English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

It has long been suspected that metal polluted white dwarfs (types DAZ, DBZ,and DZ) and white dwarfs with dusty disks possess planetary systems, but aspecific physical mechanism by which planetesimals are perturbed close to awhite dwarf has not yet been fully posited. In this paper we demonstrate thatmass loss from a central star during post main sequence evolution can sweepplanetesimals into interior mean motion resonances with a single giant planet.These planetesimals are slowly removed through chaotic excursions ofeccentricity that in time create radial orbits capable of tidally disruptingthe planetesimal. Numerical N-body simulations of the Solar System show that asufficient number of planetesimals are perturbed to explain white dwarfs withboth dust and metal pollution, provided other white dwarfs have more massiverelic asteroid belts. Our scenario requires only one Jupiter-sized planet and asufficient number of asteroids near its 2:1 interior mean motion resonance.Finally, we show that once a planetesimal is perturbed into a tidal crossingorbit, it will become disrupted after the first pass of the white dwarf, wherea highly eccentric stream of debris forms the main reservoir for dust producingcollisions. These simulations, in concert with observations of white dwarfs,place interesting limits on the frequency of planetary systems around mainsequence stars, the frequency of planetesimal belts, and the probability thatdust may obscure future terrestrial planet finding missions.

The Link Between Planetary Systems, Dusty White Dwarfs, and Metal Polluted White Dwarfs