Physical models of Comet Halley based upon qualitative data from the 1910 apparition

Details Physical models of Comet Halley based upon qualitative data from the 1910 apparition Physical models of Comet Halley based upon qualitative data from the 1910 apparition

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979esasp.153...35n&link_type=abstract

In ESA Comet Halley Micrometeoroid Hazard Workshop p 35-50 (SEE N80-22200 12-91)

Astronomy and Astrophysics

Astrophysics

11

Astronomical Models, Comet Nuclei, Halley'S Comet, Hydrogen Production, Particle Size Distribution, Astrophysics, Brightness, Concentration (Composition), Interplanetary Dust, Tables (Data)

Scientific paper

A semi-empirical theory was developed, tying the hydrogen production rate of a comet to its visual light curve. Two unknown constants, which are essentially the efficiencies of these two processes, are derived from the comets for which quantitative data exist. This theory has been applied to P/Halley, using the light curve of Yeomans, which was derived from the original 1910 observations, with aperture corrections applied. Given the hydrogen production rate, it is assumed that N(H20) = 0.5 N(H) and that there is 0.2 N(H20) of other species. From several converging lines of evidence the mass of dust is taken as half the mass of gas. The Sekanina-Miller distribution function of particle size is used. Particle velocities are calculated using Delsemmes version of the Probstein theory. From these, near nucleus dust density, flux, etc. are calculated. Dust envelope sizes are calculated from the old mechanical theory of tails. Extreme models are calculated from the old mechanical theory of tails. Extreme models are also furnished based upon a "sum-of-negative-tolerance" approach.

Affiliated with

Also associated with

No associations

Rating

Physical models of Comet Halley based upon qualitative data from the 1910 apparition 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 Physical models of Comet Halley based upon qualitative data from the 1910 apparition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical models of Comet Halley based upon qualitative data from the 1910 apparition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1387822