We present infrared J, H and K observations of 69 local galactic halo stars. We produce the two colour (JHK) and the colour magnitude (K versus (J-K)) diagrams for this stellar sample and compare them with the same diagrams for the stellar populations in the globular clusters M3, M13, M92 and 47 Tucanae and in the old open cluster M67; we also compare these diagrams with those for the stellar population in the galactic bulge.
Revista Mexicana de Astronomia y Astrofisica
- Pub Date:
- April 1997