Improved Zodiacal Light Modeling

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

Detailed physical models of the Inter-Planetary Dust (IPD) cloud and the resulting zodiacal light emission by both the DIRBE team (Kelsall et al. (1998) ) and Wright (1998), for subtraction from the Cosmic InfraRed Background measurements of the DIRBE experiment on the COBE satellite, assume a single emissivity and/or albedo at each wavelength, for the entire IPD cloud. Using a different physical model, and fitting to optical observations by Clementine, Hahn et al. (2002) find that in the ecliptic, 45% of the dust comes from asteroids and Jupiter Family Comets, while at least 89% of that enclosed by a radius 1 AU sphere is of cometary origin. These observations are at optical wavelengths, and only cover the inner solar system, but they still suggest that it may be important to allow for spatially dependent albedo and emissivity when calculating zodiacal model brightness. Here we adjust the Wright (1998) model by allowing each component of the IPD cloud (i.e. the main cloud, the circumsolar ring, and the IRAS dust bands) to have an independent albedo and emissivity, added to the model as free parameters in the fit to intensity variations in the DIRBE weekly maps.
The COBE data sets were developed by the NASA Goddard Space Flight Center under the guidance of the COBE Science Working Group .

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Improved Zodiacal Light Modeling 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 Improved Zodiacal Light Modeling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved Zodiacal Light Modeling will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1287808

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.