Bibcode
Arribas, S.; Martinez Roger, C.
Referencia bibliográfica
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 70, no. 3, Sept. 1987, p. 303-310.
Fecha de publicación:
9
1987
Número de citas
47
Número de citas referidas
45
Descripción
Infrared magnitudes in the J, H, K and L bands for 64 metal-deficient
stars spanning a wide range in effective temperature, luminosity and
metal content are presented. An accuracy of 0.02 magnitude is obtained
for the JHK bands and 0.03 for the L filter. Infrared-infrared and
optical-infrared colour-colour diagrams are discussed and compared with
the mean intrinsic tracks for Population I stars. It is concluded that
infrared colours are not notably dependent on metallicity, with some
exceptions for the reddest giants, which can be also interpreted by
residual effects in the transformation equations between different
systems. The authors also discuss briefly the near infrared photometric
system of the Observatorio del Teide, from the Instituto de Astrofisica
de Canarias.