The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1
- Autores
- Méndez, Mariano R.; Klis, Michiel van der
- Año de publicación
- 2000
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We use data from the Rossi X-ray Timing Explorer to search for harmonics and sidebands of the two simultaneous kilohertz quasi-periodic oscillations (kHz QPOs) in Sco X-1. We do not detect any of these harmonics or sidebands, with 95 per cent confidence upper limits to their power between ∼1 and ∼10 per cent of the power of the upper kHz QPO. The oscillations produced at these frequencies may be attenuated in a scattering corona around the neutron star. We find that upper limits to the unattenuated power of some of the strongest theoretically predicted harmonics and sidebands are as low as ∼2per cent of the unattenuated power of the high-frequency QPO in Sco X-1.
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Ciencias Astronómicas
Accretion, accretion discs
Stars: individual: Sco X-1
Stars: neutron
Stars: oscillations
X-rays: stars - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/84393
Ver los metadatos del registro completo
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The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1Méndez, Mariano R.Klis, Michiel van derCiencias AstronómicasAccretion, accretion discsStars: individual: Sco X-1Stars: neutronStars: oscillationsX-rays: starsWe use data from the <i>Rossi X-ray Timing Explorer</i> to search for harmonics and sidebands of the two simultaneous kilohertz quasi-periodic oscillations (kHz QPOs) in Sco X-1. We do not detect any of these harmonics or sidebands, with 95 per cent confidence upper limits to their power between ∼1 and ∼10 per cent of the power of the upper kHz QPO. The oscillations produced at these frequencies may be attenuated in a scattering corona around the neutron star. We find that upper limits to the unattenuated power of some of the strongest theoretically predicted harmonics and sidebands are as low as ∼2per cent of the unattenuated power of the high-frequency QPO in Sco X-1.Facultad de Ciencias Astronómicas y Geofísicas2000info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf938-942http://sedici.unlp.edu.ar/handle/10915/84393enginfo:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/doi/10.1046/j.1365-8711.2000.03788.xinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-17T09:59:03Zoai:sedici.unlp.edu.ar:10915/84393Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-17 09:59:04.012SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1 |
| title |
The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1 |
| spellingShingle |
The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1 Méndez, Mariano R. Ciencias Astronómicas Accretion, accretion discs Stars: individual: Sco X-1 Stars: neutron Stars: oscillations X-rays: stars |
| title_short |
The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1 |
| title_full |
The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1 |
| title_fullStr |
The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1 |
| title_full_unstemmed |
The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1 |
| title_sort |
The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1 |
| dc.creator.none.fl_str_mv |
Méndez, Mariano R. Klis, Michiel van der |
| author |
Méndez, Mariano R. |
| author_facet |
Méndez, Mariano R. Klis, Michiel van der |
| author_role |
author |
| author2 |
Klis, Michiel van der |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Ciencias Astronómicas Accretion, accretion discs Stars: individual: Sco X-1 Stars: neutron Stars: oscillations X-rays: stars |
| topic |
Ciencias Astronómicas Accretion, accretion discs Stars: individual: Sco X-1 Stars: neutron Stars: oscillations X-rays: stars |
| dc.description.none.fl_txt_mv |
We use data from the <i>Rossi X-ray Timing Explorer</i> to search for harmonics and sidebands of the two simultaneous kilohertz quasi-periodic oscillations (kHz QPOs) in Sco X-1. We do not detect any of these harmonics or sidebands, with 95 per cent confidence upper limits to their power between ∼1 and ∼10 per cent of the power of the upper kHz QPO. The oscillations produced at these frequencies may be attenuated in a scattering corona around the neutron star. We find that upper limits to the unattenuated power of some of the strongest theoretically predicted harmonics and sidebands are as low as ∼2per cent of the unattenuated power of the high-frequency QPO in Sco X-1. Facultad de Ciencias Astronómicas y Geofísicas |
| description |
We use data from the <i>Rossi X-ray Timing Explorer</i> to search for harmonics and sidebands of the two simultaneous kilohertz quasi-periodic oscillations (kHz QPOs) in Sco X-1. We do not detect any of these harmonics or sidebands, with 95 per cent confidence upper limits to their power between ∼1 and ∼10 per cent of the power of the upper kHz QPO. The oscillations produced at these frequencies may be attenuated in a scattering corona around the neutron star. We find that upper limits to the unattenuated power of some of the strongest theoretically predicted harmonics and sidebands are as low as ∼2per cent of the unattenuated power of the high-frequency QPO in Sco X-1. |
| publishDate |
2000 |
| dc.date.none.fl_str_mv |
2000 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/84393 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/0035-8711 info:eu-repo/semantics/altIdentifier/doi/10.1046/j.1365-8711.2000.03788.x |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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