V. G. Orlov*, V. V. Voitsekhovich**, J. L. Rivera***, C. A. Guerrero****, and F. Ortiz*****
Instituto de Astronomía, Universidad Nacional Autónoma de México, Apdo. Postal 70–264, Cd. Universitaria, 04510 México D. F., México (**** cguerrero@astroscu.unam.mx, * orlov@astroscu.unam.mx, ***** fortiz@astroscu.unam.mx, *** jrivera@astroscu.unam.mx, ** voisteko@astroscu.unam.mx).
Received 2010 March 27
Accepted 2010 May 27
RESUMEN
]]> Presentamos mediciones interferométricas de motas para estrellas binarias, obtenidas en junio de 2009 en el telescopio de 1.5 m del Observatorio Astronómico Nacional en San Pedro Mártir (México). Nuestros datos comprenden 189 mediciones de ángulos de posición y separaciones de 144 sistemas. Las separaciones angulares medidas abarcan desde 0".16 hasta 3".64. La magnitud máxima de la componente más brillante es de 10.96. El error medio en las separaciones es de 0".02 y en los ángulos de posición de 1.5°. Algunos ángulos de posición se determinaron con la ambigüedad usual de 180°.
ABSTRACT
We present speckle interferometric measurements of binary stars made during June of 2009 with the 1.5 m telescope of the Observatorio Astronómico Nacional at SPM (México). The data contain 189 position angle and separation measures of 144 systems. The measured angular separations range from 0".16 to 3".64. The máximum magnitude of the brighter component is 10.96. The mean error in separation is 0".02 and in the position angles 1.5°. Some of the position angles were determined with the usual 180° ambiguity.
Key Words: binaries: visual — stars: fundamental parameters — techniques: high angular resolution — techniques: interferometric.
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ACKNOWLEDGMENTS
The speckle interferometry program at the OAN telescopes is supported by the Dirección General de Asuntos del Personal Académico (Universidad Nacional Autónoma de México, Mexico) under projects IN104910 and IN113308 (PAPIIT).
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