IANIGLA   20881
INSTITUTO ARGENTINO DE NIVOLOGIA, GLACIOLOGIA Y CIENCIAS AMBIENTALES
Unidad Ejecutora - UE
artículos
Título:
The distance to the Galactic center determined by A-F stars
Autor/es:
BRANHAM, RICHARD L. JR.
Revista:
ASTROPHYSICS AND SPACE SCIENCE
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2015
ISSN:
0004-640X
Resumen:
The distance from the sun to the center ofthe Galaxy R0 remains a fundamental parameter forGalactic structure. This study uses 36,061 A and Fstars of all luminosity classes with position, parallax,and proper motion taken from the Hipparcos catalogand radial velocities from the Wilson and StrasbourgData Center catalogs. The nonlinear kinematical equationsof condition are solved by the Nelder-Mead simplexalgorithm and give R0 =7.68±0.07 kpc. Therandomness of the residuals, calculated by a runs testas 91.9% probable, shows that the kinematical modelyields satisfactory results.
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