Optical spectroscopy of V1123 Tauri and its visual companion

Bibcode
2009NewA...14..149G
DOI
10.1016/j.newast.2008.06.004
Gutiérrez, Carlos M.
Referencia bibliográfica

New Astronomy, Volume 14, Issue 2, p. 149-151.

Fecha de publicación:
2
2009
Revista
New Astronomy
Número de autores
1
Número de autores del IAC
1
Número de citas
2
Número de citas referidas
2
Descripción
We present long-slit intermediate resolution spectroscopy of the visual binary V1123. We confirm that component A is a W UMa eclipsing star with spectral type G0V, while component B is a K0V. We infer a distance to the system of 125 pc, and then a projected separation between both components of 520 AU. The difference in radial velocities of components A and B is ⩽20 km s-1. At the distance od the system, the flux measured by ROSAT for the component A, corresponds to an X-ray luminosity of Lx=30.23ergs which is within typical values for W UMa systems.
Proyectos relacionados
Mapa de todo el cielo mostrando la distribución espacial de las anisotropias primarias del Fondo Cósmico de Microondas (generadas sólo 380,000 años después del Big Bang) extraído de las observaciones del satélite Planck
Anisotropía del Fondo Cósmico de Microondas
El objetivo general de este proyecto es determinar y estudiar las variaciones espaciales y espectrales en la temperatura del Fondo Cósmico de Microondas y en su Polarización en un amplio rango de escalas angulares que van desde pocos minutos de arco hasta varios grados. Las fluctuaciones primordiales en la densidad de materia, que dieron origen a
Rafael
Rebolo López
En ejecución
Tipo
Con árbitro
Cosmología y Astropartículas (CYA)

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