New Observations and Models of the Kinematics of the Zodiacal Dust Cloud

Details New Observations and Models of the Kinematics of the Zodiacal Dust Cloud New Observations and Models of the Kinematics of the Zodiacal Dust Cloud

2006-04-11

arxiv.org/abs/astro-ph/0604229v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, to appear in refereed proceedings of 'Dust in Planetary Systems' (ESA), ed. H. Kruger & A. Graps, Sept. 20

Scientific paper

We report on new observations of the motion of zodiacal dust using optical absorption line spectroscopy of zodiacal light. We have measured the change in the profile shape of the scattered solar Mg I 5184 line toward several lines of sight in the ecliptic plane as well as the ecliptic pole. The variation in line centroid and line width as a function of helio-ecliptic longitude show a clear prograde signature and suggest that significant fraction of the dust follows non-circular orbits that are not confined to the ecliptic plane. When combined with dynamical models, the data suggest that the zodiacal dust is largely cometary, rather than asteroidal, in origin.

Affiliated with

Also associated with

No associations

Rating

New Observations and Models of the Kinematics of the Zodiacal Dust Cloud 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 New Observations and Models of the Kinematics of the Zodiacal Dust Cloud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Observations and Models of the Kinematics of the Zodiacal Dust Cloud will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-286119