Physical processes in comets

Details Physical processes in comets Physical processes in comets

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991plas.rept...91n&link_type=abstract

In NASA, Washington, Reports of Planetary Astronomy, 1991 p 91-92 (SEE N92-12792 03-89)

Astronomy and Astrophysics

Astronomy

Astronomical Spectroscopy, Comet Nuclei, Comets, Cosmic Dust, Infrared Astronomy, Interstellar Gas, Physical Properties, Brightness, Cameras, Charge Coupled Devices, Data Reduction, Fragmentation, Infrared Photometry, Infrared Telescopes, Reflectors

Scientific paper

Post-Halley comets are known to be irregular objects with most nucleus activity very localized and with the dust coma capable of fragmentation and apparently being a source of gas. Older, 1-D strategies which assume steady isotropic outflow of material can give poor time-and-space averaged results, at best. With 2-D data, images through interference filters, it is hoped that: dust structures can be seen that give evidence of the proper geometry for data reduction; gradients along the axes of symmetry and evidence of fragmentation can be studied; and that evidence for gas abundance gradients associated with the dust can be found. High quality data from brighter comets can then be used to suggest improved data reduction procedures for fainter ones. To obtain such data, large image-quality interference filters were procured for use with a charge coupled device (CCD) camera at Lick Observatory, where the scale of the 1 m Nickel reflector is ideal for brighter comets. Whenever possible, data is taken simultaneously with other telescopes and equipment, especially spectroscopy at the Lick 3 m or infrared photometry at the Infrared Telescope Facility (IRTF) on Mauna Kea.

Affiliated with

Also associated with

No associations

Rating

Physical processes in comets 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 processes in comets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical processes in comets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1876946