The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1

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...

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Autores principales: Méndez, Mariano R., Klis, Michiel van der
Formato: Articulo
Lenguaje:Inglés
Publicado: 2000
Materias:
Ciencias Astronómicas
Accretion, accretion discs
Stars: individual: Sco X-1
Stars: neutron
Stars: oscillations
X-rays: stars
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84393
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84393
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Accretion, accretion discs
Stars: individual: Sco X-1
Stars: neutron
Stars: oscillations
X-rays: stars
spellingShingle Ciencias Astronómicas
Accretion, accretion discs
Stars: individual: Sco X-1
Stars: neutron
Stars: oscillations
X-rays: stars
Méndez, Mariano R.
Klis, Michiel van der
The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1
topic_facet Ciencias Astronómicas
Accretion, accretion discs
Stars: individual: Sco X-1
Stars: neutron
Stars: oscillations
X-rays: stars
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.
format Articulo
Articulo
author Méndez, Mariano R.
Klis, Michiel van der
author_facet Méndez, Mariano R.
Klis, Michiel van der
author_sort Méndez, Mariano R.
title The harmonic and sideband structure of the kilohertz quasi-periodic oscillations in Sco X-1
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 harmonic and sideband structure of the kilohertz quasi-periodic oscillations in sco x-1
publishDate 2000
url http://sedici.unlp.edu.ar/handle/10915/84393
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AT mendezmarianor harmonicandsidebandstructureofthekilohertzquasiperiodicoscillationsinscox1
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bdutipo_str Repositorios
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