Low Resolution Mapping of Comet p/ Halley in the Near Infrared

Lazaro, C.; Garzon, F.; Arevalo, M. J.
Bibliographical reference

Astronomy and Astrophysics, Vol.187, NO. 1+2/NOV, P. 605, 1987

Advertised on:
11
1987
Number of authors
3
IAC number of authors
3
Citations
0
Refereed citations
0
Description
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.
Type