Bibcode
Lazaro, C.; Garzon, F.; Arevalo, M. J.
Referencia bibliográfica
Astronomy and Astrophysics, Vol.187, NO. 1+2/NOV, P. 605, 1987
Fecha de publicación:
11
1987
Revista
Número de citas
0
Número de citas referidas
0
Descripción
We present low resolution maps, of a 4' × 0'.5 region, of comet
Halley, in photometric bands J and K, a central scan in the H band and
JHKL photometry taken with the 1.5 m Sanchez-Magro Telescope of the
Instituto de Astrofisica de Canarias. We obtain central and integrated
magnitudes and colours and discuss its variation with distance from the
nucleus. The black-body colour temperature of the grains is found to be
˜ 545 K, significantly greater than the black-body equilibrium
temperature (228 K). The profile of the scans seem to follow an
r-2 density law in the dust distribution, although the
central core has a much steeper density law.