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
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- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/219538
Ver los metadatos del registro completo
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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 Técnicas2025-10-22T11:11:47Zoai: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:34982025-10-22 11:11:48.003CONICET 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 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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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 |
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http://hdl.handle.net/11336/219538 |
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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 |
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eng |
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EDP Sciences |
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