Skip to main content Accessibility help
×
Home
Hostname: page-component-99c86f546-zzcdp Total loading time: 0.27 Render date: 2021-12-02T14:20:31.362Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

7 - Dust particle size evolution

Published online by Cambridge University Press:  24 February 2010

Dániel Apai
Affiliation:
Space Telescope Science Institute, Baltimore
Dante S. Lauretta
Affiliation:
University of Arizona
Get access

Summary

Abstract This chapter describes how the growth of particles from submicron to centimeter sizes in protoplanetary disks is chronicled both by astronomical observations and microscopic imaging of pristine meteoritic material. A growing sample of planet-forming disks at a range of evolutionary stages is available for astronomical remote sensing studies, but limitations of spatial resolution as well as very high optical depths still hide the inner mid-plane of the disks – the exact region where planets are believed to form. Conversely, meteoritic studies currently exclusively sample material from the inner mid-plane of the solar nebula, and the fact that such material can be brought into a laboratory setting allows very detailed studies of its properties. The dust component in the matrices of chondritic meteorites carries a record of continuous processing and modification of fine-grained material during protoplanetary disk evolution that tends to obscure the earliest stages of dust formation, growth, and coagulation. We discuss how knowledge on dust particle size evolution gained from these two very different approaches can be combined to significantly enhance our understanding of the first stages in planet formation.

Solids in protoplanetary disks undergo a growth process resulting in extreme changes in the size distribution of dust particles over time. We know this because the particle size distribution of dust in the interstellar medium (ISM) is so different from that of planets, leftover planetesimals, and dust in our own Solar System; the formation of the Earth from submicron grains corresponds to a change of 12 orders of magnitude! The presence of a large number of extrasolar planets shows that the planet-formation process is relatively common.

Type
Chapter
Information
Protoplanetary Dust
Astrophysical and Cosmochemical Perspectives
, pp. 191 - 229
Publisher: Cambridge University Press
Print publication year: 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)
8
Cited by

Send book to Kindle

To send this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Available formats
×

Send book to Dropbox

To send content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about sending content to Dropbox.

Available formats
×

Send book to Google Drive

To send content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about sending content to Google Drive.

Available formats
×