Millimetre observations of debris disks

Details Millimetre observations of debris disks Millimetre observations of debris disks

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atnf.prop.3201p&link_type=abstract

ATNF proposal C2342, Semester: April, 2010

Physics

Star Formation, Atca

Scientific paper

Since the discovery of the so-called "Vega phenomenon" by IRAS, we know that some relatively 'old' stars systems harbor optically thin, and sometimes large (several 100 AU) dusty disks. These "debris disks" are believed to result from the collidions and/or evaporation of a reservoir of unseen planetesimals, similar to the Kuiper belt or the inner Oort cloud of our solar system. Since different observing wavelengths probe different dust temperatures and therefore different regions of the disks, millimetric observations unveil cold, large grains - dust populations unobservable at shorter wavelengths. Therefore mm observations are the best tracers of the outer edge of the planetesimal population. We propose to use ATCA to detect these cold dust populations around two recently resolved debris disks: HD172555 and HD181327. Both have been resolved at 870 um and thus are known to host cold dust populations but the achieved angular resolution and sensitivities were not sufficient to study in the morphology of the outer disks regions in details. The goal of this proposal is to map with unprecedented angular resolution these two nearby debris disks.

Affiliated with

Also associated with

No associations

Rating

Millimetre observations of debris disks 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 Millimetre observations of debris disks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Millimetre observations of debris disks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1311983