Short-lived nuclides and stellar grains preserved in primitive meteorites, and cometary matter: some reasons to promote future sample return missions

Details Short-lived nuclides and stellar grains preserved in primitive meteorites, and cometary matter: some reasons to promote future sample return missions Short-lived nuclides and stellar grains preserved in primitive meteorites, and cometary matter: some reasons to promote future sample return missions

Nov 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011hsa6.conf..613t&link_type=abstract

Highlights of Spanish Astrophysics VI, Proceedings of the IX Scientific Meeting of the Spanish Astronomical Society (SEA), held

Astronomy and Astrophysics

Astrophysics

Scientific paper

Primitive meteorites contain clues on the astrophysical environment in which the solar system formed. The processing of chemical and isotopic signatures in the protoplanetary disk were preserved in the components of undifferentiated meteorites known as chondrites. The meteoritical evidence inherent to these primordial materials strongly supports that the solar system formed in a stellar association, probably under the presence of some intermediate or even massive star. Chondritic minerals also contain the fingerprints of stellar nucleosynthesis. Short-lived nuclides and stellar synthesized grains from nearby stars were incorporated into the solar nebula before the condensation of the first minerals from the hot vapor phase. Therefore, the isotopic ratios preserved in chondrites provide clues on the stellar sources that produced these nuclides, being supernovae and Asymptotic Giant Branch stars two likely contributors. A recent model has concluded that the inferred SLNs initial ratios in chondrites seems to be consistent with a 6.5 solar masses AGB star. To answer this question additional clues need to be obtained from the study of stellar grains and organic components preserved in pristine chondrites, Interplanetary Dust Particles, and future sample-returned materials from primitive asteroids and comets.

Affiliated with

Also associated with

No associations

Rating

Short-lived nuclides and stellar grains preserved in primitive meteorites, and cometary matter: some reasons to promote future sample return missions 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 Short-lived nuclides and stellar grains preserved in primitive meteorites, and cometary matter: some reasons to promote future sample return missions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Short-lived nuclides and stellar grains preserved in primitive meteorites, and cometary matter: some reasons to promote future sample return missions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-740998