Inc2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/214793Gonzalez, Jorge Federico; Hubrig, S.; Kurtz, D. W.; Elkin, V.; Savanov, I.; Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 384; 3; 12-2008; 1140-11440035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2007.12779.xinfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/384/3/1140/988587info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:22:06Zoai:ri.conicet.gov.ar:11336/214793instacron: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:34982025-09-10 13:22:06.436CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994
title Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994
spellingShingle Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994
Gonzalez, Jorge Federico
STARS: CHEMICALLY PECULIAR
STARS: OSCILLATIONS
title_short Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994
title_full Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994
title_fullStr Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994
title_full_unstemmed Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994
title_sort Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994
dc.creator.none.fl_str_mv Gonzalez, Jorge Federico
Hubrig, S.
Kurtz, D. W.
Elkin, V.
Savanov, I.
author Gonzalez, Jorge Federico
author_facet Gonzalez, Jorge Federico
Hubrig, S.
Kurtz, D. W.
Elkin, V.
Savanov, I.
author_role author
author2 Hubrig, S.
Kurtz, D. W.
Elkin, V.
Savanov, I.
author2_role author
author
author
author
dc.subject.none.fl_str_mv STARS: CHEMICALLY PECULIAR
STARS: OSCILLATIONS
topic STARS: CHEMICALLY PECULIAR
STARS: OSCILLATIONS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Asteroseismology has the potential to provide new insights into the physics of stellar interiors. We have obtained Ultraviolet and Visual Echelle Spectrograph high time-resolution observations of the δ Scuti star HD21190 and of the Ap Sr star HD218994 to search for pulsational line profile variations. We report the discovery of a new roAp star, HD218994, with a pulsation period of 14.2min. This is one of the most evolved roAp stars. No rapid pulsations have been found in the spectra of the cool Ap star - δ Scuti star HD21190. However, we detect with unprecedented clarity for a δScuti star moving peaks in the cores of spectral lines that indicate the presence of high-degree non-radial pulsations in this star.
Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
Fil: Hubrig, S.. European Southern Observatory Chile; Chile
Fil: Kurtz, D. W.. University of Central Lancashire; Estados Unidos
Fil: Elkin, V.. University of Central Lancashire; Estados Unidos
Fil: Savanov, I.. College Hill; Irlanda
description Asteroseismology has the potential to provide new insights into the physics of stellar interiors. We have obtained Ultraviolet and Visual Echelle Spectrograph high time-resolution observations of the δ Scuti star HD21190 and of the Ap Sr star HD218994 to search for pulsational line profile variations. We report the discovery of a new roAp star, HD218994, with a pulsation period of 14.2min. This is one of the most evolved roAp stars. No rapid pulsations have been found in the spectra of the cool Ap star - δ Scuti star HD21190. However, we detect with unprecedented clarity for a δScuti star moving peaks in the cores of spectral lines that indicate the presence of high-degree non-radial pulsations in this star.
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/11336/214793
Gonzalez, Jorge Federico; Hubrig, S.; Kurtz, D. W.; Elkin, V.; Savanov, I.; Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 384; 3; 12-2008; 1140-1144
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/214793
identifier_str_mv Gonzalez, Jorge Federico; Hubrig, S.; Kurtz, D. W.; Elkin, V.; Savanov, I.; Discovery of pulsational line profile variations in the Delta Scuti star HD21190 and in the Ap Sr star HD218994; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 384; 3; 12-2008; 1140-1144
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/doi/10.1111/j.1365-2966.2007.12779.x
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/384/3/1140/988587
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 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 12.48226

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