Dust in the 55 Cancri planetary system

Details Dust in the 55 Cancri planetary system Dust in the 55 Cancri planetary system

2000-01-15

arxiv.org/abs/astro-ph/0001275v1

Astronomy and Astrophysics

Astrophysics

8 pages and 2 figures, to appear in the Astrophysical Journal

Scientific paper

10.1086/308942

The presence of debris disks around $\sim$ 1-Gyr-old main sequence stars suggests that an appreciable amount of dust may persist even in mature planetary systems. Here we report the detection of dust emission from 55 Cancri, a star with one, or possibly two, planetary companions detected through radial velocity measurements. Our observations at 850$\mu$m and 450$\mu$m imply a dust mass of 0.0008-0.005 Earth masses, somewhat higher than that in the the Kuiper Belt of our solar system. The estimated temperature of the dust grains and a simple model fit both indicate a central disk hole of at least 10 AU in radius. Thus, the region where the planets are detected is likely to be significantly depleted of dust. Our results suggest that far-infrared and sub-millimeter observations are powerful tools for probing the outer regions of extrasolar planetary systems.

Affiliated with

Also associated with

No associations

Rating

Dust in the 55 Cancri planetary system 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 Dust in the 55 Cancri planetary system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dust in the 55 Cancri planetary system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-700889