Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Generating metal-polluting debris in white dwarf planetary systems from small-impact crater ejecta

Tools
- Tools
+ Tools

Kurosawa, Kosuke and Veras, Dimitri (2020) Generating metal-polluting debris in white dwarf planetary systems from small-impact crater ejecta. Monthly Notices of the Royal Astronomical Society . staa621. doi:10.1093/mnras/staa621 (In Press)

[img]
Preview
PDF
WRAP-generating-metal-polluting-debris-white-dwarf-small-crater-ejecta-Veras-2020.pdf - Accepted Version - Requires a PDF viewer.

Download (1556Kb) | Preview
Official URL: http://dx.doi.org/10.1093/mnras/staa621

Request Changes to record.

Abstract

Metal pollution in white dwarf photospheres originates from the accretion of some combination of planets, moons, asteroids, comets, boulders, pebbles and dust. When large bodies reside in dynamically stagnant locations – unable themselves to pollute nor even closely approach the white dwarf – then smaller reservoirs of impact debris may become a complementary or the primary source of metal pollutants. Here, we take a first step towards exploring this possibility by computing limits on the recoil mass that escapes the gravitational pull of the target object following a single impact onto an atmosphere-less surface. By considering vertical impacts only with the full-chain analytical prescription from Kurosawa & Takada (2019), we provide lower bounds for the ejected mass for basalt, granite, iron and water-rich target objects across the radii range 100 − 3 km. Our use of the full-chain prescription as opposed to physical experiments or hydrocode simulations allows us to quickly sample a wide range of parameter space appropriate to white dwarf planetary systems. Our numerical results could be used in future studies to constrain freshly-generated small debris reservoirs around white dwarfs given a particular planetary system architecture, bombardment history, and impact geometries.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Asteroids, White dwarf stars, Celestial mechanics, Protoplanetary disks
Journal or Publication Title: Monthly Notices of the Royal Astronomical Society
Publisher: Oxford University Press
ISSN: 1745-3933
Official Date: 6 March 2020
Dates:
DateEvent
6 March 2020Published
25 February 2020Accepted
Date of first compliant deposit: 12 March 2020
Article Number: staa621
DOI: 10.1093/mnras/staa621
Status: Peer Reviewed
Publication Status: In Press
Publisher Statement: This is a pre-copyedited, author-produced version of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record Dimitri Veras, Kosuke Kurosawa, Generating metal-polluting debris in white dwarf planetary systems from small-impact crater ejecta, Monthly Notices of the Royal Astronomical Society, , staa621, is available online at: https://doi.org/10.1093/mnras/staa621
Access rights to Published version: Restricted or Subscription Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
ST/P003850/1[STFC] Science and Technology Facilities Councilhttp://dx.doi.org/10.13039/501100000271
Habitability Global Research Priorities (GRP) ProgrammeUniversity of Warwickhttp://dx.doi.org/10.13039/501100000741
JP17H01176[JSPS] Japan Society for the Promotion of Sciencehttp://dx.doi.org/10.13039/501100001691
JP17H01175[JSPS] Japan Society for the Promotion of Sciencehttp://dx.doi.org/10.13039/501100001691
JP17K18812[JSPS] Japan Society for the Promotion of Sciencehttp://dx.doi.org/10.13039/501100001691
JP17H02990[JSPS] Japan Society for the Promotion of Sciencehttp://dx.doi.org/10.13039/501100001691
JP19H00726[JSPS] Japan Society for the Promotion of Sciencehttp://dx.doi.org/10.13039/501100001691
JP18HH04464[JSPS] Japan Society for the Promotion of Sciencehttp://dx.doi.org/10.13039/501100001691
AB301018National Institutes of Natural Scienceshttp://dx.doi.org/10.13039/501100006321

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us