Evidences of spin-orbit resonance among spectroscopic binary stars

A spin-orbit resonance occurs when the periods of rotation and orbital revolution of a celestial body have a ratio which commensurate and this is stable. Observations of the rotational synchronize in binary stars of few days periods and circular orbits confirm 1/1 spin-orbit resonance. Also, observa...

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Detalles Bibliográficos
Autor principal: Troche-Boggino, A.E.
Formato: Articulo Comunicacion
Lenguaje:Español
Publicado: 1987
Materias:
Astronomía
Galaxia
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/141442
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-141442
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Astronomía
Galaxia
spellingShingle Astronomía
Galaxia
Troche-Boggino, A.E.
Evidences of spin-orbit resonance among spectroscopic binary stars
topic_facet Astronomía
Galaxia
description A spin-orbit resonance occurs when the periods of rotation and orbital revolution of a celestial body have a ratio which commensurate and this is stable. Observations of the rotational synchronize in binary stars of few days periods and circular orbits confirm 1/1 spin-orbit resonance. Also, observations of the rotational synchronism at periastron in eccentric binaries whose eccentricities satisfy a criterion for spin-orbit resonance, indicate resonance values larger than 1/1. On the other hand, the histograms made by the present author with data from the Seventh Catalogue of the Orbital Elements of binaries whose revolution periods are between 10 to 30 days, shown an unusual accumulation of stars near the eccentricity e=0.19, which belongs to 3/2 spin-orbit resonance. We presume this confirms such resonance. Furthermore, our histograms suggest some accumulation of stars near the eccentricity, e=0.30, which belongs to 5/2 spin-orbit resonance.
format Articulo
Comunicacion
author Troche-Boggino, A.E.
author_facet Troche-Boggino, A.E.
author_sort Troche-Boggino, A.E.
title Evidences of spin-orbit resonance among spectroscopic binary stars
title_short Evidences of spin-orbit resonance among spectroscopic binary stars
title_full Evidences of spin-orbit resonance among spectroscopic binary stars
title_fullStr Evidences of spin-orbit resonance among spectroscopic binary stars
title_full_unstemmed Evidences of spin-orbit resonance among spectroscopic binary stars
title_sort evidences of spin-orbit resonance among spectroscopic binary stars
publishDate 1987
url http://sedici.unlp.edu.ar/handle/10915/141442
work_keys_str_mv AT trochebogginoae evidencesofspinorbitresonanceamongspectroscopicbinarystars
bdutipo_str Repositorios
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