An Overview of Cometary and AsteroidalDebris Disks Around Main Sequence Stars

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

A variety of Spitzer programs have investigated the incidence of debris disks around main sequence stars. We summarize the overall properties of the disks and their host stars which include spectral types A-M and ages from 10 Myr to 10 Gyr. Important results include an overall incidence of 13±3% for Kuiper Belt analogs around mature main sequence stars at the Spitzer level of 10 times the level of our zodiacal cloud; typical dust temperatures in the range 70-100 K; the very low incidence (<2%) of stars with hot 300 K dust at the Spitzer limit of 1,000 times the level of our zodiacal cloud; a strong dependence on the incidence of disks with stellar age up to 0.5 Gyr but with little age dependence for older stars; a weak dependence on spectral type for stars hotter than K0, but a surprising lack of excesses for cooler stars; a lack of correlation with metallicity in contrast with the strong correlation between the incidence of planets and metallicity; and an increased incidence of debris disks in binary systems. While many of these correlations will be the subject of individual talks at this meeting, this presentation will give an overall context for the debris disk phenomena, its relationship to the formation and evolution of planetary systems, and the importance of debris disks to the eventual detectability of individual planets.
This work was funded in part by NASA at the University of Arizona and the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.

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

An Overview of Cometary and AsteroidalDebris Disks Around Main Sequence Stars 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 An Overview of Cometary and AsteroidalDebris Disks Around Main Sequence Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An Overview of Cometary and AsteroidalDebris Disks Around Main Sequence Stars will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-998725

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