Presolar silicate grains: Abundances, isotopic and elemental compositions, and the effects of secondary processing

C Floss, P Haenecour - Geochemical Journal, 2016 - jstage.jst.go.jp
Close to a thousand presolar silicate grains have been identified since their initial discovery
in interplanetary dust particles (IDPs) just over ten years ago. Studies have shown that …

Presolar silicates in the matrix and fine-grained rims around chondrules in primitive CO3. 0 chondrites: Evidence for pre-accretionary aqueous alteration of the rims in …

P Haenecour, C Floss, TJ Zega, TK Croat… - … et Cosmochimica Acta, 2018 - Elsevier
To investigate the origin of fine-grained rims around chondrules (FGRs), we compared
presolar grain abundances, elemental compositions and mineralogies in fine-grained …

Stardust investigation into the CR chondrite Grove Mountain 021710

X Zhao, C Floss, Y Lin, M Bose - The Astrophysical Journal, 2013 - iopscience.iop.org
We report the presolar grain inventory of the CR chondrite Grove Mountain 021710. A total
of 35 C-anomalous grains (∼ 236 ppm) and 112 O-anomalous grains (∼ 189 ppm) were …

First laboratory observation of silica grains from core collapse supernovae

P Haenecour, X Zhao, C Floss, Y Lin… - The Astrophysical …, 2013 - iopscience.iop.org
We report the discovery of two supernova silica (SiO 2) grains in the primitive carbonaceous
chondrites LaPaZ 031117 and Grove Mountains 021710. Only five presolar silica grains …

[PDF][PDF] Supernova Grains Identified in the Lab

EBYM CRUZ, S VIGNIERI - Ibis, 2013 - researchgate.net
Presolar grains are tiny mineral and/or amorphous grains (from a few nanometers to several
micrometers in diameter) that formed in stellar outflows or supernova ejecta, survived the …