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Revista mexicana de astronomía y astrofísica
versão impressa ISSN 0185-1101
Rev. mex. astron. astrofis vol.48 no.2 Ciudad de México Out. 2012
The Spectroscopic orbits of HD 23052 and HD 90512
C. D. Scarfe1,3 and R. F. Griffin2
1 Department of Physics and Astronomy, University of Victoria, Victoria, BC V8W 3P6, Canada (scarfe@uvic.ca).
2 The Observatories, Madingley Road, Cambridge, CB3 OHA, UK (rfg@ast.cam.ac.uk).
3 Guest worker, Dominion Astrophysical Observatory, Herzberg Institute of Astrophysics, National Research Council of Canada.
Received 2012 May 7.
Accepted 2012 July 25.
RESUMEN
Presentamos observaciones de velocidades radiales obtenidas en el DAO y en Cambridge, a partir de las cuales obtenemos elementos orbitales. HD 23052 es un objeto tipo G de secuencia principal, que se ha considerado como análogo al Sol. Su órbita tiene un período de cerca de tres años. HD 90512 es una gigante de tipo G, en una órbita casi circular con un período de poco más de 100 días.
ABSTRACT
We present radialvelocity observations from DAO and Cambridge, from which we derive orbital elements. HD 23052 is a Gtype mainsequence object which has been regarded as a solar analogue, in an orbit of period nearly three years. HD 90512 is a Gtype giant in a nearly circular orbit with a period just over 100 days.
Key Words: binaries: spectroscopic.
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