K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810

Autores
Luna, Gerardo Juan Manuel
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
I analyze the K2 and TESS data taken in 2016, 2019, and 2021 of the symbiotic X-ray binaries GX 1+4 and IGR J16194-2810. GX 1+4 consists of a pulsar accreting from a red giant companion in a 1160-day orbit. Since 1984, the pulsar has shown a continuous spin-down rate of P = -0.1177(3) mHZ yr-1. I report the detection of the spin period at an average value of 180.426(1) seconds as observed with the K2 mission and confirm that the spin period continues to increase at a rate of ∼1.61× 10-7 s s-1. The K2 and hard X-rays, as observed with Swift/BAT, varied in tandem, in agreement with proposals from other authors that the optical light arises from reprocessed X-ray emission. In the case of IGR J16194-2810, the X-ray and optical spectroscopy have been interpreted as arising from a neutron star accreting from an M2 III red giant companion. Its orbital period is unknown, though I report here the detection of a modulation with a period of 242.837 min and interpret it as the neutron star spin period. IGR J16194-2810 is thus the second symbiotic X-ray binary whose spin period has been detected in optical wavelengths. This period, however, was only detected during the TESS observations of Sector 12 in 2019. The non-detection of this modulation during the observations of Sector 39 in 2021 is perhaps related to a low inclination of the orbit.
Fil: Luna, Gerardo Juan Manuel. Universidad Nacional de Hurlingham.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
BINARIES: SYMBIOTIC
STARS: INDIVIDUAL: GX 1+4
STARS: INDIVIDUAL: IGR J16194-2810
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:11336/219538

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spelling K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810Luna, Gerardo Juan ManuelBINARIES: SYMBIOTICSTARS: INDIVIDUAL: GX 1+4STARS: INDIVIDUAL: IGR J16194-2810https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1I analyze the K2 and TESS data taken in 2016, 2019, and 2021 of the symbiotic X-ray binaries GX 1+4 and IGR J16194-2810. GX 1+4 consists of a pulsar accreting from a red giant companion in a 1160-day orbit. Since 1984, the pulsar has shown a continuous spin-down rate of P = -0.1177(3) mHZ yr-1. I report the detection of the spin period at an average value of 180.426(1) seconds as observed with the K2 mission and confirm that the spin period continues to increase at a rate of ∼1.61× 10-7 s s-1. The K2 and hard X-rays, as observed with Swift/BAT, varied in tandem, in agreement with proposals from other authors that the optical light arises from reprocessed X-ray emission. In the case of IGR J16194-2810, the X-ray and optical spectroscopy have been interpreted as arising from a neutron star accreting from an M2 III red giant companion. Its orbital period is unknown, though I report here the detection of a modulation with a period of 242.837 min and interpret it as the neutron star spin period. IGR J16194-2810 is thus the second symbiotic X-ray binary whose spin period has been detected in optical wavelengths. This period, however, was only detected during the TESS observations of Sector 12 in 2019. The non-detection of this modulation during the observations of Sector 39 in 2021 is perhaps related to a low inclination of the orbit.Fil: Luna, Gerardo Juan Manuel. Universidad Nacional de Hurlingham.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaEDP Sciences2023-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/219538Luna, Gerardo Juan Manuel; K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810; EDP Sciences; Astronomy and Astrophysics; 676; 7-2023; 1-50004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202347177info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202347177info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:43:10Zoai:ri.conicet.gov.ar:11336/219538instacron: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:34982025-09-29 09:43:10.815CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810
title K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810
spellingShingle K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810
Luna, Gerardo Juan Manuel
BINARIES: SYMBIOTIC
STARS: INDIVIDUAL: GX 1+4
STARS: INDIVIDUAL: IGR J16194-2810
title_short K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810
title_full K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810
title_fullStr K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810
title_full_unstemmed K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810
title_sort K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810
dc.creator.none.fl_str_mv Luna, Gerardo Juan Manuel
author Luna, Gerardo Juan Manuel
author_facet Luna, Gerardo Juan Manuel
author_role author
dc.subject.none.fl_str_mv BINARIES: SYMBIOTIC
STARS: INDIVIDUAL: GX 1+4
STARS: INDIVIDUAL: IGR J16194-2810
topic BINARIES: SYMBIOTIC
STARS: INDIVIDUAL: GX 1+4
STARS: INDIVIDUAL: IGR J16194-2810
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv I analyze the K2 and TESS data taken in 2016, 2019, and 2021 of the symbiotic X-ray binaries GX 1+4 and IGR J16194-2810. GX 1+4 consists of a pulsar accreting from a red giant companion in a 1160-day orbit. Since 1984, the pulsar has shown a continuous spin-down rate of P = -0.1177(3) mHZ yr-1. I report the detection of the spin period at an average value of 180.426(1) seconds as observed with the K2 mission and confirm that the spin period continues to increase at a rate of ∼1.61× 10-7 s s-1. The K2 and hard X-rays, as observed with Swift/BAT, varied in tandem, in agreement with proposals from other authors that the optical light arises from reprocessed X-ray emission. In the case of IGR J16194-2810, the X-ray and optical spectroscopy have been interpreted as arising from a neutron star accreting from an M2 III red giant companion. Its orbital period is unknown, though I report here the detection of a modulation with a period of 242.837 min and interpret it as the neutron star spin period. IGR J16194-2810 is thus the second symbiotic X-ray binary whose spin period has been detected in optical wavelengths. This period, however, was only detected during the TESS observations of Sector 12 in 2019. The non-detection of this modulation during the observations of Sector 39 in 2021 is perhaps related to a low inclination of the orbit.
Fil: Luna, Gerardo Juan Manuel. Universidad Nacional de Hurlingham.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description I analyze the K2 and TESS data taken in 2016, 2019, and 2021 of the symbiotic X-ray binaries GX 1+4 and IGR J16194-2810. GX 1+4 consists of a pulsar accreting from a red giant companion in a 1160-day orbit. Since 1984, the pulsar has shown a continuous spin-down rate of P = -0.1177(3) mHZ yr-1. I report the detection of the spin period at an average value of 180.426(1) seconds as observed with the K2 mission and confirm that the spin period continues to increase at a rate of ∼1.61× 10-7 s s-1. The K2 and hard X-rays, as observed with Swift/BAT, varied in tandem, in agreement with proposals from other authors that the optical light arises from reprocessed X-ray emission. In the case of IGR J16194-2810, the X-ray and optical spectroscopy have been interpreted as arising from a neutron star accreting from an M2 III red giant companion. Its orbital period is unknown, though I report here the detection of a modulation with a period of 242.837 min and interpret it as the neutron star spin period. IGR J16194-2810 is thus the second symbiotic X-ray binary whose spin period has been detected in optical wavelengths. This period, however, was only detected during the TESS observations of Sector 12 in 2019. The non-detection of this modulation during the observations of Sector 39 in 2021 is perhaps related to a low inclination of the orbit.
publishDate 2023
dc.date.none.fl_str_mv 2023-07
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/11336/219538
Luna, Gerardo Juan Manuel; K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810; EDP Sciences; Astronomy and Astrophysics; 676; 7-2023; 1-5
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/219538
identifier_str_mv Luna, Gerardo Juan Manuel; K2 and TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810; EDP Sciences; Astronomy and Astrophysics; 676; 7-2023; 1-5
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202347177
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202347177
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 EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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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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