English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Migration of D-type asteroids from the outer Solar System inferred from carbonate in meteorites

Fujiya, W., Hoppe, P., Ushikubo, T., Fukuda, K., Lindgren, P., Lee, M. R., et al. (2019). Migration of D-type asteroids from the outer Solar System inferred from carbonate in meteorites. Nature astronomy, 3. doi:10.1038/s41550-019-0801-4.

Item is

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Fujiya, W., Author
Hoppe, P.1, Author           
Ushikubo, T., Author
Fukuda, K., Author
Lindgren, P., Author
Lee, M. R., Author
Koike, M., Author
Shirai, K., Author
Sano, Y., Author
Affiliations:
1Particle Chemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_1826291              

Content

show
hide
Free keywords: -
 Abstract: Recent dynamical models of Solar System evolution and isotope studies of rock-forming elements in meteorites have suggested that volatile-rich asteroids formed in the outer Solar System beyond Jupiter’s orbit, despite being currently located in the main asteroid belt. The ambient temperature under which asteroids formed is a crucial diagnostic to pinpoint the original location of asteroids and is potentially determined by the abundance of volatiles they contain. In particular, abundances and 13C/12C ratios of carbonates in meteorites record the abundances of carbon-bearing volatile species in their parent asteroids. However, the sources of carbon for these carbonates remain poorly understood. Here we show that the Tagish Lake meteorite contains abundant carbonates with consistently high 13C/12C ratios. The high abundance of 13C-rich carbonates in Tagish Lake excludes organic matter as their main carbon source. Therefore, the Tagish Lake parent body, presumably a D-type asteroid10, must have accreted a large amount of 13C-rich CO2 ice. The estimated 13C/12C and CO2/H2O ratios of ice in Tagish Lake are similar to those of cometary ice. Thus, we infer that at least some D-type asteroids formed in the cold outer Solar System and were subsequently transported into the inner Solar System owing to an orbital instability of the giant planets.

Details

show
hide
Language(s): eng - English
 Dates: 2019
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1038/s41550-019-0801-4
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Nature astronomy
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London : Springer Nature
Pages: 6 Volume / Issue: 3 Sequence Number: - Start / End Page: - Identifier: ISSN: 2397-3366
CoNE: https://pure.mpg.de/cone/journals/resource/2397-3366