Albedo Maps of Comets p/ Halley and p/ Giacobini-Zinner

Details Albedo Maps of Comets p/ Halley and p/ Giacobini-Zinner Albedo Maps of Comets p/ Halley and p/ Giacobini-Zinner

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...187..665h&link_type=abstract

Astronomy and Astrophysics, Vol.187, NO. 1+2/NOV, P. 665, 1987

Astronomy and Astrophysics

Astrophysics

11

Scientific paper

Near-simultaneous infrared and visual images of P/Halley are combined to create a map of the spatial variation of average albedo (which is generally a factor of four larger than the geometric albedo defined by Hanner et al., 1981). The map is compared with a similar map of P/Giacobini-Zinner (P/G-Z) obtained previously. P/G-Z showed a minimum in albedo of 0.07 with an increase by a factor of 2 over an angular distance of 30". The lowest albedos in P/G-Z were offset from the nucleus in the anti-sunward direction, coincident with a dust tail observed in the infrared. The P/Halley albedos are higher than those found for P/G-Z, ranging from 0.2-0.4, but both comets have relatively low albedo in the anti-sunward direction (along the tail). We attribute the albedo distribution to large, dark, fluffy grains confined to the orbital plane close to the nucleus. The high albedo values in P/Halley may be due to enhanced flux in the visual image because of the comet's very small phase angle.

Affiliated with

Also associated with

No associations

Rating

Albedo Maps of Comets p/ Halley and p/ Giacobini-Zinner does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Albedo Maps of Comets p/ Halley and p/ Giacobini-Zinner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Albedo Maps of Comets p/ Halley and p/ Giacobini-Zinner will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1712936