XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen)

Autores
Luna, Gerardo Juan Manuel; Diaz, M. P.; Brickhouse, N. S.; Moraes, M.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report the results from the temporal and spectral analysis of an XMM–Newton observation of Nova Centauri 1986 (V842 Cen). We detect a period at 3.51 ± 0.4 h in the EPIC data and at 4.0 ± 0.8 h in the Optical Monitor (OM) data. The X-ray spectrum is consistent with the emission from an absorbed thin thermal plasma with a temperature distribution given by an isobaric cooling flow. The maximum temperature of the cooling flow model is kTmax = 43+23 −12 keV. Such a high temperature can be reached in a shocked region and, given the periodicity detected, most likely arises in a magnetically channelled accretion flow characteristic of intermediate polars. The pulsed fraction of the 3.51-h modulation decreases with energy as observed in the X-ray light curves of magnetic cataclysmic variables, possibly due either to occultation of the accretion column by the white dwarf body or phase-dependent to absorption. We do not find the 57-s white dwarf spin period, with a pulse amplitude of 4 mmag, reported by Woudt et al. in either the OM data, which are sensitive to pulse amplitudes 0.03 mag, or the EPIC data, sensitive to pulse fractions p 14 ± 2 per cent.
Fil: Luna, Gerardo Juan Manuel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Diaz, M. P.. Universidade de Sao Paulo; Brasil
Fil: Brickhouse, N. S.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Moraes, M.. Universidade de Sao Paulo; Brasil
Materia
novae
cataclysmic variables
X-rays
general
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:11336/19303
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/19303
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen)Luna, Gerardo Juan ManuelDiaz, M. P.Brickhouse, N. S.Moraes, M.novaecataclysmic variablesX-raysgeneralhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report the results from the temporal and spectral analysis of an XMM–Newton observation of Nova Centauri 1986 (V842 Cen). We detect a period at 3.51 ± 0.4 h in the EPIC data and at 4.0 ± 0.8 h in the Optical Monitor (OM) data. The X-ray spectrum is consistent with the emission from an absorbed thin thermal plasma with a temperature distribution given by an isobaric cooling flow. The maximum temperature of the cooling flow model is kTmax = 43+23 −12 keV. Such a high temperature can be reached in a shocked region and, given the periodicity detected, most likely arises in a magnetically channelled accretion flow characteristic of intermediate polars. The pulsed fraction of the 3.51-h modulation decreases with energy as observed in the X-ray light curves of magnetic cataclysmic variables, possibly due either to occultation of the accretion column by the white dwarf body or phase-dependent to absorption. We do not find the 57-s white dwarf spin period, with a pulse amplitude of 4 mmag, reported by Woudt et al. in either the OM data, which are sensitive to pulse amplitudes 0.03 mag, or the EPIC data, sensitive to pulse fractions p 14 ± 2 per cent.Fil: Luna, Gerardo Juan Manuel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Diaz, M. P.. Universidade de Sao Paulo; BrasilFil: Brickhouse, N. S.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Moraes, M.. Universidade de Sao Paulo; BrasilWiley2012-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/19303Luna, Gerardo Juan Manuel; Diaz, M. P.; Brickhouse, N. S.; Moraes, M.; XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen); Wiley; Monthly Notices of the Royal Astronomical Society; 423; 1; 6-2012; L75-L780035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1745-3933.2012.01260.xinfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1203.4804info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-lookup/doi/10.1111/j.1745-3933.2012.01260.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:44:44Zoai:ri.conicet.gov.ar:11336/19303instacron: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:34982025-09-03 09:44:45.165CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen)
title XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen)
spellingShingle XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen)
Luna, Gerardo Juan Manuel
novae
cataclysmic variables
X-rays
general
title_short XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen)
title_full XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen)
title_fullStr XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen)
title_full_unstemmed XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen)
title_sort XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen)
dc.creator.none.fl_str_mv Luna, Gerardo Juan Manuel
Diaz, M. P.
Brickhouse, N. S.
Moraes, M.
author Luna, Gerardo Juan Manuel
author_facet Luna, Gerardo Juan Manuel
Diaz, M. P.
Brickhouse, N. S.
Moraes, M.
author_role author
author2 Diaz, M. P.
Brickhouse, N. S.
Moraes, M.
author2_role author
author
author
dc.subject.none.fl_str_mv novae
cataclysmic variables
X-rays
general
topic novae
cataclysmic variables
X-rays
general
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 report the results from the temporal and spectral analysis of an XMM–Newton observation of Nova Centauri 1986 (V842 Cen). We detect a period at 3.51 ± 0.4 h in the EPIC data and at 4.0 ± 0.8 h in the Optical Monitor (OM) data. The X-ray spectrum is consistent with the emission from an absorbed thin thermal plasma with a temperature distribution given by an isobaric cooling flow. The maximum temperature of the cooling flow model is kTmax = 43+23 −12 keV. Such a high temperature can be reached in a shocked region and, given the periodicity detected, most likely arises in a magnetically channelled accretion flow characteristic of intermediate polars. The pulsed fraction of the 3.51-h modulation decreases with energy as observed in the X-ray light curves of magnetic cataclysmic variables, possibly due either to occultation of the accretion column by the white dwarf body or phase-dependent to absorption. We do not find the 57-s white dwarf spin period, with a pulse amplitude of 4 mmag, reported by Woudt et al. in either the OM data, which are sensitive to pulse amplitudes 0.03 mag, or the EPIC data, sensitive to pulse fractions p 14 ± 2 per cent.
Fil: Luna, Gerardo Juan Manuel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Diaz, M. P.. Universidade de Sao Paulo; Brasil
Fil: Brickhouse, N. S.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Moraes, M.. Universidade de Sao Paulo; Brasil
description We report the results from the temporal and spectral analysis of an XMM–Newton observation of Nova Centauri 1986 (V842 Cen). We detect a period at 3.51 ± 0.4 h in the EPIC data and at 4.0 ± 0.8 h in the Optical Monitor (OM) data. The X-ray spectrum is consistent with the emission from an absorbed thin thermal plasma with a temperature distribution given by an isobaric cooling flow. The maximum temperature of the cooling flow model is kTmax = 43+23 −12 keV. Such a high temperature can be reached in a shocked region and, given the periodicity detected, most likely arises in a magnetically channelled accretion flow characteristic of intermediate polars. The pulsed fraction of the 3.51-h modulation decreases with energy as observed in the X-ray light curves of magnetic cataclysmic variables, possibly due either to occultation of the accretion column by the white dwarf body or phase-dependent to absorption. We do not find the 57-s white dwarf spin period, with a pulse amplitude of 4 mmag, reported by Woudt et al. in either the OM data, which are sensitive to pulse amplitudes 0.03 mag, or the EPIC data, sensitive to pulse fractions p 14 ± 2 per cent.
publishDate 2012
dc.date.none.fl_str_mv 2012-06
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/11336/19303
Luna, Gerardo Juan Manuel; Diaz, M. P.; Brickhouse, N. S.; Moraes, M.; XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen); Wiley; Monthly Notices of the Royal Astronomical Society; 423; 1; 6-2012; L75-L78
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/19303
identifier_str_mv Luna, Gerardo Juan Manuel; Diaz, M. P.; Brickhouse, N. S.; Moraes, M.; XMM-Newton EPIC and OM observation of Nova Centauri 1986 (V842 Cen); Wiley; Monthly Notices of the Royal Astronomical Society; 423; 1; 6-2012; L75-L78
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.1745-3933.2012.01260.x
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1203.4804
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-lookup/doi/10.1111/j.1745-3933.2012.01260.x
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
publisher.none.fl_str_mv Wiley
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
_version_ 1842268685200261120
score 13.13397

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